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Liu H, Jiao Y, Forouzanfar T, Wu G, Guo R, Lin H. High-strength double-network silk fibroin based hydrogel loaded with Icariin and BMSCs to inhibit osteoclasts and promote osteogenic differentiation to enhance bone repair. Biomater Adv 2024; 160:213856. [PMID: 38640877 DOI: 10.1016/j.bioadv.2024.213856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Large bone defects cause significant clinical challenges due to the lack of optimal grafts for effective regeneration. The tissue engineering way that requires the combination of biomaterials scaffold, stem cells and proper bioactive factors is a prospective method for large bone repair. Here, we synthesized a three-arm host-guest supramolecule (HGSM) to covalently crosslinking with the naturally derived polymer methacrylated silk fibroin (SFMA). The combination of HGSM and SFMA can form a high strength double-crosslinked hydrogel HGSFMA, that serve as the hydrogel scaffold for bone marrow mesenchymal stem cells (BMSCs) growing. Icariin (ICA) loaded in the HGSFMA hydrogel can promote the osteogenesis efficiency of BMSCs and inhibit the osteoclasts differentiation. Our findings demonstrated that the HGSFMA/ICA hydrogel effectively promoted the in vitro adhesion, proliferation, and osteogenic differentiation of BMSCs. Rat femoral defects model show that this hydrogel can completely repair femoral damage within 4 weeks and significantly promote the secretion of osteogenesis-related proteins. In summary, we have prepared an effective biomimetic bone carrier, offering a novel strategy for bone regeneration and the treatment of large-scale bone defects.
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Affiliation(s)
- Huiling Liu
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Amsterdam, De Boelelaan 1117, the Netherlands
| | - Yang Jiao
- Department of Stomatology, the Seventh Medical Center of PLA General Hospital, No. 5, Nanmencang, Dongsishitiao Street, Dongcheng District, Beijing 100700, China
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Amsterdam, De Boelelaan 1117, the Netherlands
| | - Gang Wu
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Gustav Mahlerlaan, 3004, Amsterdam 1081LA, the Netherlands.
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| | - Haiyan Lin
- Department of Implantology, Hangzhou Stomatology Hospital, Hangzhou 310006, China; Savid School of Stomatology, Hangzhou Medical College, Hangzhou 311399, China; Hangzhou Stomatology Hospital, Pinghai Road, Shangcheng District, Hangzhou 310006, China.
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Permana H, Ruslin M, Yusuf ASH, Gazali M, Fauzi A, Shimo T, Boffano P, Forouzanfar T. Surgical management of dentigerous cyst arises from ectopic tooth: A report of three consecutive cases and literature review. J Stomatol Oral Maxillofac Surg 2024; 125:101685. [PMID: 37967616 DOI: 10.1016/j.jormas.2023.101685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 11/11/2023] [Indexed: 11/17/2023]
Abstract
BACKGROUND Dentigerous cysts are slow-growing, asymptomatic lesions that typically form around the crowns of impacted teeth. They are not detected until they start to harm the tissues around the teeth. AIM The present study aimed to describe surgical techniques for treating dentigerous cysts associated with ectopic teeth. CASES Three patients with dentigerous cysts associated with ectopic teeth, their surgical approaches, and the supporting literature are presented herein. In two cases, the surgical technique used was intra-oral, and in one case was extra-oral. Under general anesthesia, dentigerous cyst enucleation and ectopic tooth removal were carried out. DISCUSSION In the present study, the ectopic tooth cases were all linked to dentigerous cysts. Enucleation or marsupialization treatments could be used to treat dentigerous cysts. Enucleation with the removal of the impacted tooth is the preferred treatment for dentigerous cysts. CONCLUSION To perform minimally invasive surgery, the position of the ectopic teeth, the accessibility of the surgical site, the degree of bone reduction, and the simplicity of instrumentation should all be considered.
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Affiliation(s)
- Hendrijaya Permana
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar 90245, Indonesia
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar 90245, Indonesia.
| | - Andi Sitti Hajrah Yusuf
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar 90245, Indonesia
| | - Mohammad Gazali
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar 90245, Indonesia
| | - Abul Fauzi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar 90245, Indonesia
| | - Tsuyoshi Shimo
- Division of Reconstructive Surgery for Oral and Maxillofacial Region, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido 061-0293, Japan
| | - Paolo Boffano
- Division of Dentistry, Sant'Andrea Hospital, Vercelli Hospital, Corso Mario Abbiate, 21, Vercelli 13100, Italy
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, the Netherlands; Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre (LUMC), Leiden, the Netherlands
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H H, Ruslin M, Al-Jamaei AA, Van Cann EM, Helder MN, Tajrin A, Forouzanfar T. Contextualizing sociocultural beliefs about cleft, knowledge of the treatments, and factors associated with delay of treatment in Eastern Indonesia. J Stomatol Oral Maxillofac Surg 2024; 125:101766. [PMID: 38286219 DOI: 10.1016/j.jormas.2024.101766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/13/2024] [Accepted: 01/18/2024] [Indexed: 01/31/2024]
Abstract
INTRODUCTION Indonesia is a multicultural Asian country with a high incidence of cleft. This study contextualizes how patients' sociocultural backgrounds hinder cleft management in a diverse nation. MATERIAL AND METHODS This study involved 202 families of cleft patients attending six tertiary care hospitals in South Sulawesi between 2021 and 2022. A mixed-methods, descriptive cross-sectional study employed semi-structured interviews and focus group discussions. Thematic content analysis was done using Murdock's causal attribution of illness. Knowledge of the treatments and surgery expectations used open coding. We held medical team focus group discussions to validate education on treatments. Cleft management education was thematically analyzed based on Indonesia's Minister of Health Decree. RESULTS Two hundred-two families and ten medical teams participated. Thematic content analysis revealed common beliefs and factors that hinder medical treatments. The participants were 109 Buginese, 57 Makassarese, 16 Durinese, 8 Luwunese, 8 Torajanese, and 4 Mandarese. 22.3 % were unaware of causation, while 29.2 % attributed it to natural causes. About half of the interviewees believed in supernatural attribution. Even though 40 % of participants knew little about the surgery, they agreed that surgery improves appearance and speech. Medical treatments are delayed due to a lack of treatment knowledge, parents' concerns about surgical safety, and beliefs about causes. DISCUSSION Indigenous societies in South Sulawesi believe in supernatural causes of cleft. Most had incomplete surgical treatment information. An intensive educational health program about causes, treatments, medical specialists, and treatment goals is warranted to enhance patient compliance with medical treatment, ultimately leading to improved health outcomes.
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Affiliation(s)
- Hasanuddin H
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC, Location VUMC, De Boelelaan 1118, Reception T-second floor, Amsterdam 1081 HV, the Netherlands; Department of Oral and Maxillofacial Surgery, Leiden University Medical Center, Leiden, the Netherlands; Department of Dental Public Health, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia.
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Aisha Ah Al-Jamaei
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC, Location VUMC, De Boelelaan 1118, Reception T-second floor, Amsterdam 1081 HV, the Netherlands; Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia; Department of Oral Medicine, Periodontology, and Radiology, Faculty of Dentistry, Sanaá University, Yemen
| | - Ellen M Van Cann
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC, Location VUMC, De Boelelaan 1118, Reception T-second floor, Amsterdam 1081 HV, the Netherlands; Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC, Location VUMC, De Boelelaan 1118, Reception T-second floor, Amsterdam 1081 HV, the Netherlands
| | - Andi Tajrin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC, Location VUMC, De Boelelaan 1118, Reception T-second floor, Amsterdam 1081 HV, the Netherlands; Department of Oral and Maxillofacial Surgery, Leiden University Medical Center, Leiden, the Netherlands
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Natsir Kalla DS, Alkaabi S, Fauzi A, Tajrin A, Nurrahma R, Müller WEG, Schröder HC, Wang X, Forouzanfar T, Helder MN, Ruslin M. Microfragmented Fat and Biphasic Calcium Phosphates for Alveolar Cleft Repair: Protocol for a Prospective, Nonblinded, First-in-Human Clinical Study. JMIR Res Protoc 2024; 13:e42371. [PMID: 38224475 PMCID: PMC10825761 DOI: 10.2196/42371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 01/16/2024] Open
Abstract
BACKGROUND Biphasic calcium phosphates (BCP) may serve as off-the-shelf alternatives for iliac crest-derived autologous bone in alveolar cleft reconstructions. To add osteoinductivity to the osteoconductive BCPs to achieve similar regenerative capacity as autologous bone, a locally harvested buccal fat pad will be mechanically fractionated to generate microfragmented fat (MFAT), which has been shown to have high regenerative capacity due to high pericyte and mesenchymal stem cell content and a preserved perivascular niche. OBJECTIVE Our primary objectives will be to assess the feasibility and safety of the BCP-MFAT combination. The secondary objective will be efficacy, which will be evaluated using radiographic imaging and histological and histomorphometric evaluation of biopsies taken 6 months postoperatively, concomitant with dental implant placement. METHODS Eight patients with alveolar cleft (≥15 years) will be included in this prospective, nonblinded, first-in-human clinical study. MFAT will be prepared intraoperatively from the patient's own buccal fat pad. Regular blood tests and physical examinations will be conducted, and any adverse events (AEs) or serious EAs (SAEs) will be meticulously recorded. Radiographic imaging will be performed prior to surgery and at regular intervals after reconstruction of the alveolar cleft with the BCP-MFAT combination. Biopsies obtained after 6 months with a trephine drill used to prepare the implantation site will be assessed with histological and histomorphometric analyses after methylmethacrylate embedding and sectioning. RESULTS The primary outcome parameter will be safety after 6 months' follow-up, as monitored closely using possible occurrences of SAEs based on radiographic imaging, blood tests, and physical examinations. For efficacy, radiographic imaging will be used for clinical grading of the bone construct using the Bergland scale. In addition, bone parameters such as bone volume, osteoid volume, graft volume, and number of osteoclasts will be histomorphometrically quantified. Recruitment started in November 2019, and the trial is currently in the follow-up stage. This protocol's current version is 1.0, dated September 15, 2019. CONCLUSIONS In this first-in-human study, not only safety but also the histologically and radiographically assessed regenerative potential of the BCP-MFAT combination will be evaluated in an alveolar cleft model. When an SAE occurs, it will be concluded that the BCP-MFAT combination is not yet safe in the current setting. Regarding AEs, if they do not occur at a higher frequency than that in patients treated with standard care (autologous bone) or can be resolved by noninvasive conventional methods (eg, with analgesics or antibiotics), the BCP-MFAT combination will be considered safe. In all other cases, the BCP-MFAT combination will not yet be considered safe. TRIAL REGISTRATION Indonesia Clinical Trial Registry INA-EW74C1N; https://tinyurl.com/28tnrr64. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/42371.
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Affiliation(s)
- Diandra Sabrina Natsir Kalla
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, Netherlands
- Department of Biochemistry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Salem Alkaabi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, Netherlands
- Department of Oral and Maxillofacial Surgery, Fujairah Hospital, Ministry of Health, Fujairah, United Arab Emirates
| | - Abul Fauzi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Andi Tajrin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Rifaat Nurrahma
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, Netherlands
- Department of Prosthodontics, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Werner E G Müller
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Heinz C Schröder
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Xiaohong Wang
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, Netherlands
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Leiden, Netherlands
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, Netherlands
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
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Boffano P, Cavarra F, Brucoli M, Ruslin M, Forouzanfar T, Ridwan-Pramana A, Rodríguez-Santamarta T, de Vicente JC, Starch-Jensen T, Pechalova P, Pavlov N, Doykova I, Konstantinovic VS, Jezdić Z, Barrabé A, Louvrier A, Meyer C, Snäll J, Hagström J, Dovšak T, Birk A, Rocchetti V. Correction to: The epidemiology and management of odontomas: a European multicenter study. Oral Maxillofac Surg 2023; 27:721. [PMID: 35939151 DOI: 10.1007/s10006-022-01110-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Paolo Boffano
- Division of Dentistry, Vercelli Hospital, Vercelli, Italy.
| | | | - Matteo Brucoli
- Division of Maxillofacial Surgery, University Hospital "Maggiore Della Carità", University of Eastern Piedmont, Novara, Italy
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Hasanuddin University, Makassar, Indonesia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | - Angela Ridwan-Pramana
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | | | - Juan Carlos de Vicente
- Servicio de Cirugía Maxilofacial, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Thomas Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg, Denmark
| | - Petia Pechalova
- Department of Oral Surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Nikolai Pavlov
- Clinic of Maxillofacial Surgery, University Hospital "St. George", Plovdiv, Bulgaria
| | - Iva Doykova
- Department of Maxillofacial Surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | | | - Zoran Jezdić
- School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Aude Barrabé
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France
| | - Aurélien Louvrier
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France
- UMR 1098 Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire Et Génique, University of Franche-Comté, INSERM, EFS BFC, 25000, Besançon, Besançon, France
| | - Christophe Meyer
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France
- EA 4662 Nanomedicine Lab Imagery and Therapeutics, University of Franche-Comté, F-25000, Besançon, France
| | - Johanna Snäll
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jaana Hagström
- Department of Pathology, Research Programs Unit, Translational Cancer Biology, University of Helsinki and HUS Helsinki University Hospital, University of Helsinki, Helsinki, Finland, Helsinki, Finland
| | - Tadej Dovšak
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
| | - Anže Birk
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
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Buitenhuis MB, Weinberg FM, Bielevelt F, Gilijamse M, Forouzanfar T, Speksnijder CM, Rosenberg AJWP. Anatomical position of the mandibular condyle after open versus closed treatment of unilateral fractures: A three-dimensional analysis. J Craniomaxillofac Surg 2023; 51:682-691. [PMID: 37852888 DOI: 10.1016/j.jcms.2023.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/24/2023] [Accepted: 09/30/2023] [Indexed: 10/20/2023] Open
Abstract
This study aimed to compare open and closed treatment for unilateral mandibular condyle neck and base fractures by final three-dimensional (3D) condylar position at 6 months follow-up. 3D position was associated with mandibular functioning and pain. A total of 21 patients received open (n = 11) or closed (n = 10) treatment. 3D positions were assessed on cone-beam computed tomography scans. Volume differences, root mean square, translations, and rotations were obtained related to the pursued anatomical position and compared between treatment groups by the Mann-Whitney U test. The 3D position parameters were associated with the maximum interincisal opening (MIO), mixing ability test (MAT), Mandibular Function Impairment Questionnaire (MFIQ), and pain based on Spearman correlation coefficients (rs). Translation in the medial-lateral direction was smaller after open treatment (P = 0.014). 3D position was not associated with the MAT; however, worse position was associated with a smaller MIO. A larger pitch rotation was associated with a worse MFIQ (rs = 0.499, P = 0.025). Volume reduction of the affected condyle was associated with more pain (rs = -0.503, P = 0.020). In conclusion, after unilateral condylar fractures, worse 3D position is associated with a smaller mouth opening and worse patient-reported outcomes. This is independent of the chosen treatment, despite a better anatomical reduction after open treatment.
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Affiliation(s)
- Margje B Buitenhuis
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Florine M Weinberg
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
| | - Freek Bielevelt
- 3D Lab Radboudumc, Radboud University Medical Center, Radboud University, Nijmegen, the Netherlands
| | | | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Caroline M Speksnijder
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Antoine J W P Rosenberg
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
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Hasanuddin H, Al-Jamaei AA, Van Cann EM, Ruslin M, Helder MN, Deshpande P, Forouzanfar T. Cultural Beliefs on Cleft lip and/or Cleft Palate and Their Implications on Management: A Systematic Review. Cleft Palate Craniofac J 2023:10556656231209823. [PMID: 37899714 DOI: 10.1177/10556656231209823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023] Open
Abstract
OBJECTIVE This article examines and summarizes the published epidemiological literature on cross-cultural variations. Particular emphasis was put on addressing cross-cultural beliefs on the causes, management, and attitude toward cleft lip and/or cleft palate. A healthcare provider's awareness of these cross-cultural attitudes and beliefs is vital for promoting effective collaboration with patients' families and ensuring a favorable medical outcome. DESIGN Systematic review. SETTING Not applicable. PARTICIPANTS Patients with cleft lip and/or cleft palate, their families, their communities, and healthcare providers. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Not applicable. RESULTS All relevant and eligible studies were identified using PubMed and Google Scholar databases. The cultural belief was categorized and measured using Murdock's Theories of Illness. The study was reported in compliance with PRISMA guidelines. The quality of the selected studies was evaluated in accordance with the Critical Appraisal Skills Programme criteria (CASP). Fourteen articles covering thirteen countries on four continents met the inclusion criteria. In diverse communities, cleft lip and/or cleft palate was attributed to natural (infection, medication, improper diet, smoke, or radiation) or supernatural (God, eclipse, ancestral spirit, and curse) causes. Reported consequences include stigmatization, inappropriate treatments, leaving patients untreated, and infanticide. CONCLUSION Cultural beliefs are the main cause of misconceptions surrounding a cleft lip and/or cleft palate. There is also a need for public health care providers' intervention to educate society about the natural causes and ease of management, thereby increasing opportunities for patients substantially.
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Affiliation(s)
- H Hasanuddin
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC Location VUMC, 1081 HV Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Center, Leiden, The Netherlands
- Department of Oral and Maxillofacial Surgery Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
- Education and Teacher Training Faculty, Parahikma Institute of Indonesia, Gowa, Indonesia
| | - Aisha Ah Al-Jamaei
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC Location VUMC, 1081 HV Amsterdam, The Netherlands
- Department of Oral Medicine, Periodontology, and Radiology, Faculty of Dentistry, Sanaá University, Sanaá, Yemen
| | - Ellen M Van Cann
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC Location VUMC, 1081 HV Amsterdam, The Netherlands
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC Location VUMC, 1081 HV Amsterdam, The Netherlands
| | - Prasannasrinivas Deshpande
- Department of Oral Medicine and Radiology, JSS Dental College & Hospital, JSS Academy of Higher Education and Research, Mysuru, Karnataka, India
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC Location VUMC, 1081 HV Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Center, Leiden, The Netherlands
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Al-Jamaei AH, de Visscher JGAM, Subramanyam VR, Forouzanfar T, Sminia P, Doulabi BZ, Helder MN. WEE1 kinase inhibitor MK-1775 sensitizes oral tongue squamous cell carcinoma cells to radiation irrespective of TP53 status. Oral Dis 2023; 29:2640-2649. [PMID: 35672254 DOI: 10.1111/odi.14269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/29/2022] [Accepted: 05/31/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Oral tongue squamous cell carcinoma (OTSCC) frequently harbors non-functional p53 and depends on G2/M checkpoint mediated by WEE1. WEE1 suppression has been identified as a promising anti-tumor strategy. This study investigated the capacity of WEE1 kinase inhibitor (MK-1775) and its underlying mechanisms in enhancing radiation responses of OTSCC cells in vitro. MATERIALS AND METHODS WEE1 kinase expression and its downstream target (CDK1) were investigated in OTSCC versus normal oral tissue. A synergistic combination of MK-1775 with radiation on OTSCC cell lines with different p53 statuses was assessed by viability assay. The radio-sensitizing effects of MK-1775 on apoptosis, cell cycle, DNA damage, and mitotic entry were also determined. RESULTS Irradiation enhanced CDK1 expression in all tested cell lines, though the effect was far more pronounced in p53 mutated cell lines. MK-1775 exhibited inhibitory effects against the survival of all cell lines and enhanced their response to the radiation. These effects were strongly elicited by induction of apoptosis and lethal mitosis, but less likely by abrogation of radiation-induced G2 arrest. CONCLUSION These results demonstrate the efficacy of MK-1775 in enhancing the radiation effect on OTSCC in vitro associated with a significant apoptotic death rate, identifying WEE1 inhibitor as a potent radiosensitizer in OTSCC irrespective of p53 mutational status.
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Affiliation(s)
- Aisha Hussein Al-Jamaei
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUmc/Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Jan G A M de Visscher
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUmc/Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - V Ramadugula Subramanyam
- Department of OMFS and Diagnostic Sciences, College of Dentistry, King Faisal University, Al Hofuf, Saudi Arabia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUmc/Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Peter Sminia
- Department of Radiation Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Behrouz Zandieh Doulabi
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam-University of Amsterdam and VU Amsterdam, Amsterdam, The Netherlands
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUmc/Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
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Tanveer W, Ridwan-Pramana A, Molinero-Mourelle P, Forouzanfar T. Applications of CAD/CAM Technology for Craniofacial Implants Placement and Manufacturing of Auricular Prostheses-Systematic Review. J Clin Med 2023; 12:5950. [PMID: 37762891 PMCID: PMC10532239 DOI: 10.3390/jcm12185950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/26/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
This systematic review was aimed at gathering the clinical and technical applications of CAD/CAM technology for craniofacial implant placement and processing of auricular prostheses based on clinical cases. According to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, an electronic data search was performed. Human clinical studies utilizing digital planning, designing, and printing systems for craniofacial implant placement and processing of auricular prostheses for prosthetic rehabilitation of auricular defects were included. Following a data search, a total of 36 clinical human studies were included, which were digitally planned and executed through various virtual software to rehabilitate auricular defects. Preoperative data were collected mainly through computed tomography scans (CT scans) (55 cases); meanwhile, the most common laser scanners were the 3dMDface System (3dMD LLC, Atlanta, Georgia, USA) (6 cases) and the 3 Shape scanner (3 Shape, Copenhagen, Denmark) (6 cases). The most common digital design software are Mimics Software (Mimics Innovation Suite, Materialize, Leuven, Belgium) (18 cases), Freeform software (Freeform, NC, USA) (13 cases), and 3 Shape software (3 Shape, Copenhagen, Denmark) (12 cases). Surgical templates were designed and utilized in 35 cases to place 88 craniofacial implants in auricular defect areas. The most common craniofacial implants were Vistafix craniofacial implants (Entific Medical Systems, Goteborg, Sweden) in 22 cases. A surgical navigation system was used to place 20 craniofacial implants in the mastoid bone. Digital applications of CAD/CAM technology include, but are not limited to, study models, mirrored replicas of intact ears, molds, retentive attachments, customized implants, substructures, and silicone prostheses. The included studies demonstrated a predictable clinical outcome, reduced the patient's visits, and completed the prosthetic rehabilitation in reasonable time and at reasonable cost. However, equipment costs and trained technical staff were highlighted as possible limitations to the use of CAD/CAM systems.
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Affiliation(s)
- Waqas Tanveer
- Department of Oral and Maxillofacial Surgery, Amsterdam University Medical Center, 1081 HV Amsterdam, The Netherlands
| | - Angela Ridwan-Pramana
- Center for Special Care in Dentistry, Department of Maxillofacial Prosthodontics, Stichting Bijzondere Tandheelkunde, 1081 LA Amsterdam, The Netherlands;
| | - Pedro Molinero-Mourelle
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, CHE 3012 Bern, Switzerland;
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands;
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10
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Boffano P, Cavarra F, Brucoli M, Ruslin M, Forouzanfar T, Ridwan-Pramana A, Rodríguez-Santamarta T, de Vicente JC, Starch-Jensen T, Pechalova P, Pavlov N, Doykova I, Konstantinovic VS, Jezdić Z, Barrabé A, Louvrier A, Meyer C, Snäll J, Hagström J, Dovšak T, Birk A, Rocchetti V. The epidemiology and management of odontomas: a European multicenter study. Oral Maxillofac Surg 2023; 27:479-487. [PMID: 35715707 DOI: 10.1007/s10006-022-01091-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/09/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Odontoma is the most commonly diagnosed odontogenic tumor of the oral cavity. The objective of the present study was to assess the demographic variables, patterns, diagnostic features, and management issues of odontomas treated at several European departments of maxillofacial and oral surgery. MATERIALS AND METHODS This study was conducted at 8 European departments of oral surgery between January 1, 2004, and December 31, 2018. Only patients with odontomas were included. The following data were recorded for each patient: gender, age, comorbidities, site, size of odontomas, radiographic features, type of odontoma, treatment of odontomas, treatment of associated teeth, complications, and recurrence. RESULTS A total of 127 patients (70 male and 57 female patients) with odontomas were included. The mean age was 22 years; 71 odontomas were found in the mandible, whereas 56 in the maxilla. In the mandible, the most frequently involved subsite was the parasymphysis, while in the maxilla, the most common subsite was the upper incisor region. The mean size of included odontomas was 15.3 mm. On the whole, 62 complex odontomas, 50 compound odontomas, and 15 mixed-type odontomas were observed. Complete excision of the odontomas was performed in 121 patients. In 24 patients, the extraction of deciduous teeth was performed, and in 43 patients, one or more permanent teeth were removed. Finally, in 9 patients, a partial excision of the odontoma was performed. Recurrence was observed in 4 cases out of 127 patients. CONCLUSIONS Dental practitioners should be aware of the distinct clinical and radiographic features of odontoma in order to perform an appropriate and early diagnosis. Conventional radiography, such as panoramic radiograph, is often sufficient technique for a diagnosis after clinical suspicion or for an incidental diagnosis to prevent later complications, such as impaction or failure of eruption of teeth.
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Affiliation(s)
- Paolo Boffano
- Division of Dentistry, Vercelli Hospital, Vercelli, Italy.
| | | | - Matteo Brucoli
- Division of Maxillofacial Surgery, University Hospital "Maggiore Della Carità", University of Eastern Piedmont, Novara, Italy
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Hasanuddin University, Makassar, Indonesia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | - Angela Ridwan-Pramana
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | | | - Juan Carlos de Vicente
- Servicio de Cirugía Maxilofacial, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Thomas Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg, Denmark
| | - Petia Pechalova
- Department of Oral Surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Nikolai Pavlov
- Clinic of Maxillofacial Surgery, University Hospital "St. George", Plovdiv, Bulgaria
| | - Iva Doykova
- Department of Maxillofacial Surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | | | - Zoran Jezdić
- School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Aude Barrabé
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France
| | - Aurélien Louvrier
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France
- UMR 1098 Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire Et Génique, University of Franche-Comté, INSERM, EFS BFC, 25000, Besançon, Besançon, France
| | - Christophe Meyer
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France
- EA 4662 Nanomedicine Lab Imagery and Therapeutics, University of Franche-Comté, F-25000 , Besançon, France
| | - Johanna Snäll
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jaana Hagström
- Department of Pathology, Research Programs Unit, Translational Cancer Biology, University of Helsinki and HUS Helsinki University Hospital, University of Helsinki, Helsinki, Finland, Helsinki, Finland
| | - Tadej Dovšak
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
| | - Anže Birk
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
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11
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Al-Jamaei AAH, Subramanyam RV, Helder MN, Forouzanfar T, van der Meij EH, Al-Jamei S, de Visscher JGAM. A narrative review of the role of Eph receptors in head and neck squamous cell carcinoma. Oral Dis 2023. [PMID: 37279081 DOI: 10.1111/odi.14625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/10/2023] [Accepted: 05/18/2023] [Indexed: 06/08/2023]
Abstract
Tyrosine kinase receptors (TKR) coordinate a variety of pathological processes in head and neck squamous cell carcinoma (HNSCC), and eventually play a role in patient outcomes. In this review, the role of Eph receptors in HNSCC progression and the possibility of targeting these receptors are illustrated. All relevant studies were identified through a comprehensive search of four electronic databases, including PubMed, Scopus, web of science, and Embase till August 2022. EphA2 and EphB4, along with ephrin-B2, were the most extensively studied proteins in this family. However, overexpression of EphB4 and its ligand ephrin-B2 were the only proteins that consistently showed association with a poor outcome, indicating that these proteins might serve as valuable prognostic markers in HNSCC. High expression of EphA3 and EphB4 was found to play a crucial role in radioresistance of HNSCC. EphB4 loss, in particular, was observed to induce an immunosuppression phenotypic HNSCC. Currently, ongoing clinical trials are investigating the benefits of EphB4-ephrin-B2 blockade in combination with standard of care treatment in HNSCC. Further efforts are needed to explore the biological role and behavioral complexity of this family of TKR in HNSCC with great attention to avoid heterogeneity of HNSCC subsites.
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Affiliation(s)
- Aisha A H Al-Jamaei
- Department of Oral and Maxillofacial Surgery/Oral Pathology, AmsterdamUMC-location VUmc/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
- Department of Oral Surgery and Oral Medicine, Collage of Dentistry, Al-Razi University, Sana'a, Yemen
| | | | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, AmsterdamUMC-location VUmc/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, AmsterdamUMC-location VUmc/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Erik H van der Meij
- Department of Oral and Maxillofacial Surgery/Oral Pathology, AmsterdamUMC-location VUmc/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Medical Centre Leeuwarden, Leeuwarden, The Netherlands
| | - Sayida Al-Jamei
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus TU, Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Jan G A M de Visscher
- Department of Oral and Maxillofacial Surgery/Oral Pathology, AmsterdamUMC-location VUmc/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
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12
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Hendra FN, Helder MN, Ruslin M, Van Cann EM, Forouzanfar T. A network meta-analysis assessing the effectiveness of various radical and conservative surgical approaches regarding recurrence in treating solid/multicystic ameloblastomas. Sci Rep 2023; 13:8445. [PMID: 37231111 DOI: 10.1038/s41598-023-32190-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/23/2023] [Indexed: 05/27/2023] Open
Abstract
Multiple treatment approaches have been undertaken to reduce the incidence of recurrence in solid/multicystic ameloblastoma (SMA), both conservative and radical. A network meta-analysis (NMA) was conducted to assess and compare the effectiveness of these various treatment approaches concurrently. This study was reported based on the Preferred Reporting Items for Systematic Reviews for Network Meta-Analysis (PRISMA-NMA) statement. PubMed (MEDLINE), ScienceDirect, Scopus, and Web of Science were searched until August 10, 2021. The NMA was conducted using the STATA program. Of 1153 records identified in the search, seven observational studies with 180 patients were included. Six different treatment approaches were identified. Segmental resection ranked highest for reducing the recurrence rate with the highest SUCRA score (77.7), followed by curettage with cryotherapy (66.9) and marginal resection (49.3). Network inconsistencies and publication bias appeared to be absent. According to the Confidence in Network Meta-Analysis (CINeMa) method, the evidence's certainty was low for all comparisons due to imprecision and within-study bias. In conclusion, this study is the first NMA in the field of ameloblastoma. Segmental resection seemed to be the most effective treatment approach for minimizing recurrence in SMA patients. Nevertheless, weak certainty of evidence makes that the results must be regarded with caution.
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Affiliation(s)
- Faqi Nurdiansyah Hendra
- Department of Oral and Maxillofacial Surgery/ Oral Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands.
- Department of Anatomy, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia.
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/ Oral Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Ellen M Van Cann
- Department of Oral and Maxillofacial Surgery/ Oral Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/ Oral Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands
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13
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Natsir Kalla DS, Alkaabi SA, Hendra FN, Nasrun NE, Ruslin M, Forouzanfar T, Helder MN. Stem Cell-Based Tissue Engineering for Cleft Defects: Systematic Review and Meta-Analysis. Cleft Palate Craniofac J 2023:10556656231175278. [PMID: 37203174 DOI: 10.1177/10556656231175278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023] Open
Abstract
This study aimed to analyze the efficacy of stem cell-based tissue engineering for the treatment of alveolar cleft (AC) and cleft palate (CP) defects in animal models. Systematic review and meta-analysis. Preclinical studies on alveolar cleft repair in maxillofacial practice. Electronic search was performed using PubMed, Embase, and Cochrane databases. Pre-clinical studies, where stem cell-based tissue engineering was used in the reconstruction of AC and CP in animal models were included. Quality of the selected articles was evaluated using SYRCLE (SYstematic Review Centre for Laboratory animal Experimentation). Review of alveolar cleft bone augmentation interventions in preclinical models. Outcome parameters registered were new bone formation (NBF) and/or bone mineral density (BMD). Thirteen large and twelve small animal studies on AC (21) and CP (4) reconstructions were included. Studies had an unclear-to-high risk of bias. Bone marrow mesenchymal stem cells were the most widely used cell source. Meta-analyses for AC indicated non-significant benefits in favor of: (1) scaffold + cells over scaffold-only (NBF P = .13); and (2) scaffold + cells over empty control (NBF P = .66; BMD P = .31). Interestingly, dog studies using regenerative grafts showed similar to superior bone formation compared to autografts. Meta analysis for the CP group was not possible. AC and CP reconstructions are enhanced by addition of osteogenic cells to biomaterials. Directions and estimates of treatment effect are useful to predict therapeutic efficacy and guide future clinical trials of bone tissue engineering.
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Affiliation(s)
- Diandra S Natsir Kalla
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Biochemistry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Salem A Alkaabi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Fujairah Hospital, Ministry of Health, Fujairah, UAE
| | - Faqi N Hendra
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Anatomy, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Nisrina E Nasrun
- Division of Reconstructive Surgery for Oral and Maxillofacial Region, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
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14
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Natsir Kalla DS, Ruslin M, Aartman IHA, Helder MN, Forouzanfar T, Gilijamse M. Postoperative Daycare as a Safe and Cost-Effective Option for Secondary Alveolar Bone Graft (SABG) Surgery: A Retrospective Comparative Cohort Study. Cleft Palate Craniofac J 2023:10556656231171210. [PMID: 37097837 DOI: 10.1177/10556656231171210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
Abstract
OBJECTIVE To evaluate the outcomes of Secondary Alveolar Bone Grafting (SABG) in patients treated either in daycare or with multiple day hospitalization (MDH) in relation to costs and complication rates. DESIGN Retrospective comparative cohort study. SETTING The data was collected from two settings: Postoperative daycare or MDH after oral cleft surgery in an Academic Medical Center in The Netherlands. PATIENTS Data of 137 patients with unilateral Cleft lip, alveolus, and palate (CLAP) treated between 2006-2018 were evaluated. Registered clinical variables: age, gender, cleft subtype, bone donor site, type of hospitalization, length of stay, additional surgery, complications, surgeons, and costs. INTERVENTIONS Closure of the alveolar cleft with/without closure of the anterior palate. MAIN OUTCOME MEASURES Univariate analyses. RESULTS Of the 137 patients, 46.7% were treated in MDH, and 53.3% in daycare. Total costs for daycare were significantly lower (P < .001). All patients treated in daycare received mandibular symphysis bone, whereas in MDH, 46.9% received iliac crest bone instead. Bone donor site was associated with postoperative care type. Complication rates were slightly but not significantly higher in daycare (26%) vs. MDH (14.1%) (P = .09). Most were Grade I (minor) according to Clavien Dindo classification. CONCLUSIONS Daycare after alveolar cleft surgery is about as safe as MDH, but significantly cheaper.
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Affiliation(s)
- Diandra S Natsir Kalla
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Biochemistry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Irene H A Aartman
- Department of Oral Public Health, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Marjolijn Gilijamse
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Maxillofacial Surgery, OLVG, Amsterdam, The Netherlands
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15
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Weinberg FM, Rosenberg AJWP, Withagen KPA, Gilijamse M, Forouzanfar T, Speksnijder CM. Oral functioning after open versus closed treatment of unilateral condylar neck or base fractures: A two-centre controlled clinical trial. J Oral Rehabil 2023; 50:194-202. [PMID: 36533877 PMCID: PMC10107207 DOI: 10.1111/joor.13403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 09/25/2022] [Accepted: 11/27/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Oral functioning and rehabilitation in patients after condylar trauma can be measured by objective functional outcomes and patient-reported outcomes. The similarities or differences between these outcomes may contribute to the decision if open treatment (OT) or closed treatment (CT) will obtain the most advantageous results. OBJECTIVES The aim of this study was to compare OT versus CT for unilateral condylar mandibular neck or base fractures in a two-centre controlled clinical trial by objective functional outcomes and patient-reported outcomes measured at 6 weeks and 6 months follow-up. Additionally, these outcomes were compared within each group. METHODS Patients were enrolled between January 2017 and November 2019. In one centre, patients received OT by extra-oral open reduction and internal fixation. In another centre, patients received CT by maxillomandibular fixation. Objective measurements included the mixing ability test (MAT) and mandibular active range of motion (ROM). Patient-reported outcomes included the mandibular function impairment questionnaire (MFIQ) and visual analogue scale (VAS) for pain. Independent t-tests and Mann-Whitney U-tests were used to determine differences between the treatment groups at 6 weeks and 6 months follow-up. Paired t-tests and Wilcoxon signed rank tests were used to determine differences within each group. RESULTS Thirty-three patients were enrolled. No differences were found between the groups treated with OT or CT for MAT, ROM, MFIQ and VAS. Both groups showed functional improvement. CONCLUSION Good objective functional outcomes and patient-reported outcomes were achieved with both OT and CT in patients with unilateral condylar mandibular neck or base fractures.
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Affiliation(s)
- Florine M Weinberg
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Antoine J W P Rosenberg
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Koen P A Withagen
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | | | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Caroline M Speksnijder
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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16
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Dong Y, Yao L, Cai L, Jin M, Forouzanfar T, Wu L, Liu J, Wu G. Antimicrobial and Pro-Osteogenic Coaxially Electrospun Magnesium Oxide Nanoparticles-Polycaprolactone /Parathyroid Hormone-Polycaprolactone Composite Barrier Membrane for Guided Bone Regeneration. Int J Nanomedicine 2023; 18:369-383. [PMID: 36700148 PMCID: PMC9869899 DOI: 10.2147/ijn.s395026] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/24/2022] [Indexed: 01/21/2023] Open
Abstract
Introduction An antibacterial and pro-osteogenic coaxially electrospun nanofiber guided bone regeneration (GBR) membrane was fabricated to satisfy the complicated and phased requirements of GBR process. Methods In this study, we synthesize dual-functional coaxially electrospun nanofiber GBR membranes by encapsulating parathyroid hormone (PTH) in the core layer and magnesium oxide nanoparticles (MgONPs) in the shell layer (MgONPs-PCL/PTH-PCL). Herein, the physicochemical characterization of MgONPs-PCL/PTH-PCL, the release rates of MgONPs and PTH, and antibacterial efficiency of the new membrane were evaluated. Furthermore, the pro-osteogenicity of the membranes was assessed both in-vitro and in-vivo. Results We successfully fabricated a coaxially electrospun nanofiber MgONPs-PCL/PTH-PCL membrane with the majority of nanofibers (>65%) ranged from 0.40~0.60μm in diameter. MgONPs-PCL/PTH-PCL showed outstanding antibacterial potential against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) through the release of MgONPs. We also discovered that the incorporation of MgONPs significantly prolonged the release of PTH. Furthermore, both the in-vivo and in-vitro studies demonstrated that high dosage of PTH promoted pro-osteogenicity of the membrane to improve bone regeneration efficacy with the presence of MgONPs. Conclusion The new composite membrane is a promising approach to enhance bone regeneration in periodontitis or peri-implantitis patients with large-volume bone defects.
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Affiliation(s)
- Yiwen Dong
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China,Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Litao Yao
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands,Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China,Correspondence: Litao Yao, Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China, Zhejiang, Email
| | - Lei Cai
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Mi Jin
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Lianjun Wu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China,Jinsong Liu, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China, Email
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
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Minnema J, Ernst A, van Eijnatten M, Pauwels R, Forouzanfar T, Batenburg KJ, Wolff J. A review on the application of deep learning for CT reconstruction, bone segmentation and surgical planning in oral and maxillofacial surgery. Dentomaxillofac Radiol 2022; 51:20210437. [PMID: 35532946 PMCID: PMC9522976 DOI: 10.1259/dmfr.20210437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 04/21/2022] [Accepted: 04/25/2022] [Indexed: 12/11/2022] Open
Abstract
Computer-assisted surgery (CAS) allows clinicians to personalize treatments and surgical interventions and has therefore become an increasingly popular treatment modality in maxillofacial surgery. The current maxillofacial CAS consists of three main steps: (1) CT image reconstruction, (2) bone segmentation, and (3) surgical planning. However, each of these three steps can introduce errors that can heavily affect the treatment outcome. As a consequence, tedious and time-consuming manual post-processing is often necessary to ensure that each step is performed adequately. One way to overcome this issue is by developing and implementing neural networks (NNs) within the maxillofacial CAS workflow. These learning algorithms can be trained to perform specific tasks without the need for explicitly defined rules. In recent years, an extremely large number of novel NN approaches have been proposed for a wide variety of applications, which makes it a difficult task to keep up with all relevant developments. This study therefore aimed to summarize and review all relevant NN approaches applied for CT image reconstruction, bone segmentation, and surgical planning. After full text screening, 76 publications were identified: 32 focusing on CT image reconstruction, 33 focusing on bone segmentation and 11 focusing on surgical planning. Generally, convolutional NNs were most widely used in the identified studies, although the multilayer perceptron was most commonly applied in surgical planning tasks. Moreover, the drawbacks of current approaches and promising research avenues are discussed.
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Affiliation(s)
- Jordi Minnema
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, 3D Innovationlab, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Anne Ernst
- Institute for Medical Systems Biology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Maureen van Eijnatten
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, 3D Innovationlab, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Ruben Pauwels
- Aarhus Institute of Advanced Studies, Aarhus University, Aarhus, Denmark
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, 3D Innovationlab, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Kees Joost Batenburg
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, 3D Innovationlab, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Jan Wolff
- Department of Dentistry and Oral Health, Aarhus University, Vennelyst Boulevard, Aarhus, Denmark
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18
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Akbar M, Ruslin M, Yusuf ASH, Boffano P, Tomihara K, Forouzanfar T. Unusual generalized tetanus evolving from odontogenic infection: A case report and review of recent literature. Heliyon 2022; 8:e10810. [PMID: 36200020 PMCID: PMC9529490 DOI: 10.1016/j.heliyon.2022.e10810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 08/23/2022] [Accepted: 09/23/2022] [Indexed: 12/02/2022] Open
Abstract
Tetanus is an acute and vaccine-preventable disease caused by anaerobic bacteria, Clostridium tetani. This bacterium can enter the human body via a deep wound, burn injury or medical procedure; however, certain cases also originate from odontogenic infection. In the present study, a tetanus infection associated with dental origin in a 44-year-old man is reported. The case was complicated by lockjaw and difficulty swallowing that worsened over a few days, followed by a generalized spasm. Furthermore, a literature review was performed, in which six reported cases of tetanus, presumed to be of dental or oral origin, were identified between 2011and 2021. General practitioners, especially dentists, should be aware of tetanus associated with odontogenic origin even without a history of an external penetrating wound or other medical procedures:.
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19
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Al-Jamaei AA, Subramanyam RV, Helder MN, Forouzanfar T, Ruslin M, Meij EV, Visscher JG. Significance of immunohistochemistry biomarkers in prediction of malignant transformation of oral lichen planus: A systematic review. Med Oral Patol Oral Cir Bucal 2022; 27:e480-e488. [PMID: 35975803 PMCID: PMC9445608 DOI: 10.4317/medoral.25491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/27/2022] [Indexed: 12/04/2022]
Abstract
Background Oral lichen planus (OLP) is a chronic inflammatory disorder with increased risk for malignant transformation. Biomarker validation is a pivotal step in moving newly discovered biomarkers towards clinical implementation. We performed a systematic review of studies on biomarkers related to OLP, wherein biomarkers have been described in at least two independent studies. Our aim was to determine whether any of these biomarkers might be promising in predicting the increased risk of malignant transformation of OLP. Material and Methods We searched the following databases until August 2021: PUBMED, EMBASE, and Web of Science. Due to high heterogeneity, a qualitative rather than quantitative assessment was conducted. Only proteins that consistently showed a significantly high level of expression in neoplastic tissues versus OLP in two or more publications were considered as promising markers. Results Initial database researches identified 1671, of which 24 articles were included in the final analysis. The most frequently reported proteins were p53, Bcl-2 and Ki-67, though there were controversies. PCNA and P21 were the only proteins that showed consistent evidence of clinical usefulness as cancer predictors to be considered as promising markers. Extensive methodological variations in the evaluation of expressions and statistical analyses of the included markers were observed, which hampered comparisons of the results. Conclusions Multiple levels of heterogeneity with a scarcity of high-quality studies were identified. PCNA and P21 were identified as promising predictive markers for evaluating the risk of malignant transformation of OLP, but they require further validation. The focus of future research on validation of predictive biomarkers of OLP should be considered as a high priority because it will accelerate the introduction of newly discovered markers into the clinical setting. Key words:Oral lichen planus, Immunohistochemistry, biomarkers, malignant transformation, PCNA, P21, p53, BCl-2.
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Affiliation(s)
- A-A Al-Jamaei
- Department of Oral and Maxillofacial Surgery/Oral Pathology AmsterdamUMC-location VUmc/Academic Centre for Dentistry Amsterdam PO Box 7057, 1007 MB Amsterdam, The Netherlands
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20
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Alkaabi S, Alsabri G, Natsir Kalla D, Alavi S, Nurrahma R, Forouzanfar T, Helder M. Regenerative graft materials for maxillary sinus elevation in randomized clinical trials: A meta-analysis. Advances in Oral and Maxillofacial Surgery 2022. [DOI: 10.1016/j.adoms.2022.100350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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21
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Hou D, Hu F, Mao Y, Yan L, Zhang Y, Zheng Z, Wu A, Forouzanfar T, Pathak JL, Wu G. Cationic antimicrobial peptide NRC-03 induces oral squamous cell carcinoma cell apoptosis via CypD-mPTP axis-mediated mitochondrial oxidative stress. Redox Biol 2022; 54:102355. [PMID: 35660629 PMCID: PMC9511698 DOI: 10.1016/j.redox.2022.102355] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/14/2022] [Accepted: 05/24/2022] [Indexed: 02/07/2023] Open
Abstract
Pleurocidin-family cationic antimicrobial peptide NRC-03 exhibits potent and selective cytotoxicity towards cancer cells. However, the anticancer effect of NRC-03 in oral squamous cell carcinoma (OSCC) and the molecular mechanism of NRC-03 induced cancer cell death is still unclear. This study focused to investigate mitochondrial oxidative stress-mediated altered mitochondrial function involved in NRC-03-induced apoptosis of OSCC cells. NRC-03 entered the OSCC cells more easily than that of normal cells and bound to mitochondria as well as the nucleus, causing cell membrane blebbing, mitochondria swelling, and DNA fragmentation. NRC-03 induced high oxygen consumption, reactive oxygen species (ROS) release, mitochondrial dysfunction, and apoptosis in OSCC cells. Non-specific antioxidant N-acetyl-l-cysteine (NAC), or mitochondria-specific antioxidant mitoquinone (MitoQ) alleviated NRC-03-induced apoptosis and mitochondrial dysfunction indicated that NRC-03 exerts a cytotoxic effect in cancer cells via inducing cellular and mitochondrial oxidative stress. Moreover, the expression of cyclophilin D (CypD), the key component of mitochondrial permeability transition pore (mPTP), was upregulated in NRC-03-treated cancer cells. Blockade of CypD by siRNA-mediated depletion or pharmacological inhibitor cyclosporine A (CsA) significantly suppressed NRC-03-induced mitochondrial oxidative stress, mitochondrial dysfunction, and apoptosis. NRC-03 also activated MAPK/ERK and NF-κB pathways. Importantly, intratumoral administration of NRC-03 inhibited the growth of CAL-27 cells-derived tumors on xenografted animal models. Taken together, our study indicates that NRC-03 induces apoptosis in OSCC cells via the CypD-mPTP axis mediated mitochondrial oxidative stress.
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Affiliation(s)
- Dan Hou
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong, 510182, China; Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC/VUmc and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, 1081 HZ, the Netherlands
| | - Fengjun Hu
- Institute of Information Technology, Zhejiang Shuren University, Hangzhou, Zhejiang, 310000, China
| | - Yixin Mao
- Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China; Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China; Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, 1081 HZ, Netherlands
| | - Liang Yan
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Yuhui Zhang
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong, 510182, China
| | - Zhichao Zheng
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong, 510182, China
| | - Antong Wu
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong, 510182, China
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC/VUmc and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, 1081 HZ, the Netherlands
| | - Janak L Pathak
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong, 510182, China.
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC/VUmc and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, 1081 HZ, the Netherlands; Department of Oral Cell Biology, Academic Centre of Dentistry Amsterdam (ACTA), University van Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, 1081LA, Netherlands.
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22
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van Baar GJC, Lodders JN, Chhangur C, Leeuwrik L, Forouzanfar T, Liberton NPTJ, Berkhout WER, Winters HAH, Leusink FKJ. The Amsterdam UMC protocol for computer-assisted mandibular and maxillary reconstruction; A cadaveric study. Oral Oncol 2022; 133:106050. [PMID: 35914442 DOI: 10.1016/j.oraloncology.2022.106050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 06/12/2022] [Accepted: 07/25/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVES In this cadaveric study, the accuracy of CAS guided mandibular and maxillary reconstruction including immediate dental implant placement in different Brown defect classes is assessed. MATERIALS AND METHODS The virtual planning and surgical procedure was conducted according to a newly proposed Amsterdam UMC reconstruction protocol. Postoperative evaluation was performed according to a previously proposed evaluation guideline. RESULTS Fourteen mandibular and 6 maxillary reconstructions were performed. Average mandibular angle deviations were 1.52°±1.32, 1.85°±1.58, 1.37°±1.09, 1.78°±1.37, 2.43°±1.52 and 2.83°±2.37, respectively for the left and right axial angles, left and right coronal angles and left and right sagittal angles. A total of 62 dental implants were placed in neomandibles with an average dXYZ values of 3.68 ± 2.21 mm and 16 in neomaxillas with an average dXYZ values of 3.24 ± 1.7 mm. CONCLUSION Promising levels of accuracy were achieved for all mandibular angles. Dental implant positions approached the preoperative preferred positions well, within the margin to manufacture prosthetic devices.
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Affiliation(s)
- Gustaaf J C van Baar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
| | - Johannes N Lodders
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Chayenne Chhangur
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Lars Leeuwrik
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Niels P T J Liberton
- Department of Medical Technology, 3D Innovation Lab, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - W Erwin R Berkhout
- Department of Oral and Maxillofacial Radiology, Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, the Netherlands
| | - Henri A H Winters
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Frank K J Leusink
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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23
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Xu G, Shen C, Lin H, Zhou J, Wang T, Wan B, Binshabaib M, Forouzanfar T, Xu G, Alharbi N, Wu G. Development, In-Vitro Characterization and In-Vivo Osteoinductive Efficacy of a Novel Biomimetically-Precipitated Nanocrystalline Calcium Phosphate With Internally-Incorporated Bone Morphogenetic Protein-2. Front Bioeng Biotechnol 2022; 10:920696. [PMID: 35935495 PMCID: PMC9354744 DOI: 10.3389/fbioe.2022.920696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/30/2022] [Indexed: 12/02/2022] Open
Abstract
The repair of large-volume bone defects (LVBDs) remains a great challenge in the fields of orthopedics and maxillofacial surgery. Most clinically available bone-defect-filling materials lack proper degradability and efficient osteoinductivity. In this study, we synthesized a novel biomimetically-precipitated nanocrystalline calcium phosphate (BpNcCaP) with internally incorporated bone morphogenetic protein-2 (BpNcCaP + BMP-2) with an aim to develop properly degradable and highly osteoinductive granules to repair LVBDs. We first characterized the physicochemical properties of the granules with different incorporation amounts of BMP-2 using scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. We evaluated the cytotoxicity and cytocompatibility of BpNcCaP by assessing the viability and adhesion of MC3T3-E1 pre-osteoblasts using PrestoBlue assay, Rhodamine-Phalloidin and DAPI staining, respectively. We further assessed the in-vivo osteoinductive efficacy in a subcutaneous bone induction model in rats. In-vitro characterization data showed that the BpNcCaP + BMP-2 granules were comprised of hexagonal hydroxyapatite with an average crystallite size ranging from 19.7 to 25.1 nm and a grain size at 84.13 ± 28.46 nm. The vickers hardness of BpNcCaP was 32.50 ± 3.58 HV 0.025. BpNcCaP showed no obvious cytotoxicity and was favorable for the adhesion of pre-osteoblasts. BMP-2 incorporation rate could be as high as 65.04 ± 6.01%. In-vivo histomorphometric analysis showed that the volume of new bone induced by BpNcCaP exhibited a BMP-2 amount-dependent increasing manner. The BpNcCaP+50 μg BMP-2 exhibited significantly more degradation and fewer foreign body giant cells in comparison with BpNcCaP. These data suggested a promising application potential of BpNcCaP + BMP-2 in repairing LVBDs.
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Affiliation(s)
- Gaoli Xu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science (AMS), Amsterdam, Netherlands
- Department of Stomatology, Zhejiang Hospital, Hangzhou, China
| | - Chenxi Shen
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science (AMS), Amsterdam, Netherlands
- Hangzhou Huibo Science and Technology Co. Ltd., Xinjie Science Park, Hangzhou, China
| | - Haiyan Lin
- Department of Implantology, Hangzhou Stomatology Hospital, Hangzhou, China
- Savid School of Stomatology, Hangzhou Medical College, Hangzhou, China
| | - Jian Zhou
- Department of Implantology, Hangzhou Stomatology Hospital, Hangzhou, China
| | - Ting Wang
- Department of Stomatology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ben Wan
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science (AMS), Amsterdam, Netherlands
- Hangzhou Huibo Science and Technology Co. Ltd., Xinjie Science Park, Hangzhou, China
| | - Munerah Binshabaib
- Department of Preventive Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science (AMS), Amsterdam, Netherlands
| | - Guochao Xu
- Department of Stomatology, Zhejiang Hospital, Hangzhou, China
| | - Nawal Alharbi
- Department of Prosthetic Dental Sciences, King Saud University, Riyadh, Saudi Arabia
- *Correspondence: Nawal Alharbi, ; Gang Wu,
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science (AMS), Amsterdam, Netherlands
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, Netherlands
- *Correspondence: Nawal Alharbi, ; Gang Wu,
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24
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Lei XX, Cheng LHH, Lin HY, Yang Y, Lu YY, Pang MR, Dong YQ, Bikker FJ, Forouzanfar T, Cheng B, Wu G. The minimal active domain of human salivary histatin 1 is efficacious in promoting acute skin wound healing. Mil Med Res 2022; 9:41. [PMID: 35841072 PMCID: PMC9287874 DOI: 10.1186/s40779-022-00398-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/21/2022] [Indexed: 12/05/2022] Open
Affiliation(s)
- Xiao-Xuan Lei
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, 1081HV, Amsterdam, The Netherlands.,Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China
| | - Liu Hang-Hang Cheng
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, 1081HV, Amsterdam, The Netherlands.,Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China
| | - Hai-Yan Lin
- Savaid Stomatology School, Hangzhou Medical College, Hangzhou, 310053, China
| | - Yu Yang
- Department of Plastic Surgery, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510140, China
| | - Yun-Yu Lu
- Hangzhou Huibo Science and Technology Co. LTD, Xinjie Science Park, Hangzhou, 311217, China
| | - Meng-Ru Pang
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China
| | - Yun-Qing Dong
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China
| | - Floris J Bikker
- Department of Oral Biochemistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), 1081LA, Amsterdam, The Netherlands
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, 1081HV, Amsterdam, The Netherlands
| | - Biao Cheng
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Liuhua Road 111, Guangzhou, 510030, China.
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, 1081HV, Amsterdam, The Netherlands. .,Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Gustav Mahlerlaan 3004, 1081LA, Amsterdam, The Netherlands.
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25
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Slieker FJB, Van Gemert JTM, Seydani MG, Farsai S, Breimer GE, Forouzanfar T, de Bree R, Rosenberg AJWP, Van Cann EM. Value of cone beam computed tomography for detecting bone invasion in squamous cell carcinoma of the maxilla. Oral Surg Oral Med Oral Pathol Oral Radiol 2022; 134:102-109. [PMID: 35318943 DOI: 10.1016/j.oooo.2022.01.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 01/13/2022] [Accepted: 01/28/2022] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To determine the diagnostic value of cone beam computed tomography (CBCT) in detecting bone invasion in maxillary squamous cell carcinoma (MSCC). STUDY DESIGN In this retrospective cohort study, preoperative CBCT scans were independently assessed by a single surgeon in imaging assessment 1 (IA 1) and by 1 surgeon with 2 dentists in consensus (IA 2) for the presence of bone invasion in MSCC. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy, area under the receiver operating characteristic curve (AUC), and Cohen's κ were calculated. Histopathologic results of resection specimens served as the reference standard. RESULTS Of 27 patients, 19 (70%) had proven bone invasion. IA 1 yielded 68.4% sensitivity, 75.0% specificity, 86.7% PPV, 50.0% NPV, 70.4% accuracy, and 0.717 AUC. All results of IA 2 were true-positive and true-negative, resulting in 100% sensitivity, specificity, PPV, NPV, accuracy, and AUC. The assessments differed in 6 cases. Interobserver κ was fair (0.38, 95% CI 0.04-0.72, P = .038). There was a significant association between CBCT detection of bone invasion and extent of surgical treatment (P = .006) CONCLUSIONS: The diagnostic accuracy of CBCT was high but observer-dependent. CBCT examination may be useful in surgical treatment planning.
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Affiliation(s)
- F J B Slieker
- Department of Head and Neck Surgical Oncology, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Oral and Maxillofacial Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - J T M Van Gemert
- Department of Head and Neck Surgical Oncology, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Oral and Maxillofacial Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - M Ghafoori Seydani
- Department of Head and Neck Surgical Oncology, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - S Farsai
- Department of Head and Neck Surgical Oncology, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - G E Breimer
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - R de Bree
- Department of Head and Neck Surgical Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - A J W P Rosenberg
- Department of Oral and Maxillofacial Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - E M Van Cann
- Department of Head and Neck Surgical Oncology, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Oral and Maxillofacial Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
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26
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Chargi N, Breik O, Forouzanfar T, Martin T, Praveen P, Idle M, Parmar S, de Bree R. Association of low skeletal muscle mass and systemic inflammation with surgical complications and survival after microvascular flap reconstruction in patients with head and neck cancer. Head Neck 2022; 44:2077-2094. [PMID: 35652420 PMCID: PMC9540531 DOI: 10.1002/hed.27113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 11/30/2022] Open
Abstract
Background Skeletal muscle mass (SMM) and chronic inflammation are associated with postoperative complications and survival. Methods Patients with head and neck cancer (HNC) undergoing microvascular free flap reconstruction were included. SMM and neutrophil‐to‐lymphocyte ratio (NLR) were measured and their association with treatment outcomes analyzed. Results Five hundred and fifty‐four patients were included. Predictors for complications were elevated NLR in all flaps (OR 1.5), low SMM in radial forearm flap (OR 2.0), and elevated NLR combined with low SMM in fibula flap surgery (OR 4.3). Patients with solely elevated NLR were at risk for flap‐related complications (OR 3.0), severe complications (OR 2.2), and when combined with low SMM for increased length of hospital stays (LOS) (+3.9 days). In early‐stage HNC, low SMM (HR 2.3), and combined elevated NLR with low SMM (HR 2.6) were prognostics for decreased overall survival. Conclusions SMM and NLR are predictive for poor outcomes in patients with HNC undergoing microvascular reconstruction.
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Affiliation(s)
- Najiba Chargi
- Department of Head and Neck Surgical Oncology, Division of Imaging and Oncology Center, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Omar Breik
- Department of Oral and Maxillofacial Surgery, University Hospital Birmingham NHS Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology VU University Medical Center/Academic Centre for Dentistry Amsterdam, ACTA University of Amsterdam and VU University Amsterdam, Amsterdam, the Netherlands
| | - Timothy Martin
- Department of Oral and Maxillofacial Surgery, University Hospital Birmingham NHS Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Prav Praveen
- Department of Oral and Maxillofacial Surgery, University Hospital Birmingham NHS Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Matthew Idle
- Department of Oral and Maxillofacial Surgery, University Hospital Birmingham NHS Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Satyesh Parmar
- Department of Oral and Maxillofacial Surgery, University Hospital Birmingham NHS Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Remco de Bree
- Department of Head and Neck Surgical Oncology, Division of Imaging and Oncology Center, University Medical Center Utrecht, Utrecht, the Netherlands
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Lei X, Cheng L, Yang Y, Pang M, Dong Y, Zhu X, Chen C, Yao Z, Wu G, Cheng B, Forouzanfar T. Co-administration of platelet-rich plasma and small intestinal submucosa is more beneficial than their individual use in promoting acute skin wound healing. Burns Trauma 2022; 9:tkab033. [PMID: 35464804 DOI: 10.1093/burnst/tkab033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 07/14/2021] [Indexed: 01/13/2023]
Abstract
Background Acute skin wounds may compromise the skin barrier, posing a risk of infection. Small intestinal submucosa (SIS) is widely used to treat acute and chronic wounds. However, the efficacy of SIS to accelerate wound healing still needs to be improved to meet clinical demands. To tackle this problem, platelet-rich plasma (PRP) is used due to its potency to promote proliferation, migration and adhesion of target cells. In this study, we applied PRP and SIS to skin wounds to explore their effects on wound healing by evaluating re-epithelialization, collagen production, angiogenesis and the inflammatory response. Methods A 1 × 1-cm full-thickness skin defect was established in mice. Sixty mice were divided into four treatment groups: PRP + SIS, PRP, SIS and control. On days 3, 5, 7, 10 and 14 post-surgery, tissue specimens were harvested. Haematoxylin and eosin, Masson's trichrome, immunohistochemical and immunofluorescence double staining were used to visualize epidermal thickness, collagen and vascular regeneration and inflammation. Results Wound contraction in the PRP and PRP + SIS groups was significantly greater, compared with the other groups, on days 3 and 5 post-surgery. A histological analysis showed higher collagen expression in the PRP and PRP + SIS groups on day 7, which was associated with a thicker epidermal layer on day 14. In addition, immunohistochemical staining showed that CD31-positive blood vessels and vascular endothelial growth factor expression in the PRP + SIS and PRP groups were significantly higher, compared with the control group. Furthermore, immunofluorescence double staining showed that the number of M1 and M2 macrophages in the PRP + SIS and PRP groups was higher, compared with the control and SIS groups alone, on day 3. However, on day 7, the number of M1 macrophages dramatically decreased in the PRP + SIS and PRP groups. The ratio of M2 to M1 macrophages in the PRP + SIS and PRP groups was 3.97 and 2.93 times that of the control group and 4.56 and 3.37 times that of the SIS group, respectively. Conclusion Co-administration of SIS and PRP has a better effect on promoting angiogenesis, re-epithelialization and collagen regeneration in managing acute wound healing than either agent alone.
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Affiliation(s)
- Xiaoxuan Lei
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, 1081HV, The Netherlands
| | - Liuhanghang Cheng
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, 1081HV, The Netherlands
| | - Yu Yang
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, 510030, China
| | - Mengru Pang
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, 510030, China
| | - Yunqing Dong
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, 510030, China
| | - Xuanru Zhu
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, 510030, China
| | - Caihong Chen
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, 510030, China
| | - Zexin Yao
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, 510030, China
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, 1081HV, The Netherlands
| | - Biao Cheng
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, 510030, China
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, 1081HV, The Netherlands
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Al-Jamaei AAH, Helder MN, Forouzanfar T, Brakenhoff RH, Leemans CR, de Visscher JGAM, van Dijk BAC. Age-group-specific trend analyses of oropharyngeal squamous cell carcinoma incidence from 1989 to 2018 and risk factors profile by age-group in 2015-2018: a population-based study in The Netherlands. Eur J Cancer Prev 2022; 31:158-165. [PMID: 34267108 DOI: 10.1097/cej.0000000000000678] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Incidence of oropharyngeal squamous cell carcinoma (OPSCC) is increasing globally and the human papillomavirus (HPV) has been linked to this increase. This study aimed to present a comprehensive overview of OPSCC trends in incidence rates by age group and investigate differences in risk factors profile. Netherlands Cancer Registry data from 1989-2018 were analyzed to calculate the annual percentage change (APC) over European standardized incidence rates by gender and age group using joinpoint regression software. Smoking, alcohol drinking and HPV-status were available for 2015-2018. During 1989-2018, 13 048 cases of OPSCC were reported with a male-to-female ratio of 2.1:1. The overall incidence rate increased by 5.4% (APC) annually from 1989 to 1996 but slowed thereafter by 1.2%. Significant declines were found in patients of 35-44 years (APCs -3.7%). Adults aged 45-59 years displayed significant increases from 1989 to 2001, followed by a significant decline. In patients ≥60 years, the incidence rates increased overall, with APC for women being consistently higher than men. The data on HPV status was available for 69% of the patients, of whom 47% were HPV+. Smoking and alcohol consumption were more prevalent, that is 75 and 76 % respectively. The declining trends of OPSCC for Dutch people aged 35-44 years from 1989 to 2018 and for those aged 45-59 years from 2002 onwards are inconsistent to trends reported elsewhere in the developed countries. The prevalence of smoking and drinking alcohol was quite high in all age groups, whereas the proportion of HPV-positivity was relatively low.
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Affiliation(s)
- Aisha A H Al-Jamaei
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUMC/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUMC/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUMC/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam
| | - Ruud H Brakenhoff
- Amsterdam UMC, Vrije Universiteit Amsterdam, Otolaryngology-Head and Neck Surgery, Cancer Center Amsterdam
| | - C René Leemans
- Amsterdam UMC, Vrije Universiteit Amsterdam, Otolaryngology-Head and Neck Surgery, Cancer Center Amsterdam
| | - Jan G A M de Visscher
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUMC/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam
| | - Boukje A C van Dijk
- The Netherlands Comprehensive Cancer Organization (IKNL), Department of Research and Development, Utrecht
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Tan CXW, Brand HS, Qaddour O, van der Bijl PML, De Boer NKH, Forouzanfar T, de Visscher JGAM. Knowledge and Interdisciplinary Communication of Gastroenterologists and Dentists in the Netherlands About Gastrointestinal Diseases With Oral Manifestations. Crohns Colitis 360 2022; 4:otac006. [PMID: 36777554 PMCID: PMC9802256 DOI: 10.1093/crocol/otac006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Indexed: 11/15/2022] Open
Abstract
Background Gastrointestinal diseases can have oral manifestations. The aim of this study was to investigate the knowledge of gastroenterologists and dentists about gastrointestinal diseases with oral manifestations and to assess the frequency, extent and content of communication between gastroenterologists and oral healthcare professionals. Methods Separate questionnaires were developed and sent to all 523 gastroenterologists and a random selection of 500 dentists in the Netherlands. Both questionnaires contained questions about demographic characteristics of the participants, 10 statements about gastrointestinal diseases with possible oral manifestations and questions about the communication between gastroenterologists and oral healthcare professionals. Additionally, the questionnaire for gastroenterologists contained 9 statements about general dentistry and the questionnaire for dentist had 9 questions about gastrointestinal diseases. Results Gastroenterologists answered 47.6% ± 31.9% of the questions correct about gastrointestinal diseases with possible oral manifestations and 57.5% ± 27.9% of the questions correct about general dentistry. Dentists answered 26.6% ± 20.5% of the questions correct about possible oral manifestations of gastrointestinal diseases and 50.3% ± 18.7% of the questions correct about gastrointestinal diseases. Gastroenterologists and dentists valued interdisciplinary consultation as very useful with scores of 4.07 ± 0.70 and 4.67 ± 0.49 on a 5-point Likert scale, respectively, but the frequency of consultation was considered insufficiently with a mean score of 2.88 ± 1.01 and 2.24 ± 1.05 on a 5-point Likert scale, respectively. Conclusions This study suggests that the knowledge of gastroenterologists and dentists about gastrointestinal diseases with oral manifestations could be improved. Interdisciplinary consultation was considered valuable for the optimal treatment of their patients but was assessed as insufficient.
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Affiliation(s)
- Christopher X W Tan
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands,Address correspondence to: Christopher X.W. Tan, DDS, MD, Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centre, location VUmc, PO Box 7057, 1007 MB Amsterdam, The Netherlands ()
| | - Henk S Brand
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Oumaima Qaddour
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Paulette M L van der Bijl
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Nanne K H De Boer
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centre, VU University, AGEM Research Institute, Amsterdam, The Netherlands
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Jan G A M de Visscher
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
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Natsir-Kalla D, Ruslin M, Alkaabi S, Yusuf A, Tajrin A, Forouzanfar T, Kuswanto H, Boffano P, Lo L. Influence of patient-related factors on intraoperative blood loss during double opposing Z-plasty Furlow palatoplasty and buccal fat pad coverage: A prospective study. J Clin Exp Dent 2022; 14:e608-e614. [PMID: 36046168 PMCID: PMC9422969 DOI: 10.4317/jced.59407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/06/2022] [Indexed: 11/13/2022] Open
Abstract
Background Surgical procedures including palatoplasty have a risk for complications. The aim of this study was to investigate the intraoperative and early postoperative blood loss using the buccal fat pad (BFP) during cleft lip and/or cleft palate (CL/P) surgery.
Material and Methods This prospective study included a total of 109 patients with cleft palate (CP) during a three-month period of treatment at Hasanuddin University Dental Hospital (permanent center) and charity trips in rural parts of Eastern Indonesia. All patients were treated with DOZ Furlow technique combined with BFP graft. Before and after surgery, the total amount of intraoperative blood loss was calculated by measuring the weight differences of the gauze swabs that were used to control the surgical bleeding followed by a complete blood count at three days postoperatively.
Results The difference in the amount of blood loss based on age categories in charity groups was found to be significant (P<0.05). Overall, we found that high body weight and operation time significantly contributed to increased blood loss (P<0.05).
Conclusions Weight and operative time can contribute to more blood loss during palatoplasty. Key words:Buccal fat pad, complication, cleft lip, cleft palate, palatoplasty.
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Ruslin M, van Trikt KN, Yusuf A, Tajrin A, Fauzi A, Rasul M, Boffano P, Forouzanfar T. Epidemiology, treatment, and recurrence of odontogenic and non-odontogenic cysts in South Sulawesi, Indonesia: A 6-year retrospective study. J Clin Exp Dent 2022; 14:e247-e253. [PMID: 35317299 PMCID: PMC8916606 DOI: 10.4317/jced.59309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/11/2022] [Indexed: 11/17/2022] Open
Abstract
Background Diagnosis of jaw cysts is challenging in general dental practice, and most cases are incidentally discovered through routine dental radiography. The aim of this study was to examine the epidemiology and treatment of odontogenic and non-odontogenic cysts to better understand the status of these lesions in populations in South Sulawesi, Indonesia.
Material and Methods This retrospective study was conducted on patients treated at four different hospitals in Makassar between January 2011 and June 2017. Patients diagnosed as having odontogenic or non-odontogenic cysts were included in the study. Information on variables such as sex, age, histopathological, and anatomical distributions was collected. Statistical analyses were performed using an independent T-test and the Pearson chi-square test (p< 0.05).
Results A total of 173 samples were collected, of which only 60 were histopathologically analyzed. The patients’ mean age was 30.3 years. The cysts occurred more frequently in women and in the anterior maxilla, followed by the posterior mandible. The radicular cyst was the most prevalent type, followed by the dentigerous cyst. Most cysts were treated with enucleation. Of the patients, 72.8% were followed up, of whom 3.2% had a recurrence and only 19.1% had complaints of clinical symptoms.
Conclusions Our findings indicate that odontogenic and non-odontogenic cysts widely vary in terms of incidence, with some exhibiting a predilection for specific ages and sites and specific sex. Knowledge of these factors could be useful for both clinicians and pathologists in the diagnosis and choice of the appropriate treatment plan. Key words:Cyst, epidemiology, odontogenic, non-odontogenic, treatment.
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Alkaabi SA, Kalla DSN, Alsabri GA, Fauzi A, Jansen N, Tajrin A, Nurrahma R, Müller W, Schröder HC, Xiaohong W, Forouzanfar T, Helder MN, Ruslin M. Safety and feasibility study of using polyphosphate (PolyP) in alveolar cleft repair: a pilot study. Pilot Feasibility Stud 2021; 7:199. [PMID: 34749808 PMCID: PMC8573762 DOI: 10.1186/s40814-021-00939-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 10/28/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Bone grafting is an important surgical procedure to reconstruct alveolar bone defects in patients with cleft lip and palate. Polyphosphate (PolyP) is a physiological polymer present in the blood, primarily in platelets. PolyP plays a role as a phosphate source in bone calcium phosphate deposition. Moreover, the cleavage of high-energy bonds to release phosphates provides local energy necessary for regenerative processes. In this study, polyP is complexed with calcium to form Calcium polyP microparticles (Ca-polyP MPs), which were shown to have osteoinductive properties in preclinical studies. The aim of this study was to evaluate the feasibility, safety, and osteoinductivity of Ca-polyP MPs, alone or in combination with BCP, in a first-in-human clinical trial. METHODS This single-blinded, parallel, prospective clinical pilot study enrolled eight adolescent patients (mean age 18.1: range 13-34 years) with residual alveolar bone cleft. Randomization in two groups (four receiving Ca-polyP MPs only, four a combination of Ca-polyP MPs and biphasic calcium phosphate (BCP)) was performed. Patient follow-up was 6 months. Outcome parameters included safety parameters and close monitoring of possible adverse effects using radiographic imaging, regular blood tests, and physical examinations. Osteoinductivity evaluation using histomorphometric analysis of biopsies was not possible due to COVID restrictions. RESULTS Due to surgical and feasibility reasons, eventually, only 2 patients received Ca-polyP MPs, and the others the combination graft. All patients were assessed up to day 90. Four out of eight were able to continue with the final assessment day (day 180). Three out of eight were unable to reach the hospital due to COVID-19 restrictions. One patient decided not to continue with the study. None of the patients showed any allergic reactions or any remarkable local or systematic side effects. Radiographically, patients receiving Ca-polyP MPs only were scored grade IV Bergland scale, while patients who got the BCP/Ca-polyP MPs combination had scores ranging from I to III. CONCLUSIONS Our results indicate that Ca-polyP MPs and the BCP/Ca-polyP MPs combination appear to be safe graft materials; however, in the current setting, Ca-polyP MPs alone may not be a sufficiently stable defect-filling scaffold to be used in alveolar cleft repair. TRIAL REGISTRATION Indonesian Trial Registry under number INA-EW74C1N by the ethical committee of Faculty of Medicine, Hasanuddin University, Makassar, Indonesia with code number 1063/UN4.6.4.5.31/PP36/2019 .
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Affiliation(s)
- Salem A Alkaabi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.
- Department of Oral and Maxillofacial Surgery, Fujairah Hospital, Ministry of Health, Fujairah, United Arab Emirates.
| | - Diandra Sabrina Natsir Kalla
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Biochemistry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Ghamdan A Alsabri
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Abul Fauzi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Nova Jansen
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Andi Tajrin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Rifaat Nurrahma
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Prosthodontic, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Werner Müller
- Institute for Physiological Chemistry, University Medical Center, University Mainz, Mainz, Germany
- Institute NanotecMARIN GmbH, Mainz, Germany
| | - Heinz C Schröder
- Institute for Physiological Chemistry, University Medical Center, University Mainz, Mainz, Germany
- Institute NanotecMARIN GmbH, Mainz, Germany
| | - Wang Xiaohong
- Institute for Physiological Chemistry, University Medical Center, University Mainz, Mainz, Germany
- Institute NanotecMARIN GmbH, Mainz, Germany
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia.
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Cavarra F, Boffano P, Brucoli M, Ruslin M, Forouzanfar T, Ridwan-Pramana A, Rodríguez-Santamarta T, de Vicente JC, Starch-Jensen T, Pechalova P, Pavlov N, Doykova I, Gospodinov D, Konstantinovic VS, Jovanović M, Barrabé A, Louvrier A, Meyer C, Tamme T, Andrianov A, Dovšak T, Birk A, Rocchetti V. Imaging of odontogenic keratocysts: a pictorial review. Minerva Dent Oral Sci 2021; 71:48-52. [PMID: 34636215 DOI: 10.23736/s2724-6329.21.04582-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION The aim of the present article was to review and depict the main radiological features of odontogenic keratocysts, thus helping the differential diagnoses from other odontogenic cysts and neoplasms. METHODS A review of articles published between January 2000 and October 2020 using Medline and the MeSH Term "odontogenic keratocyst" in combination with the following terms 'imaging,' 'radiology,' 'panoramic radiograph,' and 'computed tomography,' was performed. RESULTS Radiographically, OKCs are well-defined unilocular or multilocular radiolucencies bounded by corticated margins. Most lesions are unilocular; instead, multilocular OKCs represent about the 30% of cases, mainly involving the posterior mandible. When, particularly in large lesions, OKCs display a multilocular presentation with adjacent satellite cysts (daughter cysts) a "soap-bubble appearance" can be recognized. CONCLUSIONS Panoramic radiograph and CT still play an important role in the diagnosis and treatment planning of OKCs. Unfortunately, it may not be easy to differentiate OKCs from other odontogenic lesions, especially when they are small and unilocular. Histopathological findings are still necessary to obtain a definitive diagnosis.
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Affiliation(s)
| | - Paolo Boffano
- Division of Dentistry, Vercelli Hospital, Vercelli, Italy -
| | - Matteo Brucoli
- Division of Maxillofacial Surgery, University Hospital Maggiore della Carità, University of Eastern Piedmont, Novara, Italy
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Hasanuddin University, Makassar, Indonesia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | - Angela Ridwan-Pramana
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | | | - Juan Carlos de Vicente
- Servicio de Cirugía Maxilofacial, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Thomas Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg, Denmark
| | - Petia Pechalova
- Department of Oral surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Nikolai Pavlov
- Clinic of Maxillofacial surgery, University Hospital St. George, Plovdiv, Bulgaria
| | - Iva Doykova
- Department of Maxillofacial surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Dimitar Gospodinov
- Department of Oral surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | | | - Milan Jovanović
- School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Aude Barrabé
- Department of Oral and Maxillofacial Surgery, Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France
| | - Aurélien Louvrier
- Department of Oral and Maxillofacial Surgery, Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France.,University of Franche-Comté, INSERM, EFS BFC, UMR 1098 Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France
| | - Christophe Meyer
- Department of Oral and Maxillofacial Surgery, Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France.,University of Franche-Comté, EA 4662 Nanomedicine Lab Imagery and Therapeutics, Besançon, France
| | - Tiia Tamme
- Department of Stomatology, University of Tartu, Tartu, Estonia
| | | | - Tadej Dovšak
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
| | - Anže Birk
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
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Boffano P, Cavarra F, Agnone AM, Brucoli M, Ruslin M, Forouzanfar T, Ridwan-Pramana A, Rodríguez-Santamarta T, de Vicente JC, Starch-Jensen T, Pechalova P, Pavlov N, Doykova I, Gospodinov D, Konstantinovic VS, Jovanović M, Barrabé A, Louvrier A, Meyer C, Tamme T, Andrianov A, Dovšak T, Birk A, Masu L, Rocchetti V. The epidemiology and management of odontogenic keratocysts (OKCs): A European multicenter study. J Craniomaxillofac Surg 2021; 50:1-6. [PMID: 34625371 DOI: 10.1016/j.jcms.2021.09.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 09/13/2021] [Accepted: 09/30/2021] [Indexed: 11/16/2022] Open
Abstract
The objective of the present study was to assess the epidemiology including demographic variables, diagnostic features, and the management of odontogenic keratocyst (OKCs) at several European departments of maxillofacial and oral surgery. This study is based on a systematic computer-assisted database that allowed the recording of data from treated OKCs. The following data were recorded for each patient: gender, age, voluptuary habits, comorbidities, site, size, radiographic features, treatment of OKCs, length of hospital stay, complications, recurrence, management and complications of eventual recurrence. A total of 405 patients, 249 male and 156 female, with 415 OKCs (407 sporadic and 8 syndromic lesions) were included in the study: 320 lesions were found in the mandible, whereas 95 were found in the maxilla. In the mandible, the most frequently involved subsite was the angle, whereas in the maxilla it was the molar region. The most frequently performed treatment option was enucleation plus curettage/peripheral ostectomy in 204 OKCs (recurrence rate, 9%). Decompression without residual cystectomy (recurrence rate, 66%), marsupialization with residual enucleation with the use of Carnoy's solution (recurrence rate, 50%), decompression with residual cystectomy (recurrence rate, 43%), and simple enucleation (recurrence rate, 24%) were the treatment options with the highest recurrence rates. An appropriate management of odontogenic keratocysts should be individualized, taking into consideration clinical and radiological findings, as well as patients' age and comorbidities.
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Affiliation(s)
- Paolo Boffano
- Division of Dentistry, Vercelli Hospital, Vercelli, Italy.
| | | | | | - Matteo Brucoli
- Division of Maxillofacial Surgery, University Hospital "Maggiore Della Carità", University of Eastern Piedmont, Novara, Italy
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Hasanuddin University, Makassar, Indonesia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, the Netherlands
| | - Angela Ridwan-Pramana
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, the Netherlands
| | | | - Juan Carlos de Vicente
- Servicio de Cirugía Maxilofacial, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Thomas Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg, Denmark
| | - Petia Pechalova
- Department of Oral Surgery, Medical University of Plovdiv, Bulgaria
| | - Nikolai Pavlov
- Clinic of Maxillofacial Surgery, University Hospital "St. George", Plovdiv, Bulgaria
| | - Iva Doykova
- Department of Maxillofacial Surgery, Medical University of Plovdiv, Bulgaria
| | | | | | - Milan Jovanović
- School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Aude Barrabé
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon - France
| | - Aurélien Louvrier
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon - France; University of Franche-Comté, INSERM, EFS BFC, UMR 1098 Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, F-25000 Besançon - France
| | - Christophe Meyer
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon - France; University of Franche-Comté, EA 4662 Nanomedicine Lab Imagery and Therapeutics, F-25000 Besançon - France
| | - Tiia Tamme
- Department of Stomatology, University of Tartu, Estonia
| | | | - Tadej Dovšak
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
| | - Anže Birk
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
| | - Lavinia Masu
- Division of Pathology, Vercelli Hospital, Vercelli, Italy
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Boffano P, Cavarra F, Tricarico G, Masu L, Brucoli M, Ruslin M, Forouzanfar T, Ridwan-Pramana A, Rodríguez-Santamarta T, Rui Ranz M, de Vicente JC, Starch-Jensen T, Pechalova P, Pavlov N, Doykova I, Konstantinovic VS, Jelovac D, Barrabé A, Louvrier A, Meyer C, Tamme T, Andrianov A, Dovšak T, Birk A, Hresko A, Chepurnyi Y, Kopchak A, Snäll J, Hagström J, Rasmusson L, Rocchetti V. The epidemiology and management of ameloblastomas: A European multicenter study. J Craniomaxillofac Surg 2021; 49:1107-1112. [PMID: 34583885 DOI: 10.1016/j.jcms.2021.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 09/03/2021] [Accepted: 09/20/2021] [Indexed: 01/08/2023] Open
Abstract
The present study aimed at assessing the epidemiology including demographic variables, diagnostic features, and management of ameloblastomas at several European departments of maxillofacial and oral surgery. The following data were recorded for each patient: gender, age, voluptuary habits, comorbidities, site, size, radiographic features, type, histopathological features, kind of treatment, length of hospital stay, complications, recurrence, management and complications of the recurrence. A total of 244 patients, 134 males and 110 females with ameloblastomas were included in the study. Mean age was 47.4 years. In all, 81% of lesions were found in the mandible, whereas 19% were found in the maxilla. Mean size of included ameloblastomas was 38.9 mm. The most frequently performed treatment option was enucleation plus curettage/peripheral ostectomy in 94 ameloblastomas, followed by segmental resection (60 patients), simple enucleation (46 patients), and marginal resection (40 patients). A recurrence (with a mean follow up of 5 years) was observed in 47 cases out of 244 ameloblastomas (19.3%). Segmental resection was associated with a low risk of recurrence (p = 0003), whereas enucleation plus curettage/peripheral ostectomy was associated with a high risk of recurrence (p = 0002). A multilocular radiographic appearance was associated with a high risk of recurrence (p < .05), as well as the benign solid/multicystic histologic type (p < .05). Within the limitations of the study it seems that the management of ameloblastomas will probably remain controversial even in the future. Balancing low surgical morbidity with a low recurrence rate is a difficult aim to reach.
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Affiliation(s)
- Paolo Boffano
- Division of Dentistry, Vercelli Hospital, Vercelli, Italy.
| | | | | | - Lavinia Masu
- Division of Pathology, Vercelli Hospital, Vercelli, Italy
| | - Matteo Brucoli
- Division of Maxillofacial Surgery, University Hospital "Maggiore della Carità", University of Eastern Piedmont, Novara, Italy
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Hasanuddin University, Makassar, Indonesia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, the Netherlands
| | - Angela Ridwan-Pramana
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, the Netherlands
| | | | - Marta Rui Ranz
- Servicio de Cirugía Maxilofacial, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Juan Carlos de Vicente
- Servicio de Cirugía Maxilofacial, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Thomas Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg, Denmark
| | - Petia Pechalova
- Department of Oral Durgery, Faculty of Dental medicine, Medical University of Plovdiv, Bulgaria
| | - Nikolai Pavlov
- Clinic of Maxillofacial Surgery, University Hospital "St. George", Plovdiv, Bulgaria
| | - Iva Doykova
- Department of Maxillofacial Murgery, Faculty of Dental Sedicine, Medical University of Plovdiv, Bulgaria
| | | | - Drago Jelovac
- School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Aude Barrabé
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, France
| | - Aurélien Louvrier
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, France; University of Franche-Comté, INSERM, EFS BFC, UMR 1098 Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, 25000, Besançon, France
| | - Christophe Meyer
- Department of Oral and Maxillofacial Surgery - Hospital Dentistry Unit, University Hospital of Besançon, France; University of Franche-Comté, EA 4662 Nanomedicine Lab Imagery and Therapeutics, 25000, Besançon, France
| | - Tiia Tamme
- Department of Stomatology, University of Tartu, Estonia
| | | | - Tadej Dovšak
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
| | - Anže Birk
- Department of Maxillofacial and Oral Surgery of the University Medical Centre, Ljubljana, Slovenia
| | | | | | - Andrii Kopchak
- O. Bohomolets National Medical University, Kyiv, Ukraine
| | - Johanna Snäll
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jaana Hagström
- Department of Oral Pathology and Radiology, University of Turku, Turku, Finland; Department of Pathology, Helsinki University and Helsinki University Hospital, Helsinki, Finland
| | - Lars Rasmusson
- Department of Oral and Maxillofacial Surgery, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Alkaabi SA, Alsabri GA, NatsirKalla DS, Alavi SA, Mueller WEG, Forouzanfar T, Helder MN. A systematic review on regenerative alveolar graft materials in clinical trials: Risk of bias and meta-analysis. J Plast Reconstr Aesthet Surg 2021; 75:356-365. [PMID: 34642060 DOI: 10.1016/j.bjps.2021.08.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/16/2021] [Accepted: 08/26/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Alveolar cleft grafting is a necessary procedure to restore bone defects. Randomized clinical trials (RCTs) are regarded as a golden standard for investigating the efficacy of treatments. Nevertheless, risk of bias (RoB) can still affect the validity of these trials. We aimed to conduct a systemic review of all control trials (CTs) using regenerative materials for alveolar cleft reconstructions to evaluate their RoB and perform a meta-analysis of new bone formation. METHODS Cochrane Oral Health Group's Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (PubMed), EMBASE AND Google Scholar were searched up to October 2020. Thereafter, the articles underwent quality assessment (according to the Jadad scale and the Delphi list) for the evaluation of the RoB. RESULTS A total of 15 trials met the inclusion criteria, none of which reached a full score. Of these, 20% didn't randomize the trails, 73,33% failed to describe the way of randomization, and none reported the double-blinded criteria. Furthermore, allocation concealment (99.9%), intention to treat (100%), and patient awareness (100%) were inadequately described. The meta-analysis found no significant difference between regenerative materials and iliac crest graft. CONCLUSION This review showed high RoB in CTs implying quality improvement of CTs is necessary. Meta-analysis showed no significant difference between the regenerative materials and autogenous grafts.
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Affiliation(s)
- S A Alkaabi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands; Department of Oral and Maxillofacial Surgery, Fujairah Hospital, Ministry of Health, United Arab Emirates.
| | - G A Alsabri
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - D S NatsirKalla
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands; Department of Biochemistry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - S A Alavi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - W E G Mueller
- Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - M N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
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Minnema J, Wolff J, Koivisto J, Lucka F, Batenburg KJ, Forouzanfar T, van Eijnatten M. Comparison of convolutional neural network training strategies for cone-beam CT image segmentation. Comput Methods Programs Biomed 2021; 207:106192. [PMID: 34062493 DOI: 10.1016/j.cmpb.2021.106192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND AND OBJECTIVE Over the past decade, convolutional neural networks (CNNs) have revolutionized the field of medical image segmentation. Prompted by the developments in computational resources and the availability of large datasets, a wide variety of different two-dimensional (2D) and three-dimensional (3D) CNN training strategies have been proposed. However, a systematic comparison of the impact of these strategies on the image segmentation performance is still lacking. Therefore, this study aimed to compare eight different CNN training strategies, namely 2D (axial, sagittal and coronal slices), 2.5D (3 and 5 adjacent slices), majority voting, randomly oriented 2D cross-sections and 3D patches. METHODS These eight strategies were used to train a U-Net and an MS-D network for the segmentation of simulated cone-beam computed tomography (CBCT) images comprising randomly-placed non-overlapping cylinders and experimental CBCT images of anthropomorphic phantom heads. The resulting segmentation performances were quantitatively compared by calculating Dice similarity coefficients. In addition, all segmented and gold standard experimental CBCT images were converted into virtual 3D models and compared using orientation-based surface comparisons. RESULTS The CNN training strategy that generally resulted in the best performances on both simulated and experimental CBCT images was majority voting. When employing 2D training strategies, the segmentation performance can be optimized by training on image slices that are perpendicular to the predominant orientation of the anatomical structure of interest. Such spatial features should be taken into account when choosing or developing novel CNN training strategies for medical image segmentation. CONCLUSIONS The results of this study will help clinicians and engineers to choose the most-suited CNN training strategy for CBCT image segmentation.
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Affiliation(s)
- Jordi Minnema
- Department of Oral and Maxillofacial Surgery/Pathology, 3D Innovationlab, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HV, theNetherlands.
| | - Jan Wolff
- Fraunhofer Research Institution for Additive Manufacturing Technologies IAPT, Am Schleusengraben 13, Hamburg 21029, Germany; Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, Hamburg 20246, Germany; Department of Dentistry and Oral Health, Aarhus University, Vennelyst Boulevard 9, DK-8000 Aarhus C, Denmark
| | - Juha Koivisto
- Department of Physics, University of Helsinki, Helsinki 20560, Finland
| | - Felix Lucka
- Centrum Wiskunde & Informatica (CWI), Amsterdam 1090 GB, the Netherlands; University College London, London WC1E 6BT, United Kingdom
| | | | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, 3D Innovationlab, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HV, theNetherlands
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Cheng L, Lei X, Yang Z, Kong Y, Xu P, Peng S, Wang J, Chen C, Dong Y, Hu X, Zhang X, Forouzanfar T, Wu G, Fu X. Histatin 1 enhanced the speed and quality of wound healing through regulating the behaviour of fibroblast. Cell Prolif 2021; 54:e13087. [PMID: 34255393 PMCID: PMC8349656 DOI: 10.1111/cpr.13087] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/24/2021] [Accepted: 06/13/2021] [Indexed: 12/21/2022] Open
Abstract
Objectives Histatin 1(Hst 1) has been proved to promote wound healing. However, there was no specific study on the regulation made by Hst 1 of fibroblasts in the process of wound healing. This research comprehensively studied the regulation of Hst 1 on the function of fibroblasts in the process of wound healing and preliminary mechanism about it. Materials and methods The full‐thickness skin wound model was made on the back of C57/BL6 mice. The wound healing, collagen deposition and fibroblast distribution were detected on days 3, 5 and 7 after injury. Fibroblast was cultured in vitro and stimulated with Hst 1, and then, their biological characteristics and functions were detected. Results Histatin 1 can effectively promote wound healing, improve collagen deposition during and after healing and increase the number and function of fibroblasts. After healing, the mechanical properties of the skin also improved. In vitro, the migration ability of fibroblasts stimulated by Hst 1 was significantly improved, and the fibroblasts transformed more into myofibroblasts, which improved the function of contraction and collagen secretion. In fibroblasts, mTOR signalling pathway can be activated by Hst 1. Conclusions Histatin 1 can accelerate wound healing and improve the mechanical properties of healed skin by promoting the function of fibroblasts. The intermolecular mechanisms need to be further studied, and this study provides a direction about mTOR signalling pathway.
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Affiliation(s)
- Liuhanghang Cheng
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College, Beijing, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, China.,Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoxuan Lei
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije University Amsterdam (VU), Amsterdam Movement Science, Amsterdam, The Netherlands.,Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Zengjun Yang
- Department of Dermatology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yanan Kong
- Department of Plastic Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Pengcheng Xu
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Shiya Peng
- Department of Dermatology and Rheumatology Immunology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jue Wang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, The First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Cheng Chen
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, The First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Yunqing Dong
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China.,The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Xiaohong Hu
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, The First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, The First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije University Amsterdam (VU), Amsterdam Movement Science, Amsterdam, The Netherlands
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije University Amsterdam (VU), Amsterdam Movement Science, Amsterdam, The Netherlands.,Department of Oral Implantology and Prosthetic Dentistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, The Netherlands
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College, Beijing, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, China.,Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, Beijing, China
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Minnema J, van Eijnatten M, der Sarkissian H, Doyle S, Koivisto J, Wolff J, Forouzanfar T, Lucka F, Batenburg KJ. Efficient high cone-angle artifact reduction in circular cone-beam CT using deep learning with geometry-aware dimension reduction. Phys Med Biol 2021; 66. [PMID: 34107467 DOI: 10.1088/1361-6560/ac09a1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 06/09/2021] [Indexed: 11/11/2022]
Abstract
High cone-angle artifacts (HCAAs) appear frequently in circular cone-beam computed tomography (CBCT) images and can heavily affect diagnosis and treatment planning. To reduce HCAAs in CBCT scans, we propose a novel deep learning approach that reduces the three-dimensional (3D) nature of HCAAs to two-dimensional (2D) problems in an efficient way. Specifically, we exploit the relationship between HCAAs and the rotational scanning geometry by training a convolutional neural network (CNN) using image slices that were radially sampled from CBCT scans. We evaluated this novel approach using a dataset of input CBCT scans affected by HCAAs and high-quality artifact-free target CBCT scans. Two different CNN architectures were employed, namely U-Net and a mixed-scale dense CNN (MS-D Net). The artifact reduction performance of the proposed approach was compared to that of a Cartesian slice-based artifact reduction deep learning approach in which a CNN was trained to remove the HCAAs from Cartesian slices. In addition, all processed CBCT scans were segmented to investigate the impact of HCAAs reduction on the quality of CBCT image segmentation. We demonstrate that the proposed deep learning approach with geometry-aware dimension reduction greatly reduces HCAAs in CBCT scans and outperforms the Cartesian slice-based deep learning approach. Moreover, the proposed artifact reduction approach markedly improves the accuracy of the subsequent segmentation task compared to the Cartesian slice-based workflow.
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Affiliation(s)
- Jordi Minnema
- Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, 3D Innovationlab, Amsterdam Movement Sciences, 1081 HV Amsterdam, The Netherlands
| | - Maureen van Eijnatten
- Medical Image Analysis Group, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands.,Centrum Wiskunde & Informatica (CWI), 1090 GB Amsterdam, The Netherlands
| | | | - Shannon Doyle
- Centrum Wiskunde & Informatica (CWI), 1090 GB Amsterdam, The Netherlands
| | - Juha Koivisto
- Department of Physics, University of Helsinki, Gustaf Hällsströmin katu 2, FI-00560, Helsinki, Finland
| | - Jan Wolff
- Department of Oral and Maxillofacial Surgery, Division for Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, D-20246 Hamburg, Germany.,Fraunhofer Research Institution for Additive Manufacturing Technologies IAPT, Am Schleusengraben 13, D-21029 Hamburg, Germany.,Department of Dentistry and Oral Health, Aarhus University, Vennelyst Boulevard 9, DK-8000 Aarhus C, Denmark
| | - Tymour Forouzanfar
- Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, 3D Innovationlab, Amsterdam Movement Sciences, 1081 HV Amsterdam, The Netherlands
| | - Felix Lucka
- Centrum Wiskunde & Informatica (CWI), 1090 GB Amsterdam, The Netherlands.,Centre for Medical Image Computing, University College London, WC1E 6BT London, United Kingdom
| | - Kees Joost Batenburg
- Centrum Wiskunde & Informatica (CWI), 1090 GB Amsterdam, The Netherlands.,Leiden Institute of Advanced Computer Science (LIACS), Leiden University, 2333 CA Leiden, The Netherlands
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Alkaabi SA, Natsir Kalla DS, Alsabri GA, Fauzi A, Tajrin A, Müller WEG, Schröder HC, Wang XG, Forouzanfar T, Helder MN, Ruslin M. Polyphosphate (PolyP) for alveolar cleft repair: study protocol for a pilot randomized controlled trial. Trials 2021; 22:393. [PMID: 34127045 PMCID: PMC8201927 DOI: 10.1186/s13063-021-05325-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/12/2021] [Indexed: 01/17/2023] Open
Abstract
Objective Bone grafting is an important surgical procedure to restore missing bone in patients with alveolar cleft lip/palate, aiming to stabilize either sides of the maxillary segments by inducing new bone formation, and in bilateral cleft cases also to stabilize the pre-maxilla. Polyphosphate (PolyP), a physiological polymer composed of orthophosphate units linked together with high-energy phosphate bonds, is a naturally existing compound in platelets which, when complexed with calcium as Ca-polyP microparticles (Ca-polyP MPs), was proven to have osteoinductive properties in preclinical studies. Aim To evaluate the feasibility, safety, and osteoinductivity of Ca-polyP MPs as a bone-inducing graft material in humans. Methods This prospective non-blinded first-in-man clinical pilot study shall consist of 8 alveolar cleft patients of 13 years or older to evaluate the feasibility and safety of Ca-PolyP MPs as a bone-inducing graft material. Patients will receive Ca-polyP graft material only or Ca-polyP in combination with biphasic calcium phosphate (BCP) as a bone substitute carrier. During the trial, the participants will be investigated closely for safety parameters using radiographic imaging, regular blood tests, and physical examinations. After 6 months, a hollow drill will be used to prepare the implantation site to obtain a biopsy. The radiographic imaging will be used for clinical evaluation; the biopsy will be processed for histological/histomorphometric evaluation of bone formation. Discussion This is the first-in-man study evaluating the safety and feasibility of the polyP as well as the potential regenerative capacity of polyP using an alveolar cleft model. Trial registration Indonesian Trial Registry INA-EW74C1N. Registered on 12 June 2020
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Affiliation(s)
- S A Alkaabi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Oral and Maxillofacial Surgery, Al Kuwait Hospital, Ministry of Health, Dubai, United Arab Emirates
| | - D S Natsir Kalla
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Biochemistry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - G A Alsabri
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - A Fauzi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia
| | - A Tajrin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia
| | - W E G Müller
- Institut für Physiologische Chemie, Angewandte Molekularbiologie, Universitätsmedizin, Johannes Gutenberg-Universität Mainz, Mainz, Germany.,NanotecMARIN GmbH, Mainz, Germany
| | - H C Schröder
- Institut für Physiologische Chemie, Angewandte Molekularbiologie, Universitätsmedizin, Johannes Gutenberg-Universität Mainz, Mainz, Germany.,NanotecMARIN GmbH, Mainz, Germany
| | - X G Wang
- Institut für Physiologische Chemie, Angewandte Molekularbiologie, Universitätsmedizin, Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia
| | - M N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia
| | - M Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia.
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Abstract
Accurate segmentation of the jaw (i.e., mandible and maxilla) and the teeth in cone beam computed tomography (CBCT) scans is essential for orthodontic diagnosis and treatment planning. Although various (semi)automated methods have been proposed to segment the jaw or the teeth, there is still a lack of fully automated segmentation methods that can simultaneously segment both anatomic structures in CBCT scans (i.e., multiclass segmentation). In this study, we aimed to train and validate a mixed-scale dense (MS-D) convolutional neural network for multiclass segmentation of the jaw, the teeth, and the background in CBCT scans. Thirty CBCT scans were obtained from patients who had undergone orthodontic treatment. Gold standard segmentation labels were manually created by 4 dentists. As a benchmark, we also evaluated MS-D networks that segmented the jaw or the teeth (i.e., binary segmentation). All segmented CBCT scans were converted to virtual 3-dimensional (3D) models. The segmentation performance of all trained MS-D networks was assessed by the Dice similarity coefficient and surface deviation. The CBCT scans segmented by the MS-D network demonstrated a large overlap with the gold standard segmentations (Dice similarity coefficient: 0.934 ± 0.019, jaw; 0.945 ± 0.021, teeth). The MS-D network–based 3D models of the jaw and the teeth showed minor surface deviations when compared with the corresponding gold standard 3D models (0.390 ± 0.093 mm, jaw; 0.204 ± 0.061 mm, teeth). The MS-D network took approximately 25 s to segment 1 CBCT scan, whereas manual segmentation took about 5 h. This study showed that multiclass segmentation of jaw and teeth was accurate and its performance was comparable to binary segmentation. The MS-D network trained for multiclass segmentation would therefore make patient-specific orthodontic treatment more feasible by strongly reducing the time required to segment multiple anatomic structures in CBCT scans.
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Affiliation(s)
- H Wang
- Department of Oral and Maxillofacial Surgery/Pathology, 3D Innovation Lab, Amsterdam Movement Sciences, Amsterdam UMC, Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - J Minnema
- Department of Oral and Maxillofacial Surgery/Pathology, 3D Innovation Lab, Amsterdam Movement Sciences, Amsterdam UMC, Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - K J Batenburg
- Centrum Wiskunde and Informatica, Amsterdam, the Netherlands
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, 3D Innovation Lab, Amsterdam Movement Sciences, Amsterdam UMC, Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - F J Hu
- Institute of Information Technology, Zhejiang Shuren University, Hangzhou, China
| | - G Wu
- Department of Oral and Maxillofacial Surgery/Pathology, 3D Innovation Lab, Amsterdam Movement Sciences, Amsterdam UMC, Academic Centre for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.,Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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42
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Al-Jamaei AAH, van Dijk BAC, Helder MN, Forouzanfar T, Leemans CR, de Visscher JGAM. A population-based study of the epidemiology of oral squamous cell carcinoma in the Netherlands 1989-2018, with emphasis on young adults. Int J Oral Maxillofac Surg 2021; 51:18-26. [PMID: 33773877 DOI: 10.1016/j.ijom.2021.03.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/28/2021] [Accepted: 03/09/2021] [Indexed: 12/24/2022]
Abstract
There has been an increasing trend in oral squamous cell carcinoma (OSCC) in patients under 45 years of age. The aim of this study was to evaluate the burden of OSCC in the Netherlands between 1989 and 2018 among young adults (age 20-34 years) when compared to adults (age 35-44 years), and to describe the burden in older groups as well, utilizing cancer registry data to characterize incidence patterns by age, sex, and risk factors. A total of 18,963 cases of OSCC were reported. The overall incidence rate, as measured by annual percentage change (APC), increased significantly from 1989 to 2010 by 1.3% per year (95% confidence interval (CI) 0.9-1.7%) but decreased thereafter by -0.9% (95% CI -2.5% to 0.7%). Annual incidence increased significantly by 2.4% (95% CI 1.1-3.8%) for patients aged 20-34 years, while it decreased for those aged 35-44 years by -0.9% (95% CI -1.7% to 0.0%). In patients older than 60 years, incidence rates increased overall (60-74 years: APC 1.8%, 95% CI 1.5-2.1%; ≥75 years: APC 1.5%, 95% CI 1.2-1.9%). Overall, 66.5% of patients were smokers and 65.3% were alcohol consumers. The marked differences in incidence within the young age subgroups warrants further investigation to elucidate any likely disparity in biological process and clinical outcomes in these populations.
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Affiliation(s)
- A A H Al-Jamaei
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUMC/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - B A C van Dijk
- Netherlands Comprehensive Cancer Organization (IKNL), Department of Research and Development, Utrecht, The Netherlands; Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M N Helder
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUMC/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUMC/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - C R Leemans
- Department of Otolaryngology-Head and Neck Surgery, Amsterdam UMC-location VUMC, Amsterdam, The Netherlands
| | - J G A M de Visscher
- Department of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam UMC-location VUMC/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands.
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43
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Hresko A, Burtyn O, Pavlovskiy L, Snisarevskyi P, Lapshyna J, Chepurnyi Y, Kopchak A, Karagozoglu KH, Forouzanfar T. Controversies in ameloblastoma management: evaluation of decision making, based on a retrospective analysis. Med Oral Patol Oral Cir Bucal 2021; 26:e181-e186. [PMID: 33037802 PMCID: PMC7980285 DOI: 10.4317/medoral.24104] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/24/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The ameloblastoma management is still challenging to the high recurrence rates and significant morbidity associated with radical treatment. The purpose of this 10-year retrospective study was to analyze the influence of ameloblastoma type and treatment strategy on the long-term outcomes and recurrence rates. MATERIAL AND METHODS The retrospective analyses of 64 histologically-confirmed ameloblastoma cases was performed. The possible risk factors for recurrence and the development of complications were estimated statistically. RESULTS The treatment strategy applied for this group of patients was the following: thirty-four patients (53.1%) were treated conservatively with enucleation or extended bone curettage. Radical treatment (bone resection) was applied in 30 (46.9%) cases. The follow-up period ranged from 2 to 10 years (mean value 4.28 ± 3,26). General recurrence rate consisted 32.8%. This study did not find significant correlations between clinical or histopathological features of the ameloblastoma and the recurrence rate. The only factor that significantly influence recurrence rate was the treatment strategy (41% in conservative treatment vs 15% in radical treatment, p<0.05). Postoperative complications were observed in 42 patients (65.6%) and included face asymmetry and disfigurement (17.2%), temporary paresthesia of the inferior alveolar nerve (IAN) - 23.4%, permanent paresthesia of IAN - 20.3%, paresis of a marginal branch of the facial nerve - 6.3%, infection 12.5%, and swelling - 20.3%. The complication rates, esthetic and functional deficiency were significantly higher in radically treated patients (p<0.05) Conclusions: Our study confirms that higher recurrence rate is associated with conservative treatment for ameloblastoma, while radical treatment leads to an increased number of postoperative complications that affect the patient's quality of life.
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Affiliation(s)
- A Hresko
- Centre of maxillo-facial surgery and dentistry Kyiv regional clinical hospital Sholudenka street, 1A, ap 45. 04116, Kyiv, Ukraine
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44
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Tan CXW, Brand HS, Kalender B, De Boer NKH, Forouzanfar T, de Visscher JGAM. Dental and periodontal disease in patients with inflammatory bowel disease. Clin Oral Investig 2021; 25:5273-5280. [PMID: 33619633 PMCID: PMC8370899 DOI: 10.1007/s00784-021-03835-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 02/08/2021] [Indexed: 02/07/2023]
Abstract
Objectives Although bowel symptoms are often predominant, inflammatory bowel disease (IBD) patients can have several oral manifestations. The aim of this study was to investigate the prevalence of dental caries and periodontal disease in patients with Crohn’s disease (CD) and ulcerative colitis (UC) compared to an age and gender-matched control group of patients without IBD. Material and methods The DMFT (Decayed, Missing, Filled Teeth) scores and the DPSI (Dutch Periodontal Screening Index) of 229 IBD patients were retrieved from the electronic health record patient database axiUm at the Academic Centre for Dentistry Amsterdam (ACTA) and were compared to the DMFT scores and DPSI from age and gender-matched non-IBD patients from the same database. Results The total DMFT index was significantly higher in the IBD group compared to the control group. When CD and UC were analyzed separately, a statistically significant increased DMFT index was observed in CD patients but not in UC patients. The DPSI did not differ significantly between the IBD and non-IBD groups for each of the sextants. However, in every sextant, IBD patients were more frequently edentulous compared to the control patients. Conclusion CD patients have significantly more dental health problems compared to a control group. Periodontal disease did not differ significantly between IBD and non-IBD groups as determined by the DPSI. Clinical relevance It is important that IBD patients and physicians are instructed about the correlation between their disease and oral health problems. Strict oral hygiene and preventive dental care such as more frequent checkups should be emphasized by dental clinicians.
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Affiliation(s)
- Christopher X W Tan
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), PO Box 7057, 1007 MB, Amsterdam, The Netherlands.
| | - Henk S Brand
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Bilgin Kalender
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Nanne K H De Boer
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centre, VU University, AGEM Research Institute, Amsterdam, The Netherlands
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), PO Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - Jan G A M de Visscher
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), PO Box 7057, 1007 MB, Amsterdam, The Netherlands
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45
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van Baar GJC, Leeuwrik L, Lodders JN, Liberton NPTJ, Karagozoglu KH, Forouzanfar T, Leusink FKJ. A Novel Treatment Concept for Advanced Stage Mandibular Osteoradionecrosis Combining Isodose Curve Visualization and Nerve Preservation: A Prospective Pilot Study. Front Oncol 2021; 11:630123. [PMID: 33692960 PMCID: PMC7937888 DOI: 10.3389/fonc.2021.630123] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/05/2021] [Indexed: 11/13/2022] Open
Abstract
Background Osteoradionecrosis (ORN) of the mandible is a severe complication of radiation therapy in head and neck cancer patients. Treatment of advanced stage mandibular osteoradionecrosis may consist of segmental resection and osseous reconstruction, often sacrificing the inferior alveolar nerve (IAN). New computer-assisted surgery (CAS) techniques can be used for guided IAN preservation and 3D radiotherapy isodose curve visualization for patient specific mandibular resection margins. This study introduces a novel treatment concept combining these CAS techniques for treatment of advanced stage ORN. Methods Our advanced stage ORN treatment concept includes consecutively: 1) determination of the mandibular resection margins using a 3D 50 Gy isodose curve visualization, 2) segmental mandibular resection with preservation of the IAN with a two-step cutting guide, and 3) 3D planned mandibular reconstruction using a hand-bent patient specific reconstruction plate. Postoperative accuracy of the mandibular reconstruction was evaluated using a guideline. Objective and subjective IAN sensory function was tested for a period of 12 months postoperatively. Results Five patients with advanced stage ORN were treated with our ORN treatment concept using the fibula free flap. A total of seven IANs were salvaged in two men and three women. No complications occurred and all reconstructions healed properly. Neither non-union nor recurrence of ORN was observed. Sensory function of all IANs recovered after resection up to 100 percent, including the patients with a pathologic fracture due to ORN. The accuracy evaluation showed angle deviations limited to 3.78 degrees. Two deviations of 6.42° and 7.47° were found. After an average of 11,6 months all patients received dental implants to complete oral rehabilitation. Conclusions Our novel ORN treatment concept shows promising results for implementation of 3D radiotherapy isodose curve visualization and IAN preservation. Sensory function of all IANs recovered after segmental mandibular resection.
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Affiliation(s)
- Gustaaf J C van Baar
- Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam, Netherlands
| | - Lars Leeuwrik
- Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam, Netherlands
| | - Johannes N Lodders
- Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam, Netherlands
| | - Niels P T J Liberton
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Technology, 3D Innovation Lab, Amsterdam, Netherlands
| | - K Hakki Karagozoglu
- Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam, Netherlands
| | - Tymour Forouzanfar
- Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam, Netherlands
| | - Frank K J Leusink
- Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam, Netherlands
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46
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Do W, Elzerman T, de Bree R, Rosenberg A, Forouzanfar T, Van Cann EM. Is low or high body mass index in patients operated for oral squamous cell carcinoma associated with the perioperative complication rate? Int J Oral Maxillofac Surg 2020; 50:591-597. [PMID: 32861557 DOI: 10.1016/j.ijom.2020.07.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 05/25/2020] [Accepted: 07/22/2020] [Indexed: 10/23/2022]
Abstract
The aim of this study was to analyse the effect of body mass index (BMI), both low and high values, on the perioperative complication rate in patients with oral squamous cell carcinoma (OSCC). The medical records of 259 patients operated between 2014 and 2017 for OSCC were reviewed. Univariate and multivariate analyses were performed. Sixty of the 259 patients developed 87 complications. Low or high BMI was not associated with the perioperative complication rate. A longer operating time and increased blood loss were associated with a higher perioperative complication rate and higher Clavien-Dindo grade. Low BMI, American Society of Anesthesiologists score 2 and 3, a longer operating time, and increased blood loss were associated with a longer hospital stay. Low BMI was associated with a longer hospital stay. Neither low nor high BMI was associated with the perioperative complication rate. A longer operating time and increased blood loss were associated with a higher perioperative complication rate and higher Clavien-Dindo grade.
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Affiliation(s)
- W Do
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center/Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, the Netherlands; Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, the Netherlands
| | - T Elzerman
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center/Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, the Netherlands; Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, the Netherlands
| | - R de Bree
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, the Netherlands
| | - A Rosenberg
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, the Netherlands
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center/Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, the Netherlands
| | - E M Van Cann
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center/Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, the Netherlands; Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, the Netherlands.
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47
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Lei X, Cheng L, Lin H, Pang M, Yao Z, Chen C, Forouzanfar T, Bikker FJ, Wu G, Cheng B. Human Salivary Histatin-1 Is More Efficacious in Promoting Acute Skin Wound Healing Than Acellular Dermal Matrix Paste. Front Bioeng Biotechnol 2020; 8:999. [PMID: 32974320 PMCID: PMC7466576 DOI: 10.3389/fbioe.2020.00999] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 07/31/2020] [Indexed: 02/04/2023] Open
Abstract
A rapid wound healing is beneficial for not only recovering esthetics but also reducing pain, complications and healthcare burdens. For such a purpose, continuous efforts have been taken to develop viable dressing material. Acellular dermal matrix (ADM) paste has been used to repair burn wounds and is shown to promote angiogenesis as well as fibroblast attachment and migration. However, its efficacy still needs to be significantly improved to meet clinical demands for accelerating acute skin wound healing. To approach this problem, we studied the added value of a human salivary peptide - Histatin 1 (Hst1). Hst1 was chosen because of its potency to promote the adhesion, spreading, migration, metabolic activity and cell-cell junction of major skin cells and endothelial cells. In this study, we hypothesized that ADM paste and Hst1 showed a better effect on the healing of surgically created acute skin wounds in mice since ADM paste may act as a slow release system for Hst1. Our results showed that the healing efficacy of 10 μM topically administrated Hst1 was significantly higher compared to the control (no Hst1, no ADM) from day 3 to day 10 post-surgery. In contrast, ADM alone failed in our system at all time points. Also, the combination of ADM paste and Hst1 did not show a better effect on percentage of wound healing. Histological analysis showed that 10 μM Hst1 was associated with maximal thickness of newly formed epidermal layer on day 7 as well as the largest collagen area on day 14. In addition, immunohistochemical staining showed that the number of CD31-positive blood vessels in the group of 10 μM Hst1 was 2.3 times compared to the control. The vascular endothelial growth factor (VEGF) expression in the groups of 10 μM Hst1 group and ADM + 10 μM Hst1 group was significantly higher compared with the control group. Furthermore, 10 μM Hst1 group was associated with significantly lower levels of CD68-positive macrophage number, interleukin-1β (IL-1β) expression and C-reactive protein (CRP) expression than those of the other groups (control, ADM alone and ADM + 10 μM Hst1). In contrast, ADM was only associated with significantly lower CD68-positive macrophage number and IL-1β expression in comparison with the control. The co-administration of Hst1 and ADM paste did not yield more beneficial effects than Hst1 alone. In conclusion, the topically administrated of 10 μM Hst1 could be a promising alternative dressing in managing acute wound healing.
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Affiliation(s)
- Xiaoxuan Lei
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science, Amsterdam, Netherlands
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Liuhanghang Cheng
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science, Amsterdam, Netherlands
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Haiyan Lin
- Savaid Stomatology School, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Mengru Pang
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Zexin Yao
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Caihong Chen
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science, Amsterdam, Netherlands
| | - Floris J. Bikker
- Department of Oral Biochemistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, Netherlands
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science, Amsterdam, Netherlands
- Department of Oral Implantology and Prosthetic Dentistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, Netherlands
| | - Biao Cheng
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
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Tan CXW, Brand HS, Iqbal S, De Boer NKH, Forouzanfar T, de Visscher JGAM. A self-reported survey on oral health problems in patients with inflammatory bowel disease with a stoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 130:e80-e86. [PMID: 32601008 DOI: 10.1016/j.oooo.2020.04.816] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 04/06/2020] [Accepted: 04/27/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVES Patients with inflammatory bowel disease have an increased risk of developing oral health problems. The aim of this study was to investigate whether oral diseases in these patients are related to inflammation of the intestine and if there is a correlation between inflammatory bowel disease-specific health-related quality of life (IBD-HR-QOL) and oral health problems. STUDY DESIGN The study was a cross-sectional survey and analysis of self-reported oral health of individuals with a stoma for Crohn's disease (CD), ulcerative colitis (UC), and treated colon cancer (CC). Validated international questionnaires were sent to members of the Stoma Federation of The Netherlands. Because there was an unequal distribution of male and female patients with CD and CC, data of 169 age-matched female patients with CD, UC, and CC with a stoma were analyzed. RESULTS Patients with CD had significantly more oral health problems compared with those with UC or CC. Patients with CD and UC both had significantly more gingival-related problems compared with patients with CC. There was a significant negative correlation between IBD-HR-QOL and oral health problems. CONCLUSIONS In the 3 distinguishable groups of patients with a stoma, patients with CD had an increased risk for oral health problems, independently from surgical removal of (a part of) the inflamed intestine, suggesting a general increased susceptibility of patients with CD for oral health problems.
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Affiliation(s)
- Christopher X W Tan
- Departments of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands.
| | - Henk S Brand
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Sumaira Iqbal
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Nanne K H De Boer
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centre, VU University, AG&M Research Institute, Amsterdam, The Netherlands
| | - Tymour Forouzanfar
- Departments of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Jan G A M de Visscher
- Departments of Oral and Maxillofacial Surgery and Oral Pathology, Amsterdam University Medical Centre/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
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van Baar GJC, Liberton NPTJ, Winters HAH, Leeuwrik L, Forouzanfar T, Leusink FKJ. A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible. J Vis Exp 2020. [PMID: 32065152 DOI: 10.3791/60363] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Valid comparisons of postoperative accuracy results in computer-assisted reconstruction of the mandible are difficult due to heterogeneity in imaging modalities, mandibular defect classification, and evaluation methodologies between studies. This guideline uses a step-by-step approach guiding the process of imaging, classification of mandibular defects and volume assessment of three-dimensional (3D) models, after which a legitimized quantitative accuracy evaluation method can be performed between the postoperative clinical situation and the preoperative virtual plan. The condyles and the vertical and horizontal corners of the mandible are used as bony landmarks to define virtual lines in the computer-assisted surgery (CAS) software. Between these lines the axial, coronal, and both sagittal mandibular angles are calculated on both pre- and postoperative 3D models of the (neo)mandible and subsequently the deviations are calculated. By superimposing the postoperative 3D model to the preoperative virtually planned 3D model, which is fixed to the XYZ axis, the deviation between pre- and postoperative virtually planned dental implant positions can be calculated. This protocol continues and specifies an earlier publication of this evaluation guideline.
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Affiliation(s)
- Gustaaf J C van Baar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam;
| | - Niels P T J Liberton
- Medical Technology, 3D Innovation Lab, Amsterdam UMC, Vrije Universiteit Amsterdam
| | - Henri A H Winters
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC, Vrije Universiteit Amsterdam
| | - Lars Leeuwrik
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam
| | - Frank K J Leusink
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam
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Brucoli M, Boffano P, Romeo I, Corio C, Benech A, Ruslin M, Forouzanfar T, Starch-Jensen T, Rodríguez-Santamarta T, de Vicente JC, Snäll J, Thorén H, Tarle M, Dediol E, Pechalova P, Pavlov N, Daskalov H, Doykova I, Kelemith K, Tamme T, Kopchak A, Shumynskyi I, Corre P, Bertin H, Goguet Q, Anquetil M, Louvrier A, Meyer C, Dovšak T, Vozlič D, Birk A, Aničić B, Konstantinovic VS. Management of maxillofacial trauma in the elderly: A European multicenter study. Dent Traumatol 2020; 36:241-246. [PMID: 31863620 DOI: 10.1111/edt.12536] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/14/2019] [Accepted: 12/16/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND/AIMS Management of maxillofacial trauma in the geriatric population poses a great challenge due to anatomical variations and medical comorbidities. The aim of this study was to analyze the management variables, timing, and outcomes of facial fractures in elderly patients (aged 70 years or more) at several European departments of oral and maxillofacial surgery. MATERIALS AND METHODS This study was based on a systematic computer-assisted database that allowed the recording of data from all geriatric patients with facial fractures from the involved maxillofacial surgical units across Europe between 2013 and 2017. RESULTS A total of 1334 patients were included in the study: 665 patients underwent closed or open surgical treatment. A significant association (P < .005) was found between the presence of concomitant injuries and a prolonged time between hospital admission and treatment. The absence of indications to treatment was associated with comorbidities and an older age (P < .000005). CONCLUSIONS Elderly patients require specific attention and multidisciplinary collaboration in the diagnosis and sequencing of trauma treatment. A prudent attitude may be kept in selected cases, especially when severe comorbidities are associated and function is not impaired.
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Affiliation(s)
- Matteo Brucoli
- Division of Maxillofacial Surgery, University Hospital "Maggiore della Carità", University of Eastern Piedmont, Novara, Italy
| | - Paolo Boffano
- Division of Maxillofacial Surgery, University Hospital "Maggiore della Carità", University of Eastern Piedmont, Novara, Italy
| | - Irene Romeo
- Division of Maxillofacial Surgery, University Hospital "Maggiore della Carità", University of Eastern Piedmont, Novara, Italy
| | - Chiara Corio
- Division of Maxillofacial Surgery, University Hospital "Maggiore della Carità", University of Eastern Piedmont, Novara, Italy
| | - Arnaldo Benech
- Division of Maxillofacial Surgery, University Hospital "Maggiore della Carità", University of Eastern Piedmont, Novara, Italy
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Hasanuddin University, Makassar, Indonesia
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | - Thomas Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg, Denmark
| | | | - Juan Carlos de Vicente
- Servicio de Cirugía Maxilofacial, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Johanna Snäll
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Hanna Thorén
- Department of Oral and Maxillofacial Surgery, Institute of Dentistry, University of Turku, Turku, Finland.,Department of Oral and Maxillofacial Diseases, Turku University Hospital, Turku, Finland
| | - Marko Tarle
- Department of Maxillofacial Surgery, University Hospital Dubrava, Zagreb, Croatia
| | - Emil Dediol
- Department of Maxillofacial Surgery, University Hospital Dubrava, Zagreb, Croatia
| | - Petia Pechalova
- Department of Oral surgery, Faculty of Dental Medicine, Medical University, Plovdiv, Bulgaria
| | | | - Hristo Daskalov
- Department of Oral surgery, Faculty of Dental Medicine, Medical University, Plovdiv, Bulgaria
| | - Iva Doykova
- Department of maxillofacial surgery, Faculty of Dental Medicine, Medical University, Plovdiv, Bulgaria
| | - Kadri Kelemith
- Department of maxillo-facial surgery, North Estonia Medical Centre Foundation, Tallinn, Estonia
| | - Tiia Tamme
- Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Andrey Kopchak
- Stomatological Medical Center, Bogomolets National Medical University, Kyiv, Ukraine
| | - Ievgen Shumynskyi
- Kyiv City Clinical Emergency Hospital, Bogomolets National Medical University, Kyiv, Ukraine
| | - Pierre Corre
- Division of Maxillofacial Surgery, Nantes, France
| | | | | | | | - Aurélien Louvrier
- Department of Oral and Maxillofacial Surgery, Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France.,EA 4662 Nanomedicine Lab Imagery and Therapeutics, University of Bourgogne, Besançon, France
| | - Christophe Meyer
- Department of Oral and Maxillofacial Surgery, Hospital Dentistry Unit, University Hospital of Besançon, Besançon, France.,EA 4662 Nanomedicine Lab Imagery and Therapeutics, University of Bourgogne, Besançon, France
| | - Tadej Dovšak
- Department of Maxillofacial and Oral Surgery, University Medical Centre, Ljubljana, Slovenia
| | - David Vozlič
- Department of Maxillofacial and Oral Surgery, University Medical Centre, Ljubljana, Slovenia
| | - Anže Birk
- Department of Maxillofacial and Oral Surgery, University Medical Centre, Ljubljana, Slovenia
| | - Boban Aničić
- Department of Maxillofacial Surgery, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Vitomir S Konstantinovic
- Department of Maxillofacial Surgery, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
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