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Kusuvan P, Leepong N, Suttapreyasri S. Influence of freeze-dried bone allograft on free gingival graft survival and alveolar ridge maintenance in socket seal procedures: a randomized controlled clinical trial. Oral Maxillofac Surg 2024:10.1007/s10006-024-01262-x. [PMID: 38789863 DOI: 10.1007/s10006-024-01262-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/19/2024] [Indexed: 05/26/2024]
Abstract
PURPOSE This study aimed to investigate the viability of free gingival grafts (FGG) and assess clinical and radiographic changes in the alveolar ridge following socket seal surgery with or without freeze-dried bone allograft (FDBA). MATERIALS AND METHODS Twenty-eight anterior and premolar tooth extractions were randomly allocated to 2 groups: socket graft of FDBA sealed with FGG (n = 15) and control with empty sockets sealed solely with FGG (n = 13). Photographs taken at 3, 7, 14, and 30 days post-surgery assessed FGG viability. Alveolar ridge volume was clinically evaluated via intraoral scanners before surgery and at 1 and 3 months post-surgery. CBCT scans taken immediately post-surgery and 3 months later assessed alveolar ridge dimensions. RESULTS FGG viability in both groups increased from day 3 and reached the maximum score on day 14. Alveolar ridge volume reduction at 3 months in the FDBA group was comparable to the control group. Buccal alveolar bone height reduction was significantly higher in the FDBA group than the control group, while palatal alveolar bone height was comparable. Alveolar bone width reduction was evident but not statistically significant between the groups. The FDBA group exhibited a significant alteration in bone volume compared to the control group. CONCLUSION Viability of FGG was not affected by graft filling materials. Sealing the socket with FGG effectively preserved socket integrity and ridge volume in minor socket defects using either graft filling material or not. This study was registered on 4 January 2021 on Thai Clinical Trials Registry (TCTR20210104001).
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Affiliation(s)
- Pitcha Kusuvan
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Narit Leepong
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Srisurang Suttapreyasri
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
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Khubchandani SR, Dahane T, Dubey SA. Osseodensification: An Innovative Technique With Manifold Gains. Cureus 2024; 16:e60255. [PMID: 38872641 PMCID: PMC11170060 DOI: 10.7759/cureus.60255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 05/14/2024] [Indexed: 06/15/2024] Open
Abstract
Prosthodontics, which is removable and fixed, is the branch dealing with the replacement of missing teeth. Implant therapy is the popular treatment modality and commonly preferred treatment option by many patients and clinicians for missing teeth in recent years. Primary implant stability (PIS) is one of the crucial factors for osseointegration. It has been considered a crucial factor in the success of implants. Moreover, several factors influence PIS. On the other hand, both secondary implant stability and osseointegration are influenced by the PIS. Bone density, bone volume, bone-to-implant contact, and other factors that enhance or degrade the primary stability. Certain host sites such as the maxillary posterior region demand more dense bone to achieve desired results as they are the low-density areas of the jaw. So, a new promising and growing innovative concept of osseodensification (OD) offers a great solution with multiple benefits and desirable results. This review article aims to enlighten the multiple benefits of OD technique and their mechanism of action.
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Affiliation(s)
- Sheetal R Khubchandani
- Prosthodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Trupti Dahane
- Prosthodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Surekha A Dubey
- Prosthodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Xu X, Wang J, Xia Y, Yin Y, Zhu T, Chen F, Hai C. Autophagy, a double-edged sword for oral tissue regeneration. J Adv Res 2024; 59:141-159. [PMID: 37356803 PMCID: PMC11081970 DOI: 10.1016/j.jare.2023.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/10/2023] [Accepted: 06/20/2023] [Indexed: 06/27/2023] Open
Abstract
BACKGROUND Oral health is of fundamental importance to maintain systemic health in humans. Stem cell-based oral tissue regeneration is a promising strategy to achieve the recovery of impaired oral tissue. As a highly conserved process of lysosomal degradation, autophagy induction regulates stem cell function physiologically and pathologically. Autophagy activation can serve as a cytoprotective mechanism in stressful environments, while insufficient or over-activation may also lead to cell function dysregulation and cell death. AIM OF REVIEW This review focuses on the effects of autophagy on stem cell function and oral tissue regeneration, with particular emphasis on diverse roles of autophagy in different oral tissues, including periodontal tissue, bone tissue, dentin pulp tissue, oral mucosa, salivary gland, maxillofacial muscle, temporomandibular joint, etc. Additionally, this review introduces the molecular mechanisms involved in autophagy during the regeneration of different parts of oral tissue, and how autophagy can be regulated by small molecule drugs, biomaterials, exosomes/RNAs or other specific treatments. Finally, this review discusses new perspectives for autophagy manipulation and oral tissue regeneration. KEY SCIENTIFIC CONCEPTS OF REVIEW Overall, this review emphasizes the contribution of autophagy to oral tissue regeneration and highlights the possible approaches for regulating autophagy to promote the regeneration of human oral tissue.
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Affiliation(s)
- Xinyue Xu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, PR China; Shaanxi Key Lab of Free Radical Biology and Medicine, Fourth Military Medical University, Xi'an, PR China
| | - Jia Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Yunlong Xia
- Shaanxi Key Lab of Free Radical Biology and Medicine, Fourth Military Medical University, Xi'an, PR China; Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Yuan Yin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Tianxiao Zhu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, PR China; Shaanxi Key Lab of Free Radical Biology and Medicine, Fourth Military Medical University, Xi'an, PR China
| | - Faming Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Chunxu Hai
- Shaanxi Key Lab of Free Radical Biology and Medicine, Fourth Military Medical University, Xi'an, PR China.
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Sukpaita T, Chirachanchai S, Chanamuangkon T, Pimkhaokham A, Ampornaramveth RS. Alveolar ridge preservation in rat tooth extraction model by chitosan-derived epigenetic modulation scaffold. J Prosthodont Res 2024; 68:299-309. [PMID: 37438120 DOI: 10.2186/jpr.jpr_d_23_00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
PURPOSE Alveolar ridge preservation is a surgical technique used to prevent dimensional changes in the alveolar bone by dressing biomaterials in the extraction socket. Recently, a chitosan biphasic calcium phosphate loaded with trichostatin A (CS/BCP/TSA) scaffold was introduced as an excellent bone-regeneration material. This study aimed to explore the biological properties of released trichostatin A (TSA) and evaluate the potential of the CS/BCP/TSA scaffold in preserving the alveolar ridge in a rat tooth extraction model. METHODS In vitro biocompatibility, histone deacetylase (HDAC) activity, and osteogenic differentiation of MC3T3-E1 cells were tested. For in vivo studies, the maxillary first molars (M1) of Wistar rats were extracted, and alveolar ridge preservation was performed using a CS/BCP/TSA scaffold or commercial bone graft. Micro-Computed Tomography (micro-CT), polyfluorochrome labeling, and histological analysis were used to evaluate the ridge-preservation ability. RESULTS The released TSA was cytocompatible. Inhibition of histone deacetylase (HDAC) activity and induction of osteogenic differentiation in MC3T3-E1 cells were confirmed. The socket dressing with the CS/BCP/TSA scaffold showed increased socket bone fill and preserved the buccal and middle aspects of the alveolar ridge compared with the conventional graft. Further analysis of the bone regeneration ability by histomorphometric and histological analyses demonstrated that CS/BCP/TSA showed a significantly higher potential to induce bone formation and complete healing in the extraction socket than the other groups. CONCLUSIONS The CS/BCP/TSA scaffold is a novel candidate for alveolar ridge preservation.
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Affiliation(s)
- Teerawat Sukpaita
- Center of Excellence on Oral Microbiology and Immunology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Department of Oral Surgery, Faculty of Dentistry, Naresuan University, Phitsanulok, Thailand
| | - Suwabun Chirachanchai
- Bioresources Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok, Thailand
| | - Theerapat Chanamuangkon
- Biomaterial Testing Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Atiphan Pimkhaokham
- Bioresources Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Ruchanee Salingcarnboriboon Ampornaramveth
- Center of Excellence on Oral Microbiology and Immunology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Department of Microbiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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Abd-Elhaleem Othman MA, Zaky AA, Eltayeb EA, Khalil NM. A radiographic and histological study to compare red (650 nm) versus near infrared (810 nm) diode lasers photobiomodulation for alveolar socket preservation. Sci Rep 2024; 14:6871. [PMID: 38519552 PMCID: PMC10959980 DOI: 10.1038/s41598-024-57114-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/14/2024] [Indexed: 03/25/2024] Open
Abstract
Previous findings indicated that the laser photobiomodulation is more effective than the control or placebo in preserving the alveolar socket. This study aimed to compare two different lasers regarding their effectiveness in aiding alveolar socket preservation. Twenty extraction sockets were selected then divided into two equal groups. Group A was exposed to 650 nm Diode laser, and Group B to 810 nm Diode laser following the same protocol and parameters after a standard alveolar socket preservation procedure with collagen plug. Radiographic analysis with cone beam computed tomography was done to compare the alveolar bone surface area immediately after extraction and three months post-operatively, while bone samples collected before implant drilling were histologically examined for newly formed bone evaluation and histomorphometric analysis in terms of percentage of new bone surface area, percentage of unmineralized bone and finally, immunohistochemical analysis of Osteocalcin reaction surface area as well as optical density. Radiographically, infrared (810 nm) Diode effect on alveolar bone surface area has significantly exceeded the red laser, while histologically, red (650 nm) Diode has demonstrated statistical significance regarding all parameters; newly formed bone surface area percentage, unmineralized bone area percentage and finally Osteocalcin bone marker reaction surface area percentage and optical density. Under the specified conditions and laser parameters, photobiomodulation using the 810 nm Diode got the upper hand radiographically, yet histologically, the red 650 nm Diode managed to dominate all histological parameters when both employed as an adjunct to alveolar socket preservation procedures.
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Affiliation(s)
| | - Ahmed Abbas Zaky
- Medical Applications of Lasers Department, National Institute of Laser Enhanced Sciences, Cairo University, Cairo, Egypt
| | - Elsayed Abdullah Eltayeb
- Medical Applications of Lasers Department, National Institute of Laser Enhanced Sciences, Cairo University, Cairo, Egypt
| | - Nesma Mohamed Khalil
- Oral Biology Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
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Bagourd T, Varazzani A, Dugast S, Guyonvarc'h P, Corre P, Bertin H. Radiological evaluation of inferior alveolar nerve displacement after removal of impacted mandibular third molars prior to sagittal split osteotomy. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101658. [PMID: 37866504 DOI: 10.1016/j.jormas.2023.101658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/05/2023] [Accepted: 10/19/2023] [Indexed: 10/24/2023]
Abstract
INTRODUCTION We hypothesize that the removal of mandibular third molars (M3) 6 months prior to a bilateral sagittal split osteotomy (BSSO) could allow the displacement of the inferior alveolar nerve (IAN) in a favorable lingual position. This study aimed to radiographically compare the position of IAN before and after M3 removal in patients with Class II malocclusion. MATERIALS AND METHOD The CBCT images of 30 randomly selected patients (mean age 15.5 years, 19 females and 11 males) were segmented regarding the mandibular bone and the IAN canal. Mandibles were then superimposed and compared using 3D slicer (www.slicer.org). An orthonormal system was constructed, and the coordinates of IAN were assessed in the x- (horizontal axis), y- (depth axis), and z- (vertical axis) directions. RESULTS The mean changes in x- and z-values were 0.37 %, -0.09 % for the right IAN, 0.07 %, and -0.10 % for the left IAN, respectively. Y-axis was the dimension the most impacted by the M3 removal with a mean variation of -11.96 % for the right IAN, and 0.45 % for the left nerve (p1=0.74 and p2=0.04, respectively). Three patients presented a change in the IAN position superior to 1 mm on at least one coordinate axis. We observed a more important change in x-values of the right IAN in male than in female (p = 0.04), and no significant modifications regarding the other dimensions. Finally, there was no correlation between the age of the patients and the changes in IAN position. CONCLUSION This study confirms the absence of influence of mandibular third molar removal on the inferior alveolar nerve route prior to BSSO.
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Affiliation(s)
- Thomas Bagourd
- Service de Chirurgie Maxillo-Faciale et Stomatologie, CHU Nantes, Nantes Université, Nantes F-44000, France
| | - Andrea Varazzani
- Chirurgie Maxillo-Faciale, Chirurgie Plastique, Stomatologie et Chirurgie Orale, Hospices Civils de Lyon, Lyon-Sud Hospital - Claude-Bernard Lyon 1, 165 Chemin du Grand-Revoyet, Pierre-Bénite 69310, France
| | - Sophie Dugast
- Service de Chirurgie Maxillo-Faciale et Stomatologie, CHU Nantes, Nantes Université, Nantes F-44000, France
| | - Pierre Guyonvarc'h
- Service de Chirurgie Maxillo-Faciale et Stomatologie, CHU Nantes, Nantes Université, Nantes F-44000, France
| | - Pierre Corre
- Service de Chirurgie Maxillo-Faciale et Stomatologie, CHU Nantes, Nantes Université, Nantes F-44000, France; Nantes Université, Oniris, UnivAngers, INSERM, Regenerative Medicine and Skeleton, CHU Nantes, RMeS, UMR 1229, Nantes F-44000, France
| | - Hélios Bertin
- Service de Chirurgie Maxillo-Faciale et Stomatologie, CHU Nantes, Nantes Université, Nantes F-44000, France; UnivAngers, INSERM, CNRS, CHU Nantes, Nantes Université, CRCI2NA, Nantes F-44000, France.
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Kresnoadi U, Sari N, Laksono H. Socket preservation using a combination of propolis extract and bovine bone graft towards the expression of receptor activator of nuclear κB ligand and osteoprogerin. Folia Med (Plovdiv) 2023; 65:737-743. [PMID: 38351755 DOI: 10.3897/folmed.65.e95802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 03/07/2023] [Indexed: 02/16/2024] Open
Abstract
AIM This study was undertaken to comprehend the effect of a combination of bovine bone graft (BBG) and propolis extract on the receptor activator of nuclear κB ligand (RANKL) and osteoprotegerin (OPG) expressions in post-extraction tooth sockets.
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Affiliation(s)
| | - Nila Sari
- Universitas Airlangga, Surabaya, Indonesia
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Qin C, Ren T, Liu Y, Shao H, Mi F, Wang B. Efficacy of positive space acquiring membrane and antimicrobial membrane combined with granular bone substitute implantation in guiding oral bone regeneration. J Biomater Appl 2023; 38:562-572. [PMID: 37665085 DOI: 10.1177/08853282231200716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Augmentation of the alveolar bone is important before oral implantation. For large bone defects, it becomes necessary to apply guided bone regeneration (GBR) materials, accompanied by filling defect sites with autologous or allogeneic bone, or bone substitutes such as acellular bone powder. In this study, we tested a granular bone substitute and GBR membrane combination therapy in treating MC3T3-E1 and L929 cells in vitro and rat calvarial and alveolar defects in vivo. The recovery conditions of bone defects were monitored by micro-CT, and 3D reconstruction of the CT images was applied to evaluate the bone augmentation semi-quantitatively. Test GBR materials could support the proliferation of MC3T3-E1 cells, poly (p-dioxanone-co-L-phenylalanine) (PDPA)-based membrane could induce apoptosis of L929 cells. Among GBR membranes applied groups, the regeneration condition of defected calvarial defects of PDPA based membrane applied group was the best and this may be caused by its excellent positive space acquiring effect. However, in a complex bacteriogenic environment, the oral bone regeneration-guided efficacy of the PDPA membrane decreased in the post-repair stage with the aggravation of infections. By contrast, the antimicrobial membrane combined with the PDPA membrane exhibited continually increasing GBR efficacy at the later stage of repair owing to its multifunctional properties, which are infection-inhibiting and positive space acquiring. Therefore, multifunctional GBR membranes are preferable for GBR in complex oral environments, and further research should be conducted to determine their efficacy in other models.
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Affiliation(s)
- Chuanlan Qin
- Department of Stomatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Tongyan Ren
- Department of Chemistry, School of Pharmacy, North Sichuan Medical College, Nanchong, China
| | - Yiming Liu
- Department of Stomatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Huaying Shao
- Department of Stomatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Fanglin Mi
- Department of Stomatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Bing Wang
- Department of Chemistry, School of Pharmacy, North Sichuan Medical College, Nanchong, China
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Lee WW, Seo JW, Jang IS, Kwon YJ, Joung WJ, Jun JH, Kim J, Son D, Lim SW, Yun SH, Tallarico M, Park CJ. Comparison of Prophylactic Effects between Localized Biomimetic Minocycline and Systematic Amoxicillin on Implants Placed Immediately in Infected Sockets. Biomimetics (Basel) 2023; 8:461. [PMID: 37887592 PMCID: PMC10604678 DOI: 10.3390/biomimetics8060461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023] Open
Abstract
This study evaluated the prophylactic effect of localized biomimetic minocycline and systemic amoxicillin on immediate implant placement at infected extraction sites. Twelve mongrels with six implants each were randomly assigned to five groups: uninfected negative control (Group N); infected with oral complex bacteria (Group P); infected and treated with amoxicillin one hour before implant placement (Group A); infected and treated with minocycline during implant placement (Group B); and infected and treated with amoxicillin one hour before implant placement and with minocycline during implant placement (Group C). Radiographic bone level, gingival index (GI), probing depth (PD), papillary bleeding index (PBI), and removal torque (RT) were recorded. There was no significant difference between Groups A, B, and C for bone loss. Group A showed the highest RT, the lowest PBI, and significantly lower GI and PD values than Group P. Group B exhibited significantly higher RT value than Group N and significantly smaller PD value than Group P at 6 w postoperatively. Localized minocycline could improve implant success by reducing bone loss and increasing RT and systemic amoxicillin could maintain the stability of the peri-implant soft tissue. However, combined use of these two antibiotics did not augment the prophylactic effect.
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Affiliation(s)
- Won-Woo Lee
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Jin-Won Seo
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Il-Seok Jang
- Osstem R&D Center, Seoul 07789, Republic of Korea
| | | | - Won-Jun Joung
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Jong-Hun Jun
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Jiyeong Kim
- Department of Pre-Medicine, College of Medicine and Biostatistics Lab, Medical Research Collaborating Center (MRCC), Hanyang University, Seoul 04763, Republic of Korea
| | - Donghee Son
- Laboratory of Biostatistical Consulting and Research, Medical Research Collaborating Center, Industry-University Cooperation Foundation, Hanyang University, Seoul 04763, Republic of Korea
| | - Seung-Weon Lim
- Division of Orthodontics, Department of Dentistry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Seo-Hyoung Yun
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Marco Tallarico
- Department of Medicine, Surgery, and Pharmacy, University of Sassari, 07021 Sassari, Italy
| | - Chang-Joo Park
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
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Nagrani T, Kumar S, Haq MA, Dhanasekaran S, Gajjar S, Patel C, Sinha S, Haque M. Use of Injectable Platelet-Rich Fibrin Accompanied by Bone Graft in Socket Endurance: A Radiographic and Histological Study. Cureus 2023; 15:e46909. [PMID: 37841989 PMCID: PMC10569439 DOI: 10.7759/cureus.46909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2023] [Indexed: 10/17/2023] Open
Abstract
Background Ridge preservation became a crucial dental health issue and strategy to keep away from ridge defacement after post-tooth loss. The recent scientific evolution of platelet-rich fibrin (PRF) comprises a parenteral formulation of PRF. The combined allograft for socket preservation gives benefits. In this study, bone allografts, demineralized freeze-dried bone allografts (DFDBA) and freeze-dried bone allografts (FDBA) are used in a 30:70 ratio alone or in combination with injectable PRF (I-PRF) for socket preservation. Methods This study is a radiographic and histological examination conducted on 60 participants aged between 19-65 years. Participating patients agreed voluntarily that they would not bear any fixed prosthesis for the next nine months and plan for implanted teeth placement, including multi-rooted mandibular molars denticles. Both groups received atraumatic extraction; then, the socket was preserved with bone allograft alone in the control group and bone allograft mixed with I-PRF, forming sticky bone, in the experimental group. Clinical, radiological, and histological assessments were taken at the inception stage, three months, six months, and nine months. A multivariate regression model and a generalized estimating equation (GEE) model were used to analyse the effects of these changes on outcomes. Results In all the parameters, the test group indicated a good amount of bone growth with increasing intervals of time for bone height radiographically with statistically significant difference present (p<0.05) and histologically after nine months when socket site grafted with bone graft in combination with I-PRF. Conclusion This study's results demonstrated that I-PRF possesses the potential to regenerate and heal in the tooth-extracted socket. This study further recommends the implementation of I-PRF in safeguarding and conserving the raised rim of the tooth. Future research should take place on the osteogenic capability of I-PRF in more comprehensive ridge accession surgical procedures and additional expanding and improving capacities in periodontal reconstruction.
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Affiliation(s)
- Tanya Nagrani
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Santosh Kumar
- Periodontology and Implantology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Md Ahsanul Haq
- Bio-Statistics, Infectious Diseases Division, icddr, b, Dhaka, BGD
| | | | - Shreya Gajjar
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Chandni Patel
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Susmita Sinha
- Physiology, Khulna City Medical College and Hospital, Khulna, BGD
| | - Mainul Haque
- Karnavati Scientific Research Center (KSRC), Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
- Pharmacology and Therapeutics, National Defence University of Malaysia, Kuala Lumpur, MYS
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11
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Puricelli C, Gigliotti CL, Stoppa I, Sacchetti S, Pantham D, Scomparin A, Rolla R, Pizzimenti S, Dianzani U, Boggio E, Sutti S. Use of Poly Lactic-co-glycolic Acid Nano and Micro Particles in the Delivery of Drugs Modulating Different Phases of Inflammation. Pharmaceutics 2023; 15:1772. [PMID: 37376219 DOI: 10.3390/pharmaceutics15061772] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Chronic inflammation contributes to the pathogenesis of many diseases, including apparently unrelated conditions such as metabolic disorders, cardiovascular diseases, neurodegenerative diseases, osteoporosis, and tumors, but the use of conventional anti-inflammatory drugs to treat these diseases is generally not very effective given their adverse effects. In addition, some alternative anti-inflammatory medications, such as many natural compounds, have scarce solubility and stability, which are associated with low bioavailability. Therefore, encapsulation within nanoparticles (NPs) may represent an effective strategy to enhance the pharmacological properties of these bioactive molecules, and poly lactic-co-glycolic acid (PLGA) NPs have been widely used because of their high biocompatibility and biodegradability and possibility to finely tune erosion time, hydrophilic/hydrophobic nature, and mechanical properties by acting on the polymer's composition and preparation technique. Many studies have been focused on the use of PLGA-NPs to deliver immunosuppressive treatments for autoimmune and allergic diseases or to elicit protective immune responses, such as in vaccination and cancer immunotherapy. By contrast, this review is focused on the use of PLGA NPs in preclinical in vivo models of other diseases in which a key role is played by chronic inflammation or unbalance between the protective and reparative phases of inflammation, with a particular focus on intestinal bowel disease; cardiovascular, neurodegenerative, osteoarticular, and ocular diseases; and wound healing.
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Affiliation(s)
- Chiara Puricelli
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
- Maggiore della Carità University Hospital, Corso Mazzini 18, 28100 Novara, Italy
| | - Casimiro Luca Gigliotti
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
- NOVAICOS s.r.l.s, Via Amico Canobio 4/6, 28100 Novara, Italy
| | - Ian Stoppa
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
| | - Sara Sacchetti
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
- Maggiore della Carità University Hospital, Corso Mazzini 18, 28100 Novara, Italy
| | - Deepika Pantham
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
- NOVAICOS s.r.l.s, Via Amico Canobio 4/6, 28100 Novara, Italy
| | - Anna Scomparin
- Department of Drug Science and Technology, University of Torino, 10125 Turin, Italy
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Roberta Rolla
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
- Maggiore della Carità University Hospital, Corso Mazzini 18, 28100 Novara, Italy
| | - Stefania Pizzimenti
- Department of Clinical and Biological Science, University of Turin, Corso Raffaello 30, 10125 Torino, Italy
| | - Umberto Dianzani
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
- Maggiore della Carità University Hospital, Corso Mazzini 18, 28100 Novara, Italy
| | - Elena Boggio
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
- NOVAICOS s.r.l.s, Via Amico Canobio 4/6, 28100 Novara, Italy
| | - Salvatore Sutti
- Department of Health Sciences, Università del Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy
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12
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Scribante A, Ghizzoni M, Pellegrini M, Pulicari F, Manfredini M, Poli PP, Maiorana C, Spadari F. Full-Digital Customized Meshes in Guided Bone Regeneration Procedures: A Scoping Review. PROSTHESIS 2023; 5:480-495. [DOI: 10.3390/prosthesis5020033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Meshes, especially titanium ones, are being widely applied in oral surgery. In guided bone regeneration (GBR) procedures, their use is often paired with membranes, being resorbable or non-resorbable. However, they present some limitations, such as difficulty in the treatment of severe bone defects, alongside frequent mesh exposure. Customized meshes, produced by a full-digital process, have been recently introduced in GBR procedures. Therefore, the focus of the present review is to describe the main findings in recent years of clinical trials regarding patient-specific mesh produced by CAD/CAM and 3D printing workflow, made in titanium or even PEEK, applied to GBR surgeries. The purpose is to analyze their clinical management, advantages, and complications. This scoping review considered randomized clinical trials, observational studies, cohort studies, and case series/case reports studies. Studies that did not meet inclusion criteria were excluded. The preferred reporting items for scoping reviews (PRISMA-ScR) consensus was followed. A total of 15 studies were selected for this review. Based on the studies included, the literature suggests that meshes produced by a digital process are used to restore complex and severe bone defects. Moreover, they give satisfactory aesthetic results and fit the defects, counteracting grid exposure. However, more clinical trials should be conducted to evaluate long-term results, the rate of complications, and new materials for mesh manufacturing.
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Affiliation(s)
- Andrea Scribante
- Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Martina Ghizzoni
- Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Matteo Pellegrini
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Federica Pulicari
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Mattia Manfredini
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Pier Paolo Poli
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Carlo Maiorana
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Francesco Spadari
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
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13
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Morgan N, Meeus J, Shujaat S, Cortellini S, Bornstein MM, Jacobs R. CBCT for Diagnostics, Treatment Planning and Monitoring of Sinus Floor Elevation Procedures. Diagnostics (Basel) 2023; 13:diagnostics13101684. [PMID: 37238169 DOI: 10.3390/diagnostics13101684] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/05/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
Sinus floor elevation (SFE) is a standard surgical technique used to compensate for alveolar bone resorption in the posterior maxilla. Such a surgical procedure requires radiographic imaging pre- and postoperatively for diagnosis, treatment planning, and outcome assessment. Cone beam computed tomography (CBCT) has become a well-established imaging modality in the dentomaxillofacial region. The following narrative review is aimed to provide clinicians with an overview of the role of three-dimensional (3D) CBCT imaging for diagnostics, treatment planning, and postoperative monitoring of SFE procedures. CBCT imaging prior to SFE provides surgeons with a more detailed view of the surgical site, allows for the detection of potential pathologies three-dimensionally, and helps to virtually plan the procedure more precisely while reducing patient morbidity. In addition, it serves as a useful follow-up tool for assessing sinus and bone graft changes. Meanwhile, using CBCT imaging has to be standardized and justified based on the recognized diagnostic imaging guidelines, taking into account both the technical and clinical considerations. Future studies are recommended to incorporate artificial intelligence-based solutions for automating and standardizing the diagnostic and decision-making process in the context of SFE procedures to further improve the standards of patient care.
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Affiliation(s)
- Nermin Morgan
- OMFS IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven, 3000 Leuven, Belgium
- Department of Oral Medicine, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
| | - Jan Meeus
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Campus Sint-Rafael, 3000 Leuven, Belgium
| | - Sohaib Shujaat
- OMFS IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven, 3000 Leuven, Belgium
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Campus Sint-Rafael, 3000 Leuven, Belgium
- King Abdullah International Medical Research Center, Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh 11426, Saudi Arabia
| | - Simone Cortellini
- Department of Oral Health Sciences, Section of Periodontology, KU Leuven, 3000 Leuven, Belgium
- Department of Dentistry, University Hospitals Leuven, KU Leuven, 3000 Leuven, Belgium
| | - Michael M Bornstein
- Department of Oral Health & Medicine, University Center for Dental Medicine Basel UZB, University of Basel, 4058 Basel, Switzerland
| | - Reinhilde Jacobs
- OMFS IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven, 3000 Leuven, Belgium
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Campus Sint-Rafael, 3000 Leuven, Belgium
- Department of Dental Medicine, Karolinska Institute, 141 04 Huddinge, Sweden
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Akçay H, Kalabalık F, Tatar B. Evaluation of the posterior superior alveolar artery location and diameter with a newly defined stable plane. Int J Oral Maxillofac Surg 2023; 52:503-509. [PMID: 33863621 DOI: 10.1016/j.ijom.2021.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 01/12/2021] [Accepted: 03/24/2021] [Indexed: 10/14/2022]
Abstract
The aim of this study was to analyse the vertical location of the posterior superior alveolar artery (PSAA) using a reliable new reference plane regardless of tooth and alveolar bone, and to measure the diameter in each posterior tooth region, which is of relevance to lateral sinus floor elevation surgery. A total of 270 sinuses in 139 patients were examined in this study. The A-plane was defined by A-point and the bilateral jugal points on reconstructed three-dimensional images. The distance from the PSAA to the defined plane was measured in four regions: first premolar (P1), second premolar (P2), first molar (M1), and second molar (M2). The average distance of the PSAA above the plane in the P1, P2, M1, and M2 regions was determined to be 10.24mm, 7.35mm, 5.47mm, and 7.23mm, respectively. The PSAA was found to run above the plane in 97.4% of sinuses, below the plane in 1.1%, and on the plane in 1.5%. In conclusion, the new plane is useful for intraoperative location of the PSAA. According to the study findings, the area below the reference plane can be considered safe for lateral approach sinus surgery in terms of preserving the integrity of the PSAA.
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Affiliation(s)
- H Akçay
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Izmir Katip Celebi University, Izmir, Turkey
| | - F Kalabalık
- Department of Oral snd Maxillofacial Radiology, Faculty of Dentistry, Izmir Katip Celebi University, Izmir, Turkey
| | - B Tatar
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Izmir Katip Celebi University, Izmir, Turkey.
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15
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POSS and SSQ Materials in Dental Applications: Recent Advances and Future Outlooks. Int J Mol Sci 2023; 24:ijms24054493. [PMID: 36901923 PMCID: PMC10003367 DOI: 10.3390/ijms24054493] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/07/2023] [Accepted: 02/11/2023] [Indexed: 03/03/2023] Open
Abstract
Recently, silsesquioxanes (SSQ) and polyhedral oligomeric silsesquioxanes (POSS) have gained much interest in the area of biomaterials, mainly due to their intrinsic properties such as biocompatibility, complete non-toxicity, the ability to self-assemble and to form a porous structure, facilitating cell proliferation, creating a superhydrophobic surface, osteoinductivity, and ability to bind hydroxyapatite. All the above has resulted in new developments in medicine. However, the application of POSS-containing materials in dentistry is still at initial stage and deserves a systematic description to ensure future development. Significant problems, such as reduction of polymerization shrinkage, water absorption, hydrolysis rate, poor adhesion and strength, unsatisfactory biocompatibility, and corrosion resistance of dental alloys, can be addressed by the design of multifunctional POSS-containing materials. Because of the presence of silsesquioxanes, it is possible to obtain smart materials that allow the stimulation of phosphates deposition and repairing of micro-cracks in dental fillings. Hybrid composites result in materials exhibiting shape memory, as well as antibacterial, self-cleaning, and self-healing properties. Moreover, introducing POSS into polymer matrix allows for materials for bone reconstruction, and wound healing. This review covers the recent developments in the field of POSS application in dental materials and gives the future perspectives within a promising field of biomedical material science and chemical engineering.
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Huang ACS, Ishida Y, Li K, Rintanalert D, Hatano-sato K, Oishi S, Hosomichi J, Usumi-fujita R, Yamaguchi H, Tsujimoto H, Sasai A, Ochi A, Watanabe H, Ono T. NF-κB Decoy ODN-Loaded Poly(Lactic-co-glycolic Acid) Nanospheres Inhibit Alveolar Ridge Resorption. Int J Mol Sci 2023; 24:ijms24043699. [PMID: 36835111 PMCID: PMC9962103 DOI: 10.3390/ijms24043699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
Residual ridge resorption combined with dimensional loss resulting from tooth extraction has a prolonged correlation with early excessive inflammation. Nuclear factor-kappa B (NF-κB) decoy oligodeoxynucleotides (ODNs) are double-stranded DNA sequences capable of downregulating the expression of downstream genes of the NF-κB pathway, which is recognized for regulating prototypical proinflammatory signals, physiological bone metabolism, pathologic bone destruction, and bone regeneration. The aim of this study was to investigate the therapeutic effect of NF-κB decoy ODNs on the extraction sockets of Wistar/ST rats when delivered by poly(lactic-co-glycolic acid) (PLGA) nanospheres. Microcomputed tomography and trabecular bone analysis following treatment with NF-κB decoy ODN-loaded PLGA nanospheres (PLGA-NfDs) demonstrated inhibition of vertical alveolar bone loss with increased bone volume, smoother trabecular bone surface, thicker trabecular bone, larger trabecular number and separation, and fewer bone porosities. Histomorphometric and reverse transcription-quantitative polymerase chain reaction analysis revealed reduced tartrate-resistant acid phosphatase-expressing osteoclasts, interleukin-1β, tumor necrosis factor-α, receptor activator of NF-κB ligand, turnover rate, and increased transforming growth factor-β1 immunopositive reactions and relative gene expression. These data demonstrate that local NF-κB decoy ODN transfection via PLGA-NfD can be used to effectively suppress inflammation in a tooth-extraction socket during the healing process, with the potential to accelerate new bone formation.
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Affiliation(s)
- Albert chun-shuo Huang
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
| | - Yuji Ishida
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
- Correspondence: ; Tel.: +81-3-5803-5528
| | - Kai Li
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
| | - Duantawan Rintanalert
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
- Department of Orthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kasumi Hatano-sato
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
| | - Shuji Oishi
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
| | - Jun Hosomichi
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
| | - Risa Usumi-fujita
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
| | - Hiroyuki Yamaguchi
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
- Department of Pediatrics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Hiroyuki Tsujimoto
- Pharmaceutical/Beauty Science Research Center, Material Business Division, Hosokawa Micron Corporation, Osaka 573-1132, Japan
| | - Aiko Sasai
- Pharmaceutical/Beauty Science Research Center, Material Business Division, Hosokawa Micron Corporation, Osaka 573-1132, Japan
| | - Ayaka Ochi
- Pharmaceutical/Beauty Science Research Center, Material Business Division, Hosokawa Micron Corporation, Osaka 573-1132, Japan
| | | | - Takashi Ono
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan
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Thurzo A, Gálfiová P, Nováková ZV, Polák Š, Varga I, Strunga M, Urban R, Surovková J, Leško Ľ, Hajdúchová Z, Feranc J, Janek M, Danišovič Ľ. Fabrication and In Vitro Characterization of Novel Hydroxyapatite Scaffolds 3D Printed Using Polyvinyl Alcohol as a Thermoplastic Binder. Int J Mol Sci 2022; 23:ijms232314870. [PMID: 36499194 PMCID: PMC9736063 DOI: 10.3390/ijms232314870] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
This paper presents a proof-of-concept study on the biocolonization of 3D-printed hydroxyapatite scaffolds with mesenchymal stem cells (MSCs). Three-dimensional (3D) printed biomimetic bone structure made of calcium deficient hydroxyapatite (CDHA) intended as a future bone graft was made from newly developed composite material for FDM printing. The biopolymer polyvinyl alcohol serves in this material as a thermoplastic binder for 3D molding of the printed object with a passive function and is completely removed during sintering. The study presents the material, the process of fused deposition modeling (FDM) of CDHA scaffolds, and its post-processing at three temperatures (1200, 1300, and 1400 °C), as well it evaluates the cytotoxicity and biocompatibility of scaffolds with MTT and LDH release assays after 14 days. The study also includes a morphological evaluation of cellular colonization with scanning electron microscopy (SEM) in two different filament orientations (rectilinear and gyroid). The results of the MTT assay showed that the tested material was not toxic, and cells were preserved in both orientations, with most cells present on the material fired at 1300 °C. Results of the LDH release assay showed a slight increase in LDH leakage from all samples. Visual evaluation of SEM confirmed the ideal post-processing temperature of the 3D-printed FDM framework for samples fired at 1300 °C and 1400 °C, with a porosity of 0.3 mm between filaments. In conclusion, the presented fabrication and colonization of CDHA scaffolds have great potential to be used in the tissue engineering of bones.
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Affiliation(s)
- Andrej Thurzo
- Department of Orthodontics, Regenerative and Aesthetic Dentistry, Faculty of Medicine, Comenius University, 81250 Bratislava, Slovakia
- Correspondence: (A.T.); (Ľ.D.)
| | - Paulína Gálfiová
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University, 81104 Bratislava, Slovakia
| | - Zuzana Varchulová Nováková
- Institute of Medical Biology, Genetics and Clinical Genetic, Faculty of Medicine, Comenius University, 81108 Bratislava, Slovakia
- National Institute of Rheumatic Diseases, 92112 Piešťany, Slovakia
| | - Štefan Polák
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University, 81104 Bratislava, Slovakia
| | - Ivan Varga
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University, 81104 Bratislava, Slovakia
| | - Martin Strunga
- Department of Orthodontics, Regenerative and Aesthetic Dentistry, Faculty of Medicine, Comenius University, 81250 Bratislava, Slovakia
| | - Renáta Urban
- Department of Orthodontics, Regenerative and Aesthetic Dentistry, Faculty of Medicine, Comenius University, 81250 Bratislava, Slovakia
| | - Jana Surovková
- Department of Orthodontics, Regenerative and Aesthetic Dentistry, Faculty of Medicine, Comenius University, 81250 Bratislava, Slovakia
| | - Ľuboš Leško
- Institute of Medical Biology, Genetics and Clinical Genetic, Faculty of Medicine, Comenius University, 81108 Bratislava, Slovakia
| | - Zora Hajdúchová
- Department of Inorganic Materials, Faculty of Chemical and Food Technology, Slovak University of Technology, 81237 Bratislava, Slovakia
| | - Jozef Feranc
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology, 81237 Bratislava, Slovakia
| | - Marian Janek
- Department of Inorganic Materials, Faculty of Chemical and Food Technology, Slovak University of Technology, 81237 Bratislava, Slovakia
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, 84215 Bratislava, Slovakia
| | - Ľuboš Danišovič
- Institute of Medical Biology, Genetics and Clinical Genetic, Faculty of Medicine, Comenius University, 81108 Bratislava, Slovakia
- National Institute of Rheumatic Diseases, 92112 Piešťany, Slovakia
- Correspondence: (A.T.); (Ľ.D.)
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18
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Meghana ISS, Bhat AR, Bhandary R, Thomas B. Potential of Lasers in the Realm of Aesthetic Dentistry: A Narrative Review. JOURNAL OF HEALTH AND ALLIED SCIENCES NU 2022. [DOI: 10.1055/s-0042-1758031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractIn contemporary dental practice, patients' interests are taken into account in terms of function and appearance. The importance in everyday circumstances, current advertising, and the media in general highlight their effect on an attractive appearance. Many academics in the field of dental aesthetics have stated equivocally that when examining the impact of tooth appearance necessitates a multidisciplinary approach. Laser technology in cosmetic dentistry is in its early stages of development and has a lot of potential in the future. Also, with expanding use of lasers in clinical dentistry, treatment planning and prognosis will see a significant improvement in the future. The introduction of this technology has turned dentistry into a painless, bloodless field with increased predictability and instant outcomes. Furthermore, these techniques can help a cosmetic dentist regulate gingiva and osseous outlines with greater creativity in the pursuit of aesthetic dental principles with more efficient use of patient time. Even from the patient standpoint, the reduced requirement for suturing and faster healing times improves case acceptance and enables the increased demand for aesthetic dentistry. The resolution of this paper is to deliver an overview of various laser applications in aesthetic dentistry and its pros and cons over the conventional approaches.
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Affiliation(s)
- Ivaturi Sri Sai Meghana
- Department of Periodontology, A B Shetty Memorial Institute of Dental Sciences, NITTE Deemed to be University, Mangalore, Karnataka, India
| | - Amitha Ramesh Bhat
- Department of Periodontology, A B Shetty Memorial Institute of Dental Sciences, NITTE Deemed to be University, Mangalore, Karnataka, India
| | - Rahul Bhandary
- Department of Periodontology, A B Shetty Memorial Institute of Dental Sciences, NITTE Deemed to be University, Mangalore, Karnataka, India
| | - Biju Thomas
- Department of Periodontology, A B Shetty Memorial Institute of Dental Sciences, NITTE Deemed to be University, Mangalore, Karnataka, India
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Sharma SD, Gupta A, Bansal P, Alexander M, Vidya B, Gupta H. Minimally traumatic extraction techniques in nonrestorable endodontically treated teeth: A comparative study. Natl J Maxillofac Surg 2022; 13:S91-S96. [PMID: 36393928 PMCID: PMC9651255 DOI: 10.4103/njms.njms_309_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 05/05/2021] [Accepted: 05/23/2021] [Indexed: 11/30/2022] Open
Abstract
AIM The goal of this study was to assess the effectiveness of piezotome as compared to periotome extractions of nonrestorable endodontic treatment of teeth in terms of operational time, pain control, and postoperative bone loss considering the prosthetic rehabilitation in future. MATERIALS AND METHODS A double-blind, randomized controlled trial was conducted with 100 patients who wanted single-rooted teeth to be extracted (which failed endodontically). The participants have been randomized into two equal groups named as - (i) a periotome group (ii) and a piezotome group. Duration of the surgery, postoperative pain within 7 days, complications (if any) associated with the extraction process were performed as a part of clinical assessment. Bone loss has been analyzed 6 months after the surgery radiographically. The data have been recorded and analyzed using the version 22.0 of the SPSS software package. RESULTS All parameters in the periotome category (P < 0.05) were statistically significant except for bone loss and gingival laceration in comparison to piezotome group. In the piezotome group, a longer time was observed for surgery and delayed pain control was achieved. In our study, we found statistically significant more marginal bone loss in piezotome group in comparison with periotome group. CONCLUSION The findings of this study indicate that for intraoperative and postoperative comfort periotome could be used as a safer and cheaper option for atraumatic extractions but piezosurgery may prove as a better choice soon for surgeries in the maxillofacial region to maintain soft-tissue integrity.
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Affiliation(s)
- Sneha D. Sharma
- Department of Oral and Maxillofacial Surgery, Sudha Rustagi College of Dental Sciences and Research, Faridabad, Haryana, India,Address for correspondence: Dr. Sneha D. Sharma, Department of Oral and Maxillofacial Surgery, Sudha Rustagi College of Dental Sciences and Research, Sector-89, Kheri More, Faridabad - 121 002, Haryana, India. E-mail:
| | - Ashish Gupta
- Department of Oral and Maxillofacial Surgery, Sudha Rustagi College of Dental Sciences and Research, Faridabad, Haryana, India
| | - Pankaj Bansal
- Department of Oral and Maxillofacial Surgery, Sudha Rustagi College of Dental Sciences and Research, Faridabad, Haryana, India
| | - Mohan Alexander
- Department of Oral and Maxillofacial Surgery, MAHSA University, Kuala Lumpur, Malaysia
| | - B Vidya
- Department of Oral and Maxillofacial Surgery, Oxford Dental College, Bengaluru, Karnataka, India
| | - Himani Gupta
- Department of Oral and Maxillofacial Surgery, Sudha Rustagi College of Dental Sciences and Research, Faridabad, Haryana, India
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Li J, Sheng Z, Sun J, Wang R, Yu X. Characterizations of alveolar repair after mandibular second molar extraction: an experimental study in rats. J Appl Oral Sci 2022; 30:e20220010. [PMID: 35830122 PMCID: PMC9275398 DOI: 10.1590/1678-7757-2022-0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 06/03/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Characterizations of rat mandibular second molar extraction socket with significantly different buccal and lingual alveolar ridge width remain unclear. OBJECTIVE To observe alterations in the alveolar ridge after extraction of mandibular second molars, and to examine processes of alveolar socket healing in an experimental model of alveolar ridge absorption and preservation. METHODOLOGY Eighteen Wistar rats were included and divided into six groups regarding healing time in the study. Bilateral mandibular second molars were extracted. The rats with tooth extraction sockets took 0, 1.5, 2, 3, 4 and 8 weeks of healing. Histological observation, tartrate-resistant acidic phosphatase (TRAP) staining, Masson's trichrome staining, immunohistochemical staining and micro-computed tomography (micro-CT) were applied to estimate alterations in the alveolar ridge. RESULTS Different buccal and lingual alveolar ridge width led to different height loss. Lingual wall height (LH) decreased significantly two weeks after tooth extraction. Buccal wall height rarely reduced its higher ridge width. From two to eight weeks after extraction, bone volume (BV/TV), density (BMD), and trabecular thickness (Tb.Th) progressively increased in the alveolar socket, which gradually decreased in Tb.Sp and Tb.N. LH showed no significant change during the same period. Osteogenic marker OCN and OPN increased during bone repair from two to eight weeks. The reduced height of the lingual wall of the tooth extraction socket was rarely repaired in the later repair stage. Osteoclast activity led to absorption of the alveolar ridge of the alveolar bone wall within two weeks after operation. We observed positive expression of EMMPRIN and MMP-9 in osteoclasts that participated in the absorption of the spire region. CONCLUSION Extraction of rat mandibular second molars may help the study of alveolar ridge absorption and preservation. The EMMPRIN-MMP-9 pathway may be a candidate for further study on attenuating bone resorption after tooth extraction.
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Affiliation(s)
- Jianbin Li
- Binzhou Medical College, School of Stomatology, Shandong, China.,Central Laboratory of Jinan Stomatological Hospital, Jinan Key Laboratory of Oral Tissue Regeneration, Department of Endodontics, Shandong Province, China
| | - Zhenxian Sheng
- Binzhou Medical College, School of Stomatology, Shandong, China.,Central Laboratory of Jinan Stomatological Hospital, Jinan Key Laboratory of Oral Tissue Regeneration, Department of Endodontics, Shandong Province, China
| | - Jing Sun
- Central Laboratory of Jinan Stomatological Hospital, Jinan Key Laboratory of Oral Tissue Regeneration, Department of Periodontology, Shandong Province, China
| | - Ronglin Wang
- Central Laboratory of Jinan Stomatological Hospital, Jinan Key Laboratory of Oral Tissue Regeneration, Department of Prosthodontics, Shandong Province, China
| | - Xijiao Yu
- Central Laboratory of Jinan Stomatological Hospital, Jinan Key Laboratory of Oral Tissue Regeneration, Department of Endodontics, Shandong Province, China
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Elaskary A, Abdelrahman H, Elsabagh HH, El-Kimary GI. Does Grafting The Jumping Gap In Immediately Placed Anterior Implants Using Vestibular Socket Therapy Influence The Labial Bone Thickness? J Oral Maxillofac Surg 2022; 80:1398-1407. [DOI: 10.1016/j.joms.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 10/18/2022]
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Effects of conventional complete dentures and implant-supported overdentures on alveolar ridge height and mandibular bone structure: 2-year and 6-year follow-up study. Clin Oral Investig 2022; 26:5643-5652. [PMID: 35488134 DOI: 10.1007/s00784-022-04519-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 04/23/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES The aim of this study was to compare the changes in mandibular bone structure in edentulous patients who were rehabilitated with conventional complete dentures (CCD) and implant supported overdentures (ISO), by evaluating alveolar bone loss (ABL), panoramic mandibular index (PMI), mandibular cortical width (MCW), gonion index (GI), antegonial index (AI), and articular eminence inclination (AEI). MATERIALS AND METHODS Panoramic radiographs of 63 edentulous patients using CCD, 63 edentulous patients using ISO, and 126 patients without tooth loss were evaluated. Edentulous patients had a 2-year and 6-year follow-up panoramic radiograph image. ABL (anterior, premolar, and molar regions), MCW, PMI, AI, GI, and AEI were measured in each patient. Variation between measurements was analyzed using repeated measures ANOVA test and post hoc Tukey test. RESULTS Both edentulous groups showed significantly lower mean than without tooth lost group in all measures (p < 0.000). ISO group showed significantly lower mean ABL than CCD group in anterior (p = 0.000), right premolar (p = 0.005), left premolar (p = 0.005), right molar (p < 0.000), and left premolar (p < 0.000) regions in short term. ISO group showed significantly lower mean ABL than CCD group in anterior (p = 0.021), right molar (p < 0.000), and left premolar (p < 0.000) regions in long-term. There is no statistically significant difference between the CCD and ISO groups in right premolar (p = 0.200) and left premolar (p = 0.134) regions in long term. Both edentulous groups showed significantly lower mean MCW (p < 0.000), PMI (p < 0.000), AI (p < 0.000), GI (p < 0.012), and AEI (p < 0.002) than the without tooth loss group. There is no statistically significant difference between the CCD and ISO groups in terms of changes in the mean MCW, PMI, AI, GI, and AEI measurement in short and long term (p > 0.000). CONCLUSIONS In the short and long term, edentulism reduced alveolar crest height, MCW, and AEI in individuals, but had no effect on PMI, AI, or GI. The use of prosthesis did not prevent the decrease of alveolar crest height, MCW, or AEI (CCP or ISO). In the short and long term, however, ISO created less ABL in the mandibular anterior and molar regions than CCD. CLINICAL RELEVANCE ABL cannot be halted in edentulous people, but by using ISO instead of CCD for rehabilitation, resorption can be reduced.
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Radiographic and Histomorphologic Evaluation of the Maxillary Bone after Crestal Mini Sinus Lift Using Absorbable Collagen—Retrospective Evaluation. Dent J (Basel) 2022; 10:dj10040058. [PMID: 35448052 PMCID: PMC9024729 DOI: 10.3390/dj10040058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/09/2022] [Accepted: 03/24/2022] [Indexed: 02/05/2023] Open
Abstract
Background: After tooth extraction, the alveolar bone loses volume in height and width over time, meaning that reconstructive procedures may be necessary to perform implant placement. In the maxilla, to increase the bone volume, a mini-invasive surgery, such as a sinus lift using the crestal approach, could be performed. Methods: A crestal approach was used in this study to perform the sinus lift, fracturing the bone and inserting collagen (Condress®). The single dental implant was placed in the healed bone after six months. Results: The newly formed bone was histologically analyzed after healing. Histomorphological analyses confirmed the quality of the new bone formation even without graft biomaterials. This is probably due to the enlargement of the space, meaning more vascularization and stabilization of the coagulum. Conclusion: Using just collagen could be sufficient to induce proper new bone formation in particular clinical situations, with a minimally invasive surgery to perform a sinus lift.
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Taking 200 mg Vitamin C Three Times per Day Improved Extraction Socket Wound Healing Parameters: A Randomized Clinical Trial. Int J Dent 2022; 2022:6437200. [PMID: 35310461 PMCID: PMC8930268 DOI: 10.1155/2022/6437200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 01/20/2022] [Accepted: 02/11/2022] [Indexed: 12/24/2022] Open
Abstract
Vitamin C is essential for wound healing. However, there are no reports concerning the effect of a different dose of vitamin C on extraction wound size clinically. Therefore, the aim of this study was to investigate the effect of different oral vitamin C doses on extraction wound healing. A split-mouth, double-blind randomized clinical trial was performed in 42 patients who underwent symmetric bilateral noninfected premolar extraction. The patients were randomly divided into 3 groups, namely, P/600, P/1,500, and 600/1,500 (14 patients for each group); P/600: placebo vs. 600 mg vitamin C/d, P/1,500: placebo vs. 1,500 mg vitamin C/d, and 600/1,500: 600 mg vitamin C/d vs. 1,500 mg vitamin C/d. Patients were prescribed placebo or/and vitamin C three times a day for 10 days after each tooth extraction. Extraction wound size and pain score were evaluated. The wound assessment was performed on day 0, 7, and 21; and then the tooth on the other side was extracted using the same protocol. Pain score was recorded on the first three days after extraction. The reduced size of mesiodistal extraction wound in percentage reduction between day 0 and 7 of teeth receiving vitamin C 600 mg/d was more than that in placebo (P < 0.05). Pain scores on day 1–3 of teeth receiving vitamin C 600 mg/d were significantly lower than the placebo side (P < 0.05). Taking oral vitamin C 600 mg/d over three doses for 10 days after tooth extraction enhances extraction wound healing by reducing mesiodistal extraction wound and reduces postoperative pain.
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SEM and FT-MIR Analysis of Human Demineralized Dentin Matrix: An In Vitro Study. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Recently, the demineralized dentin matrix has been suggested as an alternative material to autologous bone grafts and xenografts for clinical purposes. The aim of this study was to investigate the effect of different times of demineralization on the chemical composition and the surface morphology of dentinal particles. Extracted teeth were ground and divided into 5 groups based on demineralization time (T0 = 0 min, T2 = 2 min, T5 = 5 min, T10 = 10 min, and T60 = 60 min) with 12% EDTA. The analysis was performed using Fourier-Transform Mid-Infrared spectroscopy (FT-MIR) and Scanning Electron Microscopy (SEM) (p < 0.05). The FT-MIR analysis showed a progressive reduction of the concentration of both PO43− and CO32− in the specimens (T0 > T2 > T5 > T10 > T60). On the contrary, the organic (protein) component did not undergo any change. The SEM examination showed that increasing the times of demineralization resulted in a smoother surface of the dentin particles and a higher number of dentinal tubules.
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Kijartorn P, Wongpairojpanich J, Thammarakcharoen F, Suwanprateeb J, Buranawat B. Clinical evaluation of 3D printed nano-porous hydroxyapatite bone graft for alveolar ridge preservation: A randomized controlled trial. J Dent Sci 2022; 17:194-203. [PMID: 35028038 PMCID: PMC8739241 DOI: 10.1016/j.jds.2021.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 02/08/2023] Open
Abstract
Background/purpose Ridge resorption after tooth extraction may result in inadequate bone volume and unfavorable ridge architecture for ideal implant placement. The use of bone substitutes has been advocated to fill extraction sites and to enhance primary implant stability. This study was made to evaluate the clinical efficacy of novel 3D printed nano-porous hydroxyapatite (3DP HA, test group) in comparison to nano-crystalline bone graft (NanoBone®, control group) in alveolar ridge preservation prior to implant placement. Materials and methods Thirty patients were randomized into two groups following tooth extraction. All extracted sockets were filled with 3DP HA or NanoBone® and covered with a non-resorbable membrane. After four months, cone-beam computed tomography (CBCT) and intraoral scanner were used to measure dimensional changes of bone and soft tissue surface. Bone core specimens were harvested for histological analysis during implant osteotomy. Implant stability was assessed using a modified damping capacity analysis. Results At four months postoperatively, dimensional changes in soft tissue surface resorption were less in the test group than in the control group; however, alveolar bone resorption was the same in both groups. Histological analysis revealed new bone formation, residual graft and fibrous connective tissue in both groups. The average primary implant stability (IST) value for both groups was approximately 70. There was no statistically significant difference in all parameters between two groups (p > 0.05). Conclusion 3DP HA could potentially be used as an alternative bone graft material for alveolar ridge preservation.
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Affiliation(s)
- Pennapa Kijartorn
- Department of Periodontology and Implantology, Faculty of Dentistry, Thammasat University, Pathum Thani, Thailand
| | - Jirapa Wongpairojpanich
- Department of Periodontology and Implantology, Faculty of Dentistry, Thammasat University, Pathum Thani, Thailand
| | - Faungchat Thammarakcharoen
- Biofunctional Materials and Devices Research Group, National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Jintamai Suwanprateeb
- Biofunctional Materials and Devices Research Group, National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Borvornwut Buranawat
- Department of Periodontology and Implantology, Faculty of Dentistry, Thammasat University, Pathum Thani, Thailand
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Bennardo F, Barone S, Vocaturo C, Nucci L, Antonelli A, Giudice A. Usefulness of Magnetic Mallet in Oral Surgery and Implantology: A Systematic Review. J Pers Med 2022; 12:jpm12010108. [PMID: 35055423 PMCID: PMC8781210 DOI: 10.3390/jpm12010108] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/09/2022] [Accepted: 01/11/2022] [Indexed: 01/03/2023] Open
Abstract
This systematic review aimed to answer the question: “Is the use of magnetic mallet effective in oral and implant surgery procedures in terms of tissue healing, surgery outcome, and complication rate compared to traditional instruments?” A literature search of PubMed, Scopus, and Web of Science databases (articles published until 1 October 2021) was conducted, in accordance with the PRISMA statement, using the keywords “magnetic mallet”, “electric mallet”, “oral surgery”, “implantology”, and “dental implant”. Of 252 articles, 14 were included in the review (3 for teeth extraction, and 11 for implant dentistry). Out of a total of 619 dental extractions (256 patients) performed with the magnetic mallet (MM), no complications were reported. Implants inserted totaled 880 (525 patients): 640 in the MM groups (382), and 240 in control groups (133). The survival rate of implants was 98.9% in the MM groups, and 95.42% in the control groups. Seven patients experienced benign paroxysmal positional vertigo after implant surgery, all in control groups. Results are not sufficient to establish the effectiveness of MM in oral and implant surgery procedures. Randomized controlled trials with a large sample size are needed.
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Affiliation(s)
- Francesco Bennardo
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy; (S.B.); (A.G.)
- Correspondence: (F.B.); (A.A.); Tel.: +39-346-180-2826 (F.B.); +39-392-231-8180 (A.A.)
| | - Selene Barone
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy; (S.B.); (A.G.)
| | | | - Ludovica Nucci
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Study of Campania, Luigi Vanvitelli, 80138 Naples, Italy;
| | - Alessandro Antonelli
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy; (S.B.); (A.G.)
- Correspondence: (F.B.); (A.A.); Tel.: +39-346-180-2826 (F.B.); +39-392-231-8180 (A.A.)
| | - Amerigo Giudice
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy; (S.B.); (A.G.)
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In vivo efficacy of low-level laser therapy on bone regeneration. Lasers Med Sci 2022; 37:2209-2216. [PMID: 35022870 DOI: 10.1007/s10103-021-03487-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE In clinical use of low-level laser therapy for bone regeneration (LLLT), application protocol (dose, duration, and repetitions) has not been established. This study aimed to depict a reliable dosage of LLLT by evaluating the efficacy of different dosing of LLLT (diode) on the healing of rabbit cranial defects. METHODS Critical size defects were prepared in calvarias of 26 New Zealand White Rabbits in such each animal containing both test and control groups. Test groups were irradiated with 4 Joule/cm2 (j/cm2), 6 j/cm2, and 8 j/cm2. The rabbits were subjected to six times of laser treatments in 10 days. At the end of the second week, 5 rabbits were sacrificed for histopathological and immunohistochemical analyses. At the 4th and 8th weeks, 20 rabbits (10 each) were sacrificed for micro-CT and histopathological analyses. RESULTS Micro-CT evaluation revealed improved new bone formation in all test groups compared to the control group. 6 j/cm2 group demonstrated the highest bone formation. The highest bone morphogenic protein -2 levels were found in the 4 j/cm2 group. Osteocalcin expression was significantly higher in 4 j/cm2 group. CONCLUSIONS Our findings indicate that LLLT have a positive effect on new bone formation. The high efficacy of doses of 4 j/cm2 and 6 j/cm2 is promising to promote early bone healing.
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Effects of insertion torque values on the marginal bone loss of dental implants installed in sheep mandibles. Sci Rep 2022; 12:538. [PMID: 35017552 PMCID: PMC8752839 DOI: 10.1038/s41598-021-04313-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/14/2021] [Indexed: 12/15/2022] Open
Abstract
The aim of the present in vivo study was to analyze and compare the effects on the crestal bone healing of two different implant macrogeometries installed in fresh socket areas and in normal bone areas with different insertion torque values. Two implant macrogeometries were used in the present study, DuoCone implant (DC) and Maestro implant (MAE), forming four groups: group DCws, in which the implants were installed in healing bone (without a socket); group DCfs, in which the implants were installed in post-extraction areas (fresh sockets); group MAEws, in which the implants were installed in healing bone (without a socket); group MAEfs, in which the implants were installed in post-extraction areas (fresh sockets). After 30 and 90 days of implantations in the bilateral mandibles of 10 sheep, eighty implants were evaluated through digital X-ray images and histologic slices. The crestal bone position in relation to the implant platform shoulder was measured and compared. The measured insertion torque was 47.2 ± 4.69 Ncm for the DCws group, 43.4 ± 4.87 Ncm for the DCfs group, 29.3 ± 3.16 Ncm for the MAEws group, and 27.7 ± 4.41 Ncm for the MAEfs group. The radiographic mesio-distal and histological bucco-lingual analyses showed significantly greater vertical bone loss in the implants installed with high torque (DC groups) in comparison to the implants installed with a low torque (MAE groups) (p < 0.05), at both evaluation times. In general, low insertion torque values (Maestro implants) showed better results of MBL when compared to implants installed with higher torque values (Duo Cone implants). Moreover, our results showed that the implants installed in the sites without sockets showed a less MBL in comparison with the implants installed in sites of fresh sockets.
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Azhar I, Ayulita D, Laksono H, Margaretha T. The efficiency of PRF, PTFE, and titanium mesh with collagen membranes for vertical alveolar bone addition in dental implant therapy: A narrative review. J Int Oral Health 2022. [DOI: 10.4103/jioh.jioh_7_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Tanongpitchayes K, Randorn C, Lamkhao S, Chokethawai K, Rujijanagul G, Na Lampang K, Somrup L, Boonyapakorn C, Thongkorn K. Effectiveness of a Nanohydroxyapatite-Based Hydrogel on Alveolar Bone Regeneration in Post-Extraction Sockets of Dogs with Naturally Occurring Periodontitis. Vet Sci 2021; 9:7. [PMID: 35051091 PMCID: PMC8777875 DOI: 10.3390/vetsci9010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/12/2021] [Accepted: 12/15/2021] [Indexed: 12/04/2022] Open
Abstract
Pathological mandibular fracture after dental extraction usually occurs in dogs with moderate to severe periodontitis. A nanohydroxyapatite-based hydrogel (HAP hydrogel) was developed to diminish the limitations of hydroxyapatite for post-extraction socket preservation (PSP). However, the effect of the HAP hydrogel in dogs has still not been widely investigated. Moreover, there are few studies on PSP in dogs suffering from clinical periodontitis. The purpose of this study was to evaluate the effectiveness of the HAP hydrogel for PSP in dogs with periodontitis. In five dogs with periodontitis, the first molar (309 and 409) of each hemimandible was extracted. Consequently, all the ten sockets were filled with HAP-hydrogel. Intraoral radiography was performed on the day of operation and 2, 4, 8 and 12 weeks post operation. The Kruskal-Wallis test and paired t-test were adopted for alveolar bone regeneration analysis. The results demonstrated that the radiographic grading, bone height measurement, and bone regeneration analysis were positively significant at all follow-up times compared to the day of operation. Moreover, the scanning electron microscopy with energy-dispersive X-ray spectroscopy imaging after immersion showed a homogeneous distribution of apatite formation on the hydrogel surface. Our investigation suggested that the HAP hydrogel effectively enhances socket regeneration in dogs with periodontitis and can be applied as a bone substitute for PSP in veterinary dentistry.
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Affiliation(s)
- Kittidaj Tanongpitchayes
- Master’s Degree Program in Veterinary Science, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand;
- Small Animal Hospital, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (L.S.); (C.B.)
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chamnan Randorn
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (C.R.); (S.L.)
| | - Suphatchaya Lamkhao
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (C.R.); (S.L.)
| | - Komsanti Chokethawai
- Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (K.C.); (G.R.)
| | - Gobwute Rujijanagul
- Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (K.C.); (G.R.)
| | - Kannika Na Lampang
- Department of Veterinary Bioscience and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand;
| | - Luddawon Somrup
- Small Animal Hospital, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (L.S.); (C.B.)
| | - Chavalit Boonyapakorn
- Small Animal Hospital, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (L.S.); (C.B.)
- Department of Companion Animals and Wildlife Clinic, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
- Integrative Research Center for Veterinary Circulatory Sciences, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Kriangkrai Thongkorn
- Small Animal Hospital, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (L.S.); (C.B.)
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Companion Animals and Wildlife Clinic, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
- Integrative Research Center for Veterinary Circulatory Sciences, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
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Alqhtani NR, Alqahtani AR, Alqahtani AM, Alazemi FN, Shukr AM, Alzahrani A, Almalki AK, Tarakji B, Alenzi A, Alzahrani KM. Study of Lateral Wall Thickness of the Maxillary Sinus in Left and Right Sides for Female and Male: A Cross Sectional Retrospective Study Using Cone Beam Computed Tomography. Curr Med Imaging 2021; 18:855-861. [PMID: 34879811 DOI: 10.2174/1573405617666211208124122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/05/2021] [Accepted: 10/25/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Dental implants are considered the first option to replace missing teeth. Alveolar bone resorption gradually progresses following tooth extraction leading to loss of vertical bone dimension for implant placement. The lateral window approach is the most commonly used procedure to treat vertical bone loss. OBJECTIVES The aim of the present study is to evaluate the lateral wall thickness (LWT) of the maxillary sinus and determine the influence of gender and side on maxillary LWT. METHODS This study involved a cross sectional retrospective study. Cone- beam computed tomography data were collected from 99 patients with a total of 198 maxillary sinuses that met the inclusion criteria. The patient age ranged from 18 to 35 years. On the selected sagittal section, the points of measurement are determined by a perpendicular line at 5 mm from the lowest point of the sinus floor. Measurements were done at four different areas; first premolar (P1), second premolar (P2), first molar (M1), and second molar (M2). Descriptive statistics were used to calculate mean lateral wall thickness for each tooth, and student's t-test was used to test the effect of gender and side on maxillary LWT. RESULTS The greatest mean LWT was observed around the left first maxillary molar (2.43±0.82), while the lowest mean LWT was observed around the right second maxillary premolar (1.62±0.61). There was no significant difference in the LWT around any tooth (M1 p=0.56, M2 p=0.92, P1 p=0.14, P2 p=0.19). CONCLUSION There was no significant difference in both males and females of the lateral wall thickness in the left and right side of maxillary sinus.
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Affiliation(s)
- Nasser Raqe Alqhtani
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, AlKharj 16245. Saudi Arabia
| | - Ali Robaian Alqahtani
- Department of conservative dental science , College of Dentistry , Prince Sattam Bin Abdulaziz University, Alkharj. Saudi Arabia
| | - Abdulaziz Maree Alqahtani
- Riyadh, Saudi arabia ,College of Dentistry , Prince Sattam Bin Abdulaziz University, Alkharj. Saudi Arabia
| | - Faisal Nahar Alazemi
- Riyadh, Saudi arabia ,College of Dentistry , Prince Sattam Bin Abdulaziz University, Alkharj. Saudi Arabia
| | - Abdulelah Mohammed Shukr
- Riyadh, Saudi arabia ,College of Dentistry , Prince Sattam Bin Abdulaziz University, Alkharj. Saudi Arabia
| | - Adel Alzahrani
- Department of oral medicine and diagnostic sciences ,college of dentistry , king saud university , Riyadh . Saudi Arabia
| | | | - Bassel Tarakji
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, AlKharj 16245. Saudi Arabia
| | - Adel Alenzi
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, AlKharj 16245. Saudi Arabia
| | - Khaled M Alzahrani
- Department of prosthetic dental sciences, college of dentistry, prince sattam bin abdulaziz university, 11942 Alharj . Saudi Arabia
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Agnihotri R, Gaur S. Applications of Teriparatide for Alveolar Bone Regeneration: A Systematic Review. J Int Soc Prev Community Dent 2021; 11:639-643. [PMID: 35036372 PMCID: PMC8713489 DOI: 10.4103/jispcd.jispcd_169_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 08/10/2021] [Accepted: 08/18/2021] [Indexed: 12/09/2022] Open
Abstract
AIM The aim of this study was to systematically review the applications of teriparatide (TP) for alveolar bone regeneration in oral cavity. MATERIALS AND METHODS An electronic search of the data was conducted in Medline (PubMed), Scopus, Web of Science, and Embase. The original research associated with the applications of TP for alveolar bone regeneration was evaluated. Cochrane's tool [for human randomized controlled trials (RCTs)] and SYRCLE's tool (for animal RCTs) were used to assess the risk of bias. About two human and four animal studies had low risk of bias. RESULTS The results from the 11 studies that were included in the review showed that TP enhanced alveolar bone formation in osteonecrosis of jaws, chronic periodontitis (CP), osseointegration of dental implants as well as orthodontic tooth movement. CONCLUSION The TP may be applied for alveolar bone regeneration in osteonecrosis of jaws and CP. However, further human clinical trials are required to verify its applications and adverse effects in various oral bone conditions.
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Affiliation(s)
- Rupali Agnihotri
- Department of Periodontology, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104, India
| | - Sumit Gaur
- Department of Pedodontics and Preventive Dentistry, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104, India,Address for correspondence: Dr. Sumit Gaur, Department of Pedodontics and Preventive Dentistry, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104, India. E-mail: ;
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Bone Regeneration of a 3D-Printed Alloplastic and Particulate Xenogenic Graft with rhBMP-2. Int J Mol Sci 2021; 22:ijms222212518. [PMID: 34830400 PMCID: PMC8624569 DOI: 10.3390/ijms222212518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/14/2021] [Accepted: 11/18/2021] [Indexed: 02/05/2023] Open
Abstract
This study aimed to evaluate the bone regeneration capacity of a customized alloplastic material and xenograft with recombinant human bone morphogenetic protein-2 (rhBMP-2). We prepared hydroxyapatite (HA)/tricalcium phosphate (TCP) pure ceramic bone blocks made using a 3D printing system and added rhBMP-2 to both materials. In eight beagle dogs, a total of 32 defects were created on the lower jaws. The defective sites of the negative control group were left untreated (N group; 8 defects), and those in the positive control group were filled with particle-type Bio-Oss (P group; 12 defects). The defect sites in the experimental group were filled with 3D-printed synthetic bone blocks (3D group; 12 defects). Radiographic and histological evaluations were performed after healing periods of 6 and 12 weeks and showed no significant difference in new bone formation and total bone between the P and 3D groups. The 3D-printed custom HA/TCP graft with rhBMP-2 showed bone regeneration effects similar to that of particulate Bio-Oss with rhBMP-2. Through further study and development, the application of 3D-printed customized alloplastic grafts will be extended to various fields of bone regeneration.
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Clarot S, Christensen BJ, Chapple AG, Block MS. Prediction of Residual Alveolar Bone Height in the Posterior Maxilla After Dental Extractions. J Oral Maxillofac Surg 2021; 80:517-524. [PMID: 34871583 DOI: 10.1016/j.joms.2021.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/16/2021] [Accepted: 11/04/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE After tooth extraction in the posterior maxilla, bone resorption often limits implant placement unless additional grafting procedures are performed. However, it is difficult to predict the amount of bone that will remain after extraction based on current evidence. The purpose of this study was to develop a method for predicting the postextraction alveolar bone height in the posterior maxilla. PATIENTS AND METHODS The authors conducted a retrospective cohort study that included all patients who were treated for the extraction and replacement of a maxillary first molar with a dental implant from 2008 to 2019. Potential predictor variables included thirteen pre-extraction radiographic measurements obtained via cone-beam computed tomography. The outcome variable was having more than 6 mm of bone height from the alveolar crest to the sinus floor after extraction. Decision tree analyses were used to search for the best predictors of this outcome using random forest analysis with a maximum of 3 randomly chosen covariates in each candidate tree. RESULTS A total of 63 patients were included in the study; 55.6% were women, and the mean age was 57.6 ± 14.5 years. In this study population, having a bone height from the furcation to the maxillary sinus floor of <6.7 mm had a 7.1% chance of having >6 mm of bone height postoperatively, whereas those patients with ≥6.7 mm at the same position preoperatively had a 61.9% chance of having >6 mm of bone height postoperatively (P < .001). CONCLUSIONS This study suggests that patients with <6.7 mm of bone from the furcation to the sinus are at increased risk of having insufficient bone to support a dental implant without additional grafting at the maxillary first molar position. When treating these patients, the surgeon should consider performing a procedure at the time of extraction to increase bone height or explain additional bone grafting is expected for ideal implant placement.
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Affiliation(s)
- Samuel Clarot
- Resident, Department of Oral & Maxillofacial Surgery, Louisiana State University Health Sciences Center, Metairie, LA
| | - Brian J Christensen
- Assistant Professor, Department of Oral & Maxillofacial Surgery, Louisiana State University Health Sciences Center, Metairie, LA.
| | - Andrew G Chapple
- Assistant Professor, Biostatistics Program, School of Public Health, Louisiana State University Health Sciences Center, Metairie, LA
| | - Michael S Block
- Clinical Professor, Department of Oral & Maxillofacial Surgery, Louisiana State University Health Sciences Center; Private Practice, Metairie, LA
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Minetti E, Celko M, Contessi M, Carini F, Gambardella U, Giacometti E, Santillana J, Beca Campoy T, Schmitz JH, Libertucci M, Ho H, Haan S, Mastrangelo F. Implants Survival Rate in Regenerated Sites with Innovative Graft Biomaterials: 1 Year Follow-Up. MATERIALS 2021; 14:ma14185292. [PMID: 34576516 PMCID: PMC8472708 DOI: 10.3390/ma14185292] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/07/2021] [Accepted: 09/09/2021] [Indexed: 01/26/2023]
Abstract
In thirteen different dental clinics in Singapore, Spain, Czech Republic and Italy, 504 patients were selected, and 483 dental implants were placed in maxillary sites after alveolar socket preservation (ASP) procedures with an autologous demineralized tooth extracted as graft material from an innovative Tooth Transformer device was obtained. All procedures used were reported in n°638 Ethical Committee surgical protocol of University of Chieti and approved. After 4 months, at dental implant placing, bone biopsies were performed to evaluate the histologic outcomes, and 12 months after implant loading, global implant survival rate, failure percentage and peri-implant bone loss were detected. After ASP, only 27 post-operative complications were observed and after 4 months, bone biopsy histomorphometric analysis showed a high percentage of bone volume (BV) 43.58 (±12.09), and vital new bone (NB) 32.38 (±17.15) with an absence of inflammation or necrosis areas. Twelve months after loading, only 10 dental implants failed (2.3%), with a 98.2% overall implant survival rate, nine cases showed mucositis (1.8%) and eight showed peri-implantitis (1.6%). At mesial sites, 0.43 mm (±0.83) of bone loss around the implants was detected and 0.23 mm (±0.38) at the distal sites with an average value of 0.37 mm (±0.68) (p > 0.568). Several studies with a longer follow-up will be necessary to confirm the preliminary data observed. However, clinical results seem to suggest that the post-extraction socket preservation procedure using innovative demineralized autologous tooth-derived biomaterial may be a predictable procedure to produce new vital bone able to support dental implant rehabilitation of maxilla edentulous sites.
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Affiliation(s)
- Elio Minetti
- Department of Biomedical, Surgical, Dental Science, University of Milan, 20161 Milan, Italy
- Correspondence: (E.M.); (F.M.)
| | - Martin Celko
- Independent Researcher, 500 02 Hradec Kralove, Czech Republic;
| | | | - Fabrizio Carini
- Department School of Medicine and Surgery, University of Milano Bicocca, 20100 Milan, Italy;
| | | | - Edoardo Giacometti
- Department of Medical Sciences and Diagnostic Integrated, University of Genoa, 16121 Genova, Italy;
| | | | | | | | | | - Henrykim Ho
- Independent Researcher, Singapore 238863, Singapore; (H.H.); (S.H.)
| | - Simon Haan
- Independent Researcher, Singapore 238863, Singapore; (H.H.); (S.H.)
| | - Filiberto Mastrangelo
- Clinical and Experimental Medicine Department, School of Dentistry University of Foggia, 71122 Foggia, Italy
- Correspondence: (E.M.); (F.M.)
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Kim SH, Cha KS, Lee JW, Lee SM. Mandibular skeletal posterior anatomic limit for molar distalization in patients with Class III malocclusion with different vertical facial patterns. Korean J Orthod 2021; 51:250-259. [PMID: 34275881 PMCID: PMC8290085 DOI: 10.4041/kjod.2021.51.4.250] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 11/10/2022] Open
Abstract
Objective The aim of this study was to compare the differences in mandibular posterior anatomic limit (MPAL) distances stratified by vertical patterns in patients with skeletal Class III malocclusion by using cone-beam computed tomography (CBCT). Methods CBCT images of 48 patients with skeletal Class III malocclusion (mean age, 22.8 ± 3.1 years) categorized according to the vertical patterns (hypodivergent, normodivergent, and hyperdivergent; n = 16 per group) were analyzed. While parallel to the posterior occlusal line, the shortest linear distances from the distal root of the mandibular second molar to the inner cortex of the mandibular body were measured at depths of 4, 6, and 8 mm from the cementoenamel junction. MPAL distances were compared between the three groups, and their correlations were analyzed. Results The mean ages, sex distribution, asymmetry, and crowding in the three groups showed no significant differences. MPAL distance was significantly longer in male (3.8 ± 2.6 mm) than in female (1.8 ± 1.2 mm) at the 8-mm root level. At all root levels, MPAL distances were significantly different in the hypodivergent and hyperdivergent groups (p < 0.001) and between the normodivergent and hyperdivergent groups (p < 0.01). MPAL distances were the shortest in the hyperdivergent group. The mandibular plane angle highly correlated with MPAL distances at all root levels (p < 0.01). Conclusions MPAL distances were the shortest in patients with hyperdivergent patterns and showed a decreasing tendency as the mandibular plane angle increased. MPAL distances were significantly shorter (~3.16 mm) at the 8-mm root level.
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Affiliation(s)
- Sung-Ho Kim
- Department of Orthodontics, Dankook University College of Dentistry, Cheonan, Korea
| | - Kyung-Suk Cha
- Department of Orthodontics, Dankook University College of Dentistry, Cheonan, Korea
| | - Jin-Woo Lee
- Department of Orthodontics, Dankook University College of Dentistry, Cheonan, Korea
| | - Sang-Min Lee
- Department of Orthodontics, Dankook University College of Dentistry, Cheonan, Korea
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Pandya M, Saxon M, Bozanich J, Tillberg C, Luan X, Diekwisch TG. The Glycoprotein/Cytokine Erythropoietin Promotes Rapid Alveolar Ridge Regeneration In Vivo by Promoting New Bone Extracellular Matrix Deposition in Conjunction with Coupled Angiogenesis/Osteogenesis. Int J Mol Sci 2021; 22:2788. [PMID: 33801825 PMCID: PMC8002021 DOI: 10.3390/ijms22062788] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/01/2021] [Accepted: 03/05/2021] [Indexed: 12/20/2022] Open
Abstract
The loss of bone following tooth extraction poses a significant clinical problem for maxillofacial esthetics, function, and future implant placement. In the present study, the efficacy of an erythropoietin-impregnated collagen scaffold as an alveolar ridge augmentation material versus a conventional collagen scaffold and a BioOss inorganic bovine bone xenograft was examined. The collagen/Erythropoietin (EPO) scaffold exhibited significantly more rapid and complete osseous regeneration of the alveolar defect when compared to bone xenograft and the collagen membrane alone. The new EPO induced extracellular matrix was rich in Collagen I, Collagen III, Fibronectin (Fn) and E-cadherin, and featured significantly increased levels of the osteogenic transcription factors Runt-related transcription factor 2 (Runx2) and Osterix (Osx). Histomorphometric evaluation revealed a significant two-fold increase in the number of capillaries between the EPO and the BioOss group. Moreover, there was a highly significant 3.5-fold higher level of vascular endothelial growth factor (VEGF) in the collagen/EPO-treated group compared to controls. The significant effect of EPO on VEGF, FN, and RUNX2 upregulation was confirmed in vitro, and VEGF pathway analysis using VEGF inhibitors confirmed that EPO modulated extracellular matrix protein expression through VEGF even in the absence of blood vessels. Together, these data demonstrate the effectiveness of an EPO-impregnated collagen scaffold for bone regeneration as it induces rapid matrix production and osseoinduction adjacent to new capillaries via VEGF.
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Affiliation(s)
- Mirali Pandya
- Center for Craniofacial Research and Diagnosis, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.P.); (C.T.); (X.L.)
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
| | - Matthew Saxon
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
| | - John Bozanich
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
| | - Connie Tillberg
- Center for Craniofacial Research and Diagnosis, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.P.); (C.T.); (X.L.)
| | - Xianghong Luan
- Center for Craniofacial Research and Diagnosis, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.P.); (C.T.); (X.L.)
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
| | - Thomas G.H. Diekwisch
- Center for Craniofacial Research and Diagnosis, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.P.); (C.T.); (X.L.)
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
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Fang J, Xin XR, Li W, Wang HC, Lv HX, Zhou YM. Immediate implant placement in combination with platelet rich-fibrin into extraction sites with periapical infection in the esthetic zone: A case report and review of literature. World J Clin Cases 2021; 9:960-969. [PMID: 33585645 PMCID: PMC7852644 DOI: 10.12998/wjcc.v9.i4.960] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/02/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In this case, platelet-rich fibrin (PRF) was added to guided tissue regeneration as a biomaterial in proper order for immediate planting in aesthetic area with periapical infection.
CASE SUMMARY With the history of endodontic failure in maxillary central incisor, a 34-year-old female patient required the extraction of maxillary anterior residual root and immediate implantation. Cone beam computed tomography and clinical observation were used to assess the regeneration of soft and bone tissue. Before operation, cone beam computed tomography showed the anterior residual root had serious periapical periodontitis with insufficient labial bone in the aesthetic zone. The patient underwent immediate implant placement and reconstruction of the bone substitution by modified guided bone regeneration. The barrier was a three-layer structure of PRF-collagen membrane-PRF that covered the mixture of PRF and Bio-Oss to promote both osteogenesis and soft tissue healing. At 6 mo postoperatively, the definitive crown was placed after accomplished finial impression. One-year follow-up showed a satisfactory aesthetic effect with no obvious absorption of the labial bone and soft tissue.
CONCLUSION The use of PRF in combination with guided bone regeneration can serve as a reliable and simple adjuvant for immediate implanting in infected socket and result in a stable osteogenic effect with good aesthetic outcome.
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Affiliation(s)
- Jiao Fang
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China
| | - Xi-Rui Xin
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China
| | - Wen Li
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China
| | - Han-Chi Wang
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China
| | - Hui-Xin Lv
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China
| | - Yan-Min Zhou
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China
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Faadhila TI, Valentina MN, Munadziroh E, Nirwana I, Soekartono H, Surboyo MDC. Bovine sponge amnion stimulates socket healing: A histological analysis. J Adv Pharm Technol Res 2021; 12:99-103. [PMID: 33532364 PMCID: PMC7832188 DOI: 10.4103/japtr.japtr_128_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/21/2020] [Accepted: 11/27/2020] [Indexed: 11/09/2022] Open
Abstract
Bovine sponge amnion (BSA) is made from bovine amniotic membrane, which contains several growth factors with the ability to suppress inflammation and stimulate the healing process. The healing process of the socket is clinically marked by the proliferation of fibroblasts, formation of new blood vessels, and closure of the wound site. Fibroblasts and new blood vessels are the common histological indicators of tissue regeneration. Twenty-four lower anterior teeth were extracted from the rats. The socket was then applied with BSA and sutured, while a control group was only sutured. The animals were scarified 3, 7, and 14 days after application, and the mandibular was isolated. Histological analysis of socket tissue used the staining of hematoxylin and eosin to analyze the new blood vessels and fibroblasts. An independent t-test was used to analyze the fibroblasts and new blood vessels in each group, with P < 0.05 considered as significant. The number of fibroblasts is higher in the BSA group compared others groups at 3, 7, and 14 days (P < 0.05). The new blood vessel count is higher compared to the control group at only 3 and 7 days (P < 0.05). BSA aids the regeneration of the socket after tooth extraction by stimulating fibroblast proliferation and formation of new blood vessels.
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Affiliation(s)
- Tabita Imaniar Faadhila
- Department of Dental Material and Technology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Martha Nadila Valentina
- Department of Dental Material and Technology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Elly Munadziroh
- Department of Dental Material and Technology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Intan Nirwana
- Department of Dental Material and Technology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Helal Soekartono
- Department of Dental Material and Technology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
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Xie Y, Li S, Zhang T, Wang C, Cai X. Titanium mesh for bone augmentation in oral implantology: current application and progress. Int J Oral Sci 2020; 12:37. [PMID: 33380722 PMCID: PMC7773733 DOI: 10.1038/s41368-020-00107-z] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 02/05/2023] Open
Abstract
Guided bone regeneration (GBR) is an effective and simple method for bone augmentation, which is often used to reconstruct the alveolar ridge when the bone defect occurs in the implant area. Titanium mesh has expanded the indications of GBR technology due to its excellent mechanical properties and biocompatibility, so that the GBR technology can be used to repair alveolar ridges with larger bone defects, and can obtain excellent and stable bone augmentation results. Currently, GBR with titanium mesh has various clinical applications, including different clinical procedures. Bone graft materials, titanium mesh covering methods, and titanium mesh fixing methods are also optional. Moreover, the research of GBR with titanium mesh has led to multifarious progresses in digitalization and material modification. This article reviews the properties of titanium mesh and the difference of titanium mesh with other barrier membranes; the current clinical application of titanium mesh in bone augmentation; common complications and management and prevention methods in the application of titanium mesh; and research progress of titanium mesh in digitization and material modification. Hoping to provide a reference for further improvement of titanium mesh in clinical application and related research of titanium mesh.
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Affiliation(s)
- Yu Xie
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Head and Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Songhang Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Head and Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tianxu Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Head and Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chao Wang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Head and Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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Zhao F, Yang Z, Liu L, Chen D, Shao L, Chen X, Fz, Ls, Fz, Zy, Ll, Xc, Dc, Xc, Ls, Fz, Xc. Design and evaluation of a novel sub-scaffold dental implant system based on the osteoinduction of micro-nano bioactive glass. BIOMATERIALS TRANSLATIONAL 2020; 1:82-88. [PMID: 35837658 PMCID: PMC9255813 DOI: 10.3877/cma.j.issn.2096-112x.2020.01.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/26/2020] [Accepted: 10/30/2020] [Indexed: 12/16/2022]
Abstract
Alveolar ridge atrophy brings great challenges for endosteal implantation due to the lack of adequate vertical bone mass to hold the implants. To overcome this limitation, we developed a novel dental implant design: sub-scaffold dental implant system (SDIS), which is composed of a metal implant and a micro-nano bioactive glass scaffold. This implant system can be directly implanted under mucous membranes without adding any biomolecules or destroying the alveolar ridge. To evaluate the performance of the novel implant system in vivo, SDISs were implanted into the sub-epicranial aponeurosis space of Sprague-Dawley rats. After 6 weeks, the SDIS and surrounding tissues were collected and analysed by micro-CT, scanning electron microscopy and histology. Our results showed that SDISs implanted into the sub-epicranial aponeurosis had integrated with the skull without any mobility and could stably support a denture. Moreover, this design achieved alveolar ridge augmentation, as active osteogenesis could be observed outside the cortical bone. Considering that the microenvironment of the sub-epicranial aponeurosis space is similar to that of the alveolar ridge, SDISs have great potential for clinical applications in the treatment of atrophic alveolar ridges. The study was approved by the Animal Care Committee of Guangdong Pharmaceutical University (approval No. 2017370).
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Affiliation(s)
- Fujian Zhao
- Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zhen Yang
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong Province, China,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong Province, China
| | - Lu Liu
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong Province, China,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong Province, China
| | - Dafu Chen
- Laboratory of Bone Tissue Engineering, Beijing Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Beijing, China
| | - Longquan Shao
- Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong Province, China,Corresponding authors: Xiaofeng Chen, ; Longquan Shao,
| | - Xiaofeng Chen
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong Province, China,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong Province, China,Corresponding authors: Xiaofeng Chen, ; Longquan Shao,
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Rinaldi M, De Neef B, Loomans NAJ, Mommaerts MY. Guidelines for the Use of Resection Guides for Subperiosteal Maxillary Implants in Cases of Terminal Dentition - A Novel Approach. Ann Maxillofac Surg 2020; 10:467-471. [PMID: 33708597 PMCID: PMC7944013 DOI: 10.4103/ams.ams_135_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/30/2020] [Accepted: 08/01/2020] [Indexed: 11/06/2022] Open
Abstract
Introduction: We described our rationale and experiences with the use of cutting jigs for vertical ostectomy in cases of terminal maxillary dentition when edentulation and an additively manufactured subperiosteal jaw implant (AMSJI®) are planned. Material and Methods: Our experience covers 15 patients treated by four clinicians. We tabulated our criteria for planning and manufacturing vertical and horizontal ostectomy guides. Results: In order to guarantee accurate osteotomy, titanium guides are preferable to guides made of polymer. The most important consideration is to avoid acute angles in the buccal arms of the AMSJI®. It is up to the surgeon whether to screw-fix the ostectomy guides or to use handles to maintain their position. Discussion: Guided ostectomy has the potential to extend the use of AMSJI® to cases where teeth have yet to be removed or where the contours of the residual bone are not favorable. The use of guided ostectomy in such cases lessens the time between edentulation and implantation and improves the design of the implants.
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Affiliation(s)
- Marco Rinaldi
- Department of Odontostomatology, Clinica Privata Villalba, Bologna, Italy
| | - Björn De Neef
- Department of Oro-Maxillo-Facial Surgery, General Hospital Oudenaarde, Oudenaarde, Belgium
| | | | - Maurice Y Mommaerts
- Cranio-Maxillo-Facial and Facial Plastic Surgeon, European Face Centre, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
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Orofacial Trauma on the Anterior Zone of a Trumpet's Player Maxilla: Concept of the Oral Rehabilitation-A Case Report. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249423. [PMID: 33339137 PMCID: PMC7765605 DOI: 10.3390/ijerph17249423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 12/26/2022]
Abstract
Background: The occurrence of an orofacial trauma can originate health, social, economic and professional problems. A 13-year boy suffered the avulsion of tooth 11 and 21, lost at the scenario. Methods: Three intraoral appliances were manufactured: A Hawley appliance with a central expansion screw and two central incisors (1), trumpet edentulous anterior tooth appliance (2) and a customized splint (3) were designed as part of the rehabilitation procedure. Objectively assessing the sound quality of the trumpet player with these new devices in terms of its spectral, temporal, and spectro-temporal audio properties. A linear frequency response microphone was adopted for precision measurement of pitch, loudness, and timbre descriptors. Results: Pitch deviations may result from the different intra-oral appliances due to the alteration of the mouth cavity, respectively, the area occupied and modification/interaction with the anatomy. This investigation supports the findings that the intra-oral appliance which occupies less volume is the best solution in terms of sound quality. Conclusions: Young wind instrumentalists should have dental impressions of their teeth made, so their dentist has the most reliable anatomy of the natural teeth in case of an orofacial trauma. Likewise, the registration of their sound quality should be done regularly to have standard parameters for comparison.
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A Suggested Approach of Managing Excessive Maxillary Gingival Display in Terminal Dentition. Case Rep Dent 2020; 2020:6975275. [PMID: 33274082 PMCID: PMC7695486 DOI: 10.1155/2020/6975275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 09/20/2020] [Accepted: 10/09/2020] [Indexed: 11/30/2022] Open
Abstract
The aim of this paper is to report a suggested approach for the management of excessive maxillary gingival display with terminal dentition. A segmental osteotomy of the maxillary process was performed, and the latter used as grafting material for lateral sinus augmentation that was performed simultaneously. Following the graft maturation period, implants were inserted and rehabilitated with a fixed dentogingival prosthesis. Consequently, the mandible was prosthetically restored following the new occlusal plane dictated by the rehabilitated maxilla. Clinically, the procedure showed a drastic improvement in the patient's appearance, eliminating the excessive gingival display. Radiologically, it led to a vertical translation of the maxillary process level in an apical direction. Nevertheless, the resected process used as grafting material was noticed to have a suboptimal behavior as long as it showed increased intrasinusal resorption, barely sufficient for a regular implant accommodation. The described therapy concept seems to be a plausible approach when it comes to manage excessive maxillary gingival displays in edentulous patients or those presenting a terminal dentition. However, at the time of sinus augmentation, authors recommend to graft a mixture of resected maxillary process and a bone substitute material, in order to get more stable results.
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Yao Y, Kauffmann F, Maekawa S, Sarment LV, Sugai JV, Schmiedeler CA, Doherty EJ, Holdsworth G, Kostenuik PJ, Giannobile WV. Sclerostin antibody stimulates periodontal regeneration in large alveolar bone defects. Sci Rep 2020; 10:16217. [PMID: 33004873 PMCID: PMC7530715 DOI: 10.1038/s41598-020-73026-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 09/08/2020] [Indexed: 02/06/2023] Open
Abstract
Destruction of the alveolar bone in the jaws can occur due to periodontitis, trauma or following tumor resection. Common reconstructive therapy can include the use of bone grafts with limited predictability and efficacy. Romosozumab, approved by the FDA in 2019, is a humanized sclerostin-neutralizing antibody (Scl-Ab) indicated in postmenopausal women with osteoporosis at high risk for fracture. Preclinical models show that Scl-Ab administration preserves bone volume during periodontal disease, repairs bone defects surrounding dental implants, and reverses alveolar bone loss following extraction socket remodeling. To date, there are no studies evaluating Scl-Ab to repair osseous defects around teeth or to identify the efficacy of locally-delivered Scl-Ab for targeted drug delivery. In this investigation, the use of systemically-delivered versus low dose locally-delivered Scl-Ab via poly(lactic-co-glycolic) acid (PLGA) microspheres (MSs) was compared at experimentally-created alveolar bone defects in rats. Systemic Scl-Ab administration improved bone regeneration and tended to increase cementogenesis measured by histology and microcomputed tomography, while Scl-Ab delivered by MSs did not result in enhancements in bone or cemental repair compared to MSs alone or control. In conclusion, systemic administration of Scl-Ab promotes bone and cemental regeneration while local, low dose delivery did not heal periodontal osseous defects in this study.
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Affiliation(s)
- Yao Yao
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109-2800, USA
| | - Frederic Kauffmann
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109-2800, USA
- Department of Oral and Craniomaxillofacial Surgery, Center for Dental Medicine, University Medical Center Freiburg, 79110, Freiburg, Germany
| | - Shogo Maekawa
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109-2800, USA
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Lea V Sarment
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109-2800, USA
| | - James V Sugai
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109-2800, USA
| | - Caroline A Schmiedeler
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109-2800, USA
| | - Edward J Doherty
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Cambridge, MA, 02115, USA
| | | | - Paul J Kostenuik
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
| | - William V Giannobile
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA.
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109-2800, USA.
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, 48019, USA.
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, 02115, USA.
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Bagegni A, Spies BC, Kern M, Hazard D, Kohal R. The influence of prosthetic crown height and implant-abutment connection design selection on the long-term implant-abutment stability: A laboratory study. J Mech Behav Biomed Mater 2020; 113:104095. [PMID: 33017717 DOI: 10.1016/j.jmbbm.2020.104095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/09/2020] [Accepted: 09/14/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND AIM Long-term edentulism associated with vertical loss of alveolar bone might lead to increased suprastructure height. This study aimed to evaluate the effect of suprastructure height on the stability of the implant-abutment connection by investigating the stability of two different two-piece titanium implants with internal hexagonal or conical connections under simulated oral loading conditions. MATERIALS AND METHODS A total of 48 specimens were used. The specimens were divided into 2 groups according to their implant-abutment connection (group H: internal hex connection, group C: conical connection). Each group was further divided into 3 groups according to the applied suprastructure height (H1; C1: 10 mm, H2; C2: 14 mm and H3; C3: 18 mm) (n = 8). All specimens were subjected to a cyclic loading force of 98 N for 5 million simulated chewing cycles. Then, all implants that survived the chewing simulation were quasi-statically loaded until failure. The monotonic-failure load and monotonic-bending moment at failure were evaluated. RESULTS After the dynamic chewing loading, the implants showed the following survival rates: group H: 95.8%; group C: 100%. The implant suprastructures revealed survival rates of 100% and 91.5% for groups H and C, respectively. After the artificial chewing simulation of 5 million cycles, some implants in the groups with higher crowns (14 mm and 18 mm) showed crack formation and plastic deformations under the light microscope. Regarding monotonic-failure load, implants with shorter suprastructures (10 mm) revealed higher resistance to failure (C1: 1496 and H1: 1201 N) than longer suprastructures (18 mm) (C3: 465 and H3: 585 N) which was expected. The mean monotonic-bending moment values at failure ranged from 400.7 Ncm to 673.3 Ncm. CONCLUSION Implant-supported restorations with increased crown height are considered stable for an extended time period (5 million cycles which equals approximately 20 years clinical service) and a reliable treatment option in case of increased inter-arch distance. There was no difference in stability of the two internal connections. Nevertheless, the integrity of implant components might be impaired when crowns with increased heights are applied.
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Affiliation(s)
- Aimen Bagegni
- Medical Center - University of Freiburg, Center for Dental Medicine, Department of Prosthetic Dentistry, Faculty of Medicine - University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany.
| | - Benedikt C Spies
- Medical Center - University of Freiburg, Center for Dental Medicine, Department of Prosthetic Dentistry, Faculty of Medicine - University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany.
| | - Matthias Kern
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Arnold-Heller-Straße 3, 24105, Kiel, Germany.
| | - Derek Hazard
- Medical Center - University of Freiburg, Institute of Medical Biometry and Statistics, Faculty of Medicine - University of Freiburg, Ernst-Zermelo-Straße 1, 79104, Freiburg, Germany.
| | - Ralf Kohal
- Medical Center - University of Freiburg, Center for Dental Medicine, Department of Prosthetic Dentistry, Faculty of Medicine - University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany.
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Noelken R, Pausch T, Wagner W, Al‐Nawas B. Peri‐implant defect grafting with autogenous bone or bone graft material in immediate implant placement in molar extraction sites—1‐ to 3‐year results of a prospective randomized study. Clin Oral Implants Res 2020; 31:1138-1148. [DOI: 10.1111/clr.13660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 07/29/2020] [Accepted: 08/13/2020] [Indexed: 01/16/2023]
Affiliation(s)
- Robert Noelken
- Private Practice for Oral Surgery Lindau/Lake Constance Germany
- Department of Oral and Maxillofacial Surgery – Plastic Surgery University Medical CenterJohannes Gutenberg University of Mainz Mainz Germany
| | - Tobias Pausch
- Private Practice for Oral Surgery Weiden in the Upper Palatinate Weiden Germany
| | - Wilfried Wagner
- Department of Oral and Maxillofacial Surgery – Plastic Surgery University Medical CenterJohannes Gutenberg University of Mainz Mainz Germany
| | - Bilal Al‐Nawas
- Department of Oral and Maxillofacial Surgery – Plastic Surgery University Medical CenterJohannes Gutenberg University of Mainz Mainz Germany
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Fok MR, Pelekos G, Tonetti MS. Feasibility and needs for simultaneous or staged bone augmentation to place prosthetically guided dental implants after extraction or exfoliation of first molars due to severe periodontitis. J Clin Periodontol 2020; 47:1237-1247. [PMID: 32652610 DOI: 10.1111/jcpe.13344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 06/27/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND The aim of this study was to retrospectively assess bone volumes, healed ridge topography and possibility to plan prosthetically guided implants (PGI) at least 6 months after extraction or exfoliation of first molars as a consequence of terminal periodontitis (EEFMP). MATERIALS AND METHODS 45 subjects with stage III-IV periodontitis providing 74 extraction sites (maxillary = 51 and mandibular = 23) were included. The degree of residual periodontal support on each root was assessed by combining periodontal and radiographic data. Digital planning of PGI with 4.8/4.1 mm diameter, 8 mm long, root-form dental implant and need for bone augmentation (BA) were performed using CBCT with a radiographic stent. Possibility of standard implant placement (STANDARD) and need for simultaneous or staged BA were assessed. RESULTS Planning PGI placement was possible in all cases. For a 4.8 mm diameter implant, STANDARD was possible in 37.8% of the sites, 33.8% required BA at the time of implant placement, and 28.4% required staged BA before PGI. The use of 4.1 mm rather than 4.8 mm diameter implant allowed STANDARD in an additional 8.1% of cases that originally required simultaneous BA/osteotome sinus floor elevation (OSFE). The level of periodontal bone loss did not predict the complexity of implant placement, but significant differences were observed comparing maxillary with mandibular sites. CONCLUSION PGI planning at sites with first molar loss due to terminal periodontitis is possible but poses great challenge to rehabilitation, often requiring advanced augmentation procedures and sinus augmentation.
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Affiliation(s)
- Melissa Rachel Fok
- Division of Periodontology and Implant dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - George Pelekos
- Division of Periodontology and Implant dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Maurizio S Tonetti
- Division of Periodontology and Implant dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.,European Research Group on Periodontology (ERGOPerio), Genova, Italy.,Department of Oral and Maxillo-facial Implantology, Shanghai Key Laboratory of Stomatology, National Clinical Research Centre for Stomatology, Shanghai Ninth People Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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50
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Buzayan MM, Mahdey HM, Ning CJ. A new approach for better anterior esthetic using platelet-rich fibrin as sole graft material combined with ovate design dental bridge. J Indian Prosthodont Soc 2020; 20:219-223. [PMID: 32655228 PMCID: PMC7335022 DOI: 10.4103/jips.jips_264_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 09/11/2019] [Accepted: 02/24/2020] [Indexed: 12/19/2022] Open
Abstract
Alveolar ridge deficiency is considered a major esthetic limitation, especially in the maxillary anterior region. Several approaches have been developed to enhance and increase the soft-tissue volume. Among those approaches are connective tissue grafts, platelet-rich fibrin (PRF) membrane and implying the guided bone regeneration concept. The PRF grafting technique was employed in this clinical case to improve and enhance the anterior esthetic without the need for the bone graft and augmentation. This article describes the use of PRF as a sole grafting material for both socket and soft-tissue augmentation for a 23-year-old male, who had an accident 8 years ago while he was playing a basketball, which caused his upper front teeth to be intruded and discolored. The upper left central tooth suffered a major external root resorption; hence, it was extracted. PRF was prepared and packed in and extruded out of the socket. This was combined with ovate design provisional bridge. Ten days, 1 month, 3 months, and 6 months postoperative review showed a significantly well-progressed healing. According to the encouraging result obtained in this clinical case in regard to tissue healing and esthetic, the PRF can be a potential sole graft material for small anterior deficient areas. This may reduce the need of bone augmentation and graft in such selected cases.
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Affiliation(s)
- Muaiyed Mahmoud Buzayan
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Haydar Majeed Mahdey
- Department of Oral Surgery, Faculty of Dentistry, SEGi University, Petaling Jaya, Malaysia
| | - Chong Jun Ning
- Department of Prosthodontic Dentistry, Faculty of Dentistry, SEGi University, Petaling Jaya, Malaysia
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