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Sanhueza C, Pavéz M, Hermosilla J, Rocha S, Valdivia-Gandur I, Manzanares MC, Beltrán V, Acevedo F. Poly-3-hydroxybutyrate-silver nanoparticles membranes as advanced antibiofilm strategies for combatting peri-implantitis. Int J Biol Macromol 2024; 269:131974. [PMID: 38692546 DOI: 10.1016/j.ijbiomac.2024.131974] [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: 10/31/2023] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
Dental implant success is threatened by peri-implantitis, an inflammation leading to implant failure. Conventional treatments struggle with the intricate microbial and host factors involved. Antibacterial membranes, acting as barriers and delivering antimicrobials, may offer a promising solution. Thus, this study highlights the potential of developing antibacterial membranes of poly-3-hydroxybutyrate and silver nanoparticles (Ag Nps) to address peri-implantitis challenges, discussing design and efficacy against potential pathogens. Electrospun membranes composed of PHB microfibers and Ag Nps were synthesized in a blend of DMF/chloroform at three different concentrations. Various studies were conducted on the characterization and antimicrobial activity of the membranes. The synthesized Ag Nps ranged from 4 to 8 nm in size. Furthermore, Young's modulus decreased, reducing from 13.308 MPa in PHB membranes without Ag Nps to 0.983 MPa in PHB membranes containing higher concentrations of Ag Nps. This demonstrates that adding Ag Nps results in a less stiff membrane. An increase in elongation at break was noted with the rise in Ag Nps concentration, from 23.597 % in PHB membranes to 60.136 % in PHB membranes loaded with Ag Nps. The antibiotic and antibiofilm activity of the membranes were evaluated against Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus mutans, and Candida albicans. The results indicated that all PHB membranes containing Ag Nps exhibited potent antibacterial activity by inhibiting the growth of biofilms and planktonic bacteria. However, inhibition of C. albicans occurred only with the PHB-Ag Nps C membrane. These findings emphasize the versatility and potential of Ag Nps-incorporated membranes as a multifunctional approach for preventing and addressing microbial infections associated with peri-implantitis. The combination of antibacterial and antibiofilm properties in these membranes holds promise for improving the management and treatment of peri-implantitis-related complications.
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Affiliation(s)
- Claudia Sanhueza
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Mónica Pavéz
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Jeyson Hermosilla
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Casilla 54-D, Temuco, Chile; Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Sebastián Rocha
- Escuela de Ingeniería, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Temuco, Chile
| | - Iván Valdivia-Gandur
- Biomedical Department, Universidad de Antofagasta, Av. Angamos 601, Antofagasta, Chile
| | - María-Cristina Manzanares
- Human Anatomy and Embryology Unit, Experimental Pathology and Therapeutics Department, Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Víctor Beltrán
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Clinical Investigation and Dental Innovation Center (CIDIC), Dental School, Universidad de La Frontera, Temuco, Chile; Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile.
| | - Francisca Acevedo
- Center of Excellence in Translational Medicine - Scientific and Technology Bioresource Nucleus (CEMT- BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Basic Sciences, Faculty of Medicine, Universidad de La Frontera, Casilla 54-D, Temuco, Chile.
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Kim YR, Yun EB, Ryu DI, Kim BH, Kim JS, Kim YS, Kang JH, Cho EH, Koh JT, Lim HP, Park C, Lee BN. The potential bone regeneration effects of leptin- and osteolectin-coated 3D-printed PCL scaffolds: an in vivostudy. Biomed Mater 2024; 19:045008. [PMID: 38688311 DOI: 10.1088/1748-605x/ad45d7] [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: 11/29/2023] [Accepted: 04/30/2024] [Indexed: 05/02/2024]
Abstract
This study investigated the effectiveness of bone regeneration upon the application of leptin and osteolectin to a three-dimensional (3D) printed poly(ϵ-caprolactone) (PCL) scaffold. A fused deposition modeling 3D bioprinter was used to fabricate scaffolds with a diameter of 4.5 mm, a height of 0.5 mm, and a pore size of 420-520 nm using PCL (molecular weight: 43 000). After amination of the scaffold surface for leptin and osteolectin adhesion, the experimental groups were divided into the PCL scaffold (control), the aminated PCL (PCL/Amine) scaffold, the leptin-coated PCL (PCL/Leptin) scaffold, and the osteolectin-coated PCL (PCL/Osteo) scaffold. Next, the water-soluble tetrazolium salt-1 (WST-1) assay was used to assess cell viability. All groups exhibited cell viability rates of >100%. Female 7-week-old Sprague-Dawley rats were used forin vivoexperiments. Calvarial defects were introduced on the rats' skulls using a 5.5 mm trephine bur. The rats were divided into the PCL (control), PCL/Leptin, and PCL/Osteo scaffold groups. The scaffolds were then inserted into the calvarial defect areas, and the rats were sacrificed after 8-weeks to analyze the defect area. Micro-CT analysis indicated that the leptin- and osteolectin-coated scaffolds exhibited significantly higher bone regeneration. Histological analysis revealed new bone and blood vessels in the calvarial defect area. These findings indicate that the 3D-printed PCL scaffold allows for patient-customized fabrication as well as the easy application of proteins like leptin and osteolectin. Moreover, leptin and osteolectin did not show cytotoxicity and exhibited higher bone regeneration potential than the existing scaffold.
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Affiliation(s)
- Young-Ran Kim
- Department of Biomedical Engineering, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Eun-Byeol Yun
- College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Dam-In Ryu
- College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Bo-Hye Kim
- Department of Veterinary Anatomy and Animal Behavior, College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - Joong-Seon Kim
- Department of Veterinary Anatomy and Animal Behavior, College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - Ye-Seul Kim
- Department of Prosthodontics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jin-Ho Kang
- Department of Prosthodontics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Eun-Hyo Cho
- Department of Conservative Dentistry, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jeong-Tae Koh
- Department of Pharmacology and Dental Therapeutics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Hyun-Pil Lim
- Department of Prosthodontics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Chan Park
- Department of Prosthodontics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Bin-Na Lee
- Department of Conservative Dentistry, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
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3
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Yuan S, Chen Q, Guo M, Xu Y, Wang W, Li Z. Fabrication of Bioresorbable Barrier Membranes from Gelatin/Poly(4-Hydroxybutyrate) (P4HB). Macromol Biosci 2024:e2400036. [PMID: 38621113 DOI: 10.1002/mabi.202400036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/01/2024] [Indexed: 04/17/2024]
Abstract
Dental implant surgery is a procedure that replaces damaged or missing teeth with an artificial implant. During this procedure, guided bone regeneration (GBR) membranes are commonly used to inhibit the migration of epithelium and GBR at the surgical sites. Due to its biodegradability, good biocompatibility, and unique biological properties, gelatin (GT) is considered a suitable candidate for guiding periodontal tissue regeneration. However, GT-based membranes come with limitations, such as poor mechanical strength and mismatched degradation rates. To confront this challenge, a series of GT/poly(4-hydroxybutyrate) (P4HB) composite membranes are fabricated through electrospinning technology. The morphology, composition, wetting properties, mechanical properties, biocompatibility, and in vivo biodegradability of the as-prepared composite membranes are carefully characterized. The results demonstrate that all the membranes present excellent biocompatibility. Moreover, the in vivo degradation rate of the membranes can be manipulated by changing the ratio of GT and P4HB. The results indicate that the optimized GT/P4HB membranes with a high P4HB content (75%) may be suitable for periodontal tissue engineering because of their good mechanical properties and biodegradation rate compatible with tissue growth.
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Affiliation(s)
- Shuaishuai Yuan
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Qi Chen
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Manman Guo
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Yongzhi Xu
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, 266003, China
| | - Wanchun Wang
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, 266003, China
| | - Zhibo Li
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
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Kouhi M, de Souza Araújo IJ, Asa'ad F, Zeenat L, Bojedla SSR, Pati F, Zolfagharian A, Watts DC, Bottino MC, Bodaghi M. Recent advances in additive manufacturing of patient-specific devices for dental and maxillofacial rehabilitation. Dent Mater 2024; 40:700-715. [PMID: 38401992 DOI: 10.1016/j.dental.2024.02.006] [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: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/26/2024]
Abstract
OBJECTIVES Customization and the production of patient-specific devices, tailoring the unique anatomy of each patient's jaw and facial structures, are the new frontiers in dentistry and maxillofacial surgery. As a technological advancement, additive manufacturing has been applied to produce customized objects based on 3D computerized models. Therefore, this paper presents advances in additive manufacturing strategies for patient-specific devices in diverse dental specialties. METHODS This paper overviews current 3D printing techniques to fabricate dental and maxillofacial devices. Then, the most recent literature (2018-2023) available in scientific databases reporting advances in 3D-printed patient-specific devices for dental and maxillofacial applications is critically discussed, focusing on the major outcomes, material-related details, and potential clinical advantages. RESULTS The recent application of 3D-printed customized devices in oral prosthodontics, implantology and maxillofacial surgery, periodontics, orthodontics, and endodontics are presented. Moreover, the potential application of 4D printing as an advanced manufacturing technology and the challenges and future perspectives for additive manufacturing in the dental and maxillofacial area are reported. SIGNIFICANCE Additive manufacturing techniques have been designed to benefit several areas of dentistry, and the technologies, materials, and devices continue to be optimized. Image-based and accurately printed patient-specific devices to replace, repair, and regenerate dental and maxillofacial structures hold significant potential to maximize the standard of care in dentistry.
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Affiliation(s)
- Monireh Kouhi
- Dental Materials Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Isaac J de Souza Araújo
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, MI, United States
| | - Farah Asa'ad
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Oral Biochemistry, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lubna Zeenat
- School of Engineering, Deakin University, Geelong 3216, Australia; Department of Biomedical Engineering, IIT Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Sri Sai Ramya Bojedla
- Department of Biomedical Engineering, IIT Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Falguni Pati
- Department of Biomedical Engineering, IIT Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Ali Zolfagharian
- School of Engineering, Deakin University, Geelong 3216, Australia
| | - David C Watts
- School of Medical Sciences, University of Manchester, Manchester, UK
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, MI, United States; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Mahdi Bodaghi
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK.
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Schröger SV, Blatt S, Sagheb K, Al-Nawas B, Kämmerer PW, Sagheb K. Platelet-rich fibrin for rehydration and pre-vascularization of an acellular, collagen membrane of porcine origin. Clin Oral Investig 2024; 28:99. [PMID: 38227215 PMCID: PMC10791820 DOI: 10.1007/s00784-023-05485-2] [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: 10/16/2023] [Accepted: 12/29/2023] [Indexed: 01/17/2024]
Abstract
OBJECTIVES Pre-vascularization of the collagen membranes with autologous platelet concentrates is a standard procedure in oral and maxillofacial surgery. This study analyzed the possible interaction of an acellular collagen membrane of porcine origin (NM) with platelet-rich fibrin (PRF) regarding its rehydration protocol with differences in pH values and effect on angiogenesis. MATERIALS AND METHODS NM was analyzed alone and combined with solid PRF by plotting or co-culturing with injectable PRF. Different media (venous blood, buffer solution with a fixed pH value of 7, saline solution, and injectable PRF) were used to analyze the influence on pH value during rehydration. Chorion allantois membrane assay (CAM) was applied to check pro-angiogenic effects after 24, 48, and 72 h, followed by immunohistochemical analysis. RESULTS Rehydration in injectable PRF showed acidity over time (p < 0.05). A definite pro-angiogenic effect of NM alone was found regarding neo-vessel formation supported by the respective light microscopically analysis without significant differences to PRF alone (p > 0.005). This pro-angiogenic effect could not be exaggerated when NM was combined with liquid/solid PRF (each p > 0.005). CONCLUSIONS Rehydration with liquid PRF of the collagen membrane results in acidity compared to a saline solution or patient's blood. The significant pro-angiogenic potential of the membrane alone resulted in enhanced neo-vessel formation that could not be optimized with the addition of PRF. CLINICAL RELEVANCE STATEMENT Using injectable PRF for rehydration protocol of the collagen membrane leads to acidosis that can ultimately optimize wound healing. Differences in the physio-mechanical interplay of collagen matrices and autologous platelet concentrates must result in clinical algorithms if pre-vascularization can maximize outcomes.
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Affiliation(s)
- Saskia-Vanessa Schröger
- Department of Oral and Maxillofacial Surgery-Plastic Operations, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany.
| | - Sebastian Blatt
- Department of Oral and Maxillofacial Surgery-Plastic Operations, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany
| | - Kawe Sagheb
- Department of Prosthodontics University Medical Center Mainz, Mainz, Germany
| | - Bilal Al-Nawas
- Department of Oral and Maxillofacial Surgery-Plastic Operations, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany
| | - Peer W Kämmerer
- Department of Oral and Maxillofacial Surgery-Plastic Operations, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany
| | - Keyvan Sagheb
- Department of Oral and Maxillofacial Surgery-Plastic Operations, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany
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Leblebicioglu B, Tatakis DN. Complications following alveolar ridge augmentation procedures. Periodontol 2000 2023; 93:221-235. [PMID: 37489632 DOI: 10.1111/prd.12509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 05/15/2023] [Accepted: 06/18/2023] [Indexed: 07/26/2023]
Abstract
Oral rehabilitation through implant supported dental restorations often requires a ridge augmentation procedure (RAP) prior to implant fixture placement since tooth extraction/loss results in alveolar ridge deficiencies. Although RAP-related surgical techniques and biomaterials have been in practice for several decades, outcomes are not always predictable. Post-surgical complications experienced during the early or late wound healing phases may jeopardize the targeted ideal ridge dimensions, required for implant fixture placement, and may have other consequences, such as negatively impacting the patient's quality of life. This review describes reported post-surgical complications following RAP under the following subtitles: complications by tissue type, complications in function and aesthetics, complications by healing time, complications by biomaterial type, and complications by surgical protocol modalities. Specifically, RAP performed by using particulate bone graft substitutes and related complications are explored. Modalities developed to prevent/manage these complications are also discussed.
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Affiliation(s)
- Binnaz Leblebicioglu
- Division of Periodontology, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Dimitris N Tatakis
- Division of Periodontology, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
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Eldabe AK, Abdel-Ghaffar KA, Amr AE, Abu-Seida AM, Abdelhamid ES, Gamal AY. The impact of membrane perforation and L-PRF for vertical ridge augmentation with a xenogeneic block graft: an experimental study in a canine model. Clin Oral Investig 2023; 27:3949-3960. [PMID: 37083985 PMCID: PMC10329594 DOI: 10.1007/s00784-023-05018-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: 01/14/2023] [Accepted: 04/02/2023] [Indexed: 04/22/2023]
Abstract
OBJECTIVES This study evaluated clinically and histologically the efficacy of modified perforated collagen membrane (PCM) and/or leukocyte- and platelet-rich fibrin (L-PRF) in combination with xenogeneic block bone graft in the vertical alveolar ridge augmentation. MATERIALS AND METHODS Six adult mongrel dogs were enrolled in this randomized blinded study. After defect preparation, xenogeneic screw-fixed block graft was covered by an occlusive collagen membrane in group 1 that represented the control group (Block + CM). In group 2, L-PRF membrane was added first before top coverage by occlusive collagen membrane (Block + L-PRF + CM). Groups 3 (Block + PCM) and 4 (Block + L-PRF + PCM) were identical to the first two groups except that the occlusive collagen membrane was replaced by a perforated one. Following a healing period of 2 months, the dogs were submitted to the surgical reentry phase for clinical and histological evaluation. RESULTS Clinically, no significant differences were found among all groups regarding vertical and horizontal ridge dimensions (p = 0.155, 0.492, respectively). Histomorphometric analysis revealed that the percentage of the total bone area and mature bone was significantly higher in group 4 (69.36 ± 2.72, 33.11 ± 5.18) compared to the control group (59.17 ± 4.27, 21.94 ± 2.86) (p = 0. 027, p = 0.029). CONCLUSION The use of xenogenic block grafts in combination with a double-layered perforated collagen L-PRF membrane in vertical ridge augmentation appeared to improve the inductive power of this challenging defect type. CLINICAL RELEVANCE Size and number of perforations may affect the mechanical and handling properties of the membrane.
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Affiliation(s)
- Abdelrahman K Eldabe
- Dept. of Oral Medicine and Periodontology, Faculty of Dentistry, Assiut University, Assiut, Egypt
| | - Khaled A Abdel-Ghaffar
- Dept. of Oral Medicine and Periodontology, Faculty of Dentistry, Ain Shams University, Cairo, Egypt
| | - Ahmed E Amr
- Dept. of Oral Medicine and Periodontology, Faculty of Dentistry, Ain Shams University, Cairo, Egypt
| | - Ashraf M Abu-Seida
- Dept. of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, PO: 12211, Egypt
| | - Ehab S Abdelhamid
- Dept. of Oral Pathology, Faculty of Dentistry, Ain Shams University, Cairo, Egypt
| | - Ahmed Y Gamal
- Ain Shams University, Faculty of Dentistry, Cairo, Egypt.
- Misr University for Science and Technology, Faculty of Dentistry, October 5 City, Egypt.
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Toledo PTA, Anselmi C, Dal-Fabbro R, Mahmoud AH, Abel AK, Becker ML, Delbem ACB, Bottino MC. Calcium Trimetaphosphate-Loaded Electrospun Poly(Ester Urea) Nanofibers for Periodontal Tissue Engineering. J Funct Biomater 2023; 14:350. [PMID: 37504845 PMCID: PMC10381820 DOI: 10.3390/jfb14070350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/22/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
The objective of this research was to create and appraise biodegradable polymer-based nanofibers containing distinct concentrations of calcium trimetaphosphate (Ca-TMP) for periodontal tissue engineering. Poly(ester urea) (PEU) (5% w/v) solutions containing Ca-TMP (15%, 30%, 45% w/w) were electrospun into fibrous scaffolds. The fibers were evaluated using SEM, EDS, TGA, FTIR, XRD, and mechanical tests. Degradation rate, swelling ratio, and calcium release were also evaluated. Cell/Ca-TMP and cell/scaffold interaction were assessed using stem cells from human exfoliated deciduous teeth (SHEDs) for cell viability, adhesion, and alkaline phosphatase (ALP) activity. Analysis of variance (ANOVA) and post-hoc tests were used (α = 0.05). The PEU and PEU/Ca-TMP-based membranes presented fiber diameters at 469 nm and 414-672 nm, respectively. Chemical characterization attested to the Ca-TMP incorporation into the fibers. Adding Ca-TMP led to higher degradation stability and lower dimensional variation than the pure PEU fibers; however, similar mechanical characteristics were observed. Minimal calcium was released after 21 days of incubation in a lipase-enriched solution. Ca-TMP extracts enhanced cell viability and ALP activity, although no differences were found between the scaffold groups. Overall, Ca-TMP was effectively incorporated into the PEU fibers without compromising the morphological properties but did not promote significant cell function.
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Affiliation(s)
- Priscila T. A. Toledo
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (P.T.A.T.); (C.A.); (R.D.-F.); (A.H.M.)
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil;
| | - Caroline Anselmi
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (P.T.A.T.); (C.A.); (R.D.-F.); (A.H.M.)
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil
| | - Renan Dal-Fabbro
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (P.T.A.T.); (C.A.); (R.D.-F.); (A.H.M.)
| | - Abdel H. Mahmoud
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (P.T.A.T.); (C.A.); (R.D.-F.); (A.H.M.)
| | - Alexandra K. Abel
- Departments of Chemistry, Mechanical Engineering and Material Science, Orthopaedic Surgery, Duke University, Durham, NC 27708, USA; (A.K.A.); (M.L.B.)
| | - Matthew L. Becker
- Departments of Chemistry, Mechanical Engineering and Material Science, Orthopaedic Surgery, Duke University, Durham, NC 27708, USA; (A.K.A.); (M.L.B.)
| | - Alberto C. B. Delbem
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil;
| | - Marco C. Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (P.T.A.T.); (C.A.); (R.D.-F.); (A.H.M.)
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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Abdo VL, Suarez LJ, de Paula LG, Costa RC, Shibli J, Feres M, Barāo VAR, Bertolini M, Souza JGS. Underestimated microbial infection of resorbable membranes on guided regeneration. Colloids Surf B Biointerfaces 2023; 226:113318. [PMID: 37075523 DOI: 10.1016/j.colsurfb.2023.113318] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/29/2023] [Accepted: 04/12/2023] [Indexed: 04/21/2023]
Abstract
Barrier membranes are critical in creating tissuecompartmentalization for guided tissue (GTR) and bone regeneration (GBR) therapies. More recently, resorbable membranes have been widely used for tissue and bone regeneration due to their improved properties and the dispensable re-entry surgery for membrane removal. However, in cases with membrane exposure, this may lead to microbial contamination that will compromise the integrity of the membrane, surrounding tissue, and bone regeneration, resulting in treatment failure. Although the microbial infection can negatively influence the clinical outcomes of regenerative therapy, such as GBR and GTR, there is a lack of clinical investigations in this field, especially concerning the microbial colonization of different types of membranes. Importantly, a deeper understanding of the mechanisms of biofilm growth and composition and pathogenesis on exposed membranes is still missing, explaining the mechanisms by which bone regeneration is reduced during membrane exposure. This scoping review comprehensively screened and discussed the current in vivo evidence and possible new perspectives on the microbial contamination of resorbable membranes. Results from eligible in vivo studies suggested that different bacterial species colonized exposed membranes according to their composition (collagen, expanded polytetrafluoroethylene (non-resorbable), and polylactic acid), but in all cases, it negatively affected the attachment level and amount of bone gain. However, limited models and techniques have evaluated the newly developed materials, and evidence is scarce. Finally, new approaches to enhance the antimicrobial effect should consider changing the membrane surface or incorporating long-term released antimicrobials in an effort to achieve better clinical success.
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Affiliation(s)
- Victoria L Abdo
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil
| | - Lina J Suarez
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil; Departamento de Ciencias Básicas y Medicina Oral, Universidad Nacional de Colombia, Cra 45 # 26-85, Bogotá 11001, Colombia
| | - Lucca Gomes de Paula
- Dental Science School (Faculdade de Ciências Odontológicas - FCO), Av. Waldomiro Marcondes Oliveira, 20 - Ibituruna, Montes Claros, Minas Gerais 39401-303, Brazil
| | - Raphael C Costa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Jamil Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil; Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Valentim A R Barāo
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Martinna Bertolini
- Department of Periodontics and Preventive Dentistry, University of Pittsburgh School of Dental Medicine, 3501 Terrace St, Pittsburgh, PA 15213, USA
| | - Joāo Gabriel Silva Souza
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil; Dental Science School (Faculdade de Ciências Odontológicas - FCO), Av. Waldomiro Marcondes Oliveira, 20 - Ibituruna, Montes Claros, Minas Gerais 39401-303, Brazil.
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An HW, Lee J, Park JW. Surface characteristics and in vitro biocompatibility of surface-modified titanium foils as a regenerative barrier membrane for guided bone regeneration. J Biomater Appl 2023; 37:1228-1242. [PMID: 36205350 DOI: 10.1177/08853282221132351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study evaluated surface characteristics and biocompatibility of surface-modified thin titanium (Ti) foils as a regenerative barrier membrane for future application in guided bone regeneration (GBR) surgery to augment atrophic alveolar bone. Anodic oxidation and post-heat treatment were performed to prepare various Ti foil samples. Then, the in vitro soft and hard tissue compatibility of the samples was evaluated by examining the cell responses using primary human gingival fibroblasts (HGFs) and MG63 human osteoblast-like cells. Investigated Ti foil samples showed marked differences in physicochemical surface properties. Additional 400°C heat treatment applied to the anodized Ti surface led to formation of an anatase titanium dioxide structure and well-organized nanoscale protrusions, and significantly increased surface wettability. Anodization and heat treatment enhanced the growth of HGFs and MG63 cells in Ti foil samples. Additional heat treatment for 10 and 30 min further significantly improved the response of HGFs including spreading and proliferation, and upregulated the mRNA expression of cell adhesion- and maturation-related genes as well as the osteoblast differentiation of MG63 cells. Ti foil sample with thin oxide coating obtained by a 30 min heat treatment exhibited poor clinical plasticity as a regenerative barrier membrane, which showed complete coating failure in the bending test. Our results indicate that anatase Ti oxide coating of a specific film thickness with nanoscale surface protrusion morphology and hydrophilic characteristics obtained by anodization and post-heat treatment would be an effective approach as a biocompatible Ti regenerative membrane for inducing better regeneration of both gingival tissue and bone.
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Affiliation(s)
- Hyun-Wook An
- Graduate School, 34986Kyungpook National University, Daegu, Korea.,Megagen Implant R&D Center, Daegu, Korea
| | - Jaesik Lee
- Megagen Implant R&D Center, Daegu, Korea
| | - Jin-Woo Park
- Department of Pediatric Dentistry, 65498Kyungpook National University School of Dentistry, Daegu, Korea
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Ren Y, Fan L, Alkildani S, Liu L, Emmert S, Najman S, Rimashevskiy D, Schnettler R, Jung O, Xiong X, Barbeck M. Barrier Membranes for Guided Bone Regeneration (GBR): A Focus on Recent Advances in Collagen Membranes. Int J Mol Sci 2022; 23:ijms232314987. [PMID: 36499315 PMCID: PMC9735671 DOI: 10.3390/ijms232314987] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
Guided bone regeneration (GBR) has become a clinically standard modality for the treatment of localized jawbone defects. Barrier membranes play an important role in this process by preventing soft tissue invasion outgoing from the mucosa and creating an underlying space to support bone growth. Different membrane types provide different biological mechanisms due to their different origins, preparation methods and structures. Among them, collagen membranes have attracted great interest due to their excellent biological properties and desired bone regeneration results to non-absorbable membranes even without a second surgery for removal. This work provides a comparative summary of common barrier membranes used in GBR, focusing on recent advances in collagen membranes and their biological mechanisms. In conclusion, the review article highlights the biological and regenerative properties of currently available barrier membranes with a particular focus on bioresorbable collagen-based materials. In addition, the advantages and disadvantages of these biomaterials are highlighted, and possible improvements for future material developments are summarized.
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Affiliation(s)
- Yanru Ren
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
- BerlinAnalytix GmbH, 12109 Berlin, Germany
| | - Lu Fan
- NMI Natural and Medical Sciences Institute, University of Tübingen, 72770 Reutlingen, Germany
| | | | - Luo Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100013, China
| | - Steffen Emmert
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
| | - Stevo Najman
- Scientific Research Center for Biomedicine, Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
- Department of Biology and Human Genetics, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
| | - Denis Rimashevskiy
- Department of Traumatology and Orthopedics, Peoples’ Friendship University of Russia, 117198 Moscow, Russia
| | - Reinhard Schnettler
- University Medical Centre, Justus Liebig University of Giessen, 35390 Giessen, Germany
| | - Ole Jung
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
| | - Xin Xiong
- NMI Natural and Medical Sciences Institute, University of Tübingen, 72770 Reutlingen, Germany
| | - Mike Barbeck
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
- BerlinAnalytix GmbH, 12109 Berlin, Germany
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100013, China
- Correspondence: ; Tel.: +49-(0)-176-81022467
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12
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Abstract
As a widespread chronical disease, periodontitis progressively destroys tooth-supporting structures (periodontium) and eventually leads to tooth loss. Therefore, regeneration of damaged/lost periodontal tissues has been a major subject in periodontal research. During periodontal tissue regeneration, biomaterials play pivotal roles in improving the outcome of the periodontal therapy. With the advancement of biomaterial science and engineering in recent years, new biomimetic materials and scaffolding fabrication technologies have been proposed for periodontal tissue regeneration. This article summarizes recent progress in periodontal tissue regeneration from a biomaterial perspective. First, various guide tissue regeneration/guide bone regeneration membranes and grafting biomaterials for periodontal tissue regeneration are overviewed. Next, the recent development of multifunctional scaffolding biomaterials for alveolar bone/periodontal ligament/cementum regeneration is summarized. Finally, clinical care points and perspectives on the use of biomimetic scaffolding materials to reconstruct the hierarchical periodontal tissues are provided.
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Affiliation(s)
- Yuejia Deng
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
| | - Yongxi Liang
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
| | - Xiaohua Liu
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA.
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Cordeiro JM, Barão VAR, de Avila ED, Husch JFA, Yang F, van den Beucken JJJP. Tailoring Cu 2+-loaded electrospun membranes with antibacterial ability for guided bone regeneration. BIOMATERIALS ADVANCES 2022; 139:212976. [PMID: 35882133 DOI: 10.1016/j.bioadv.2022.212976] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/23/2022] [Accepted: 06/04/2022] [Indexed: 06/15/2023]
Abstract
Copper (Cu)-loaded electrospun membranes were tailored for guided bone regeneration (GBR), targeting the stimulation of innate cells active in bone growth and the prevention of bacterial infections. Functional GBR membranes were produced via an electrospinning set-up using a silk-based solution associated with polyethylene oxide (Silk/PEO - control). Experimental groups were loaded with copper oxide using varying weight percentages (0.05 % to 1 % of CuO). The morphological, structural, chemical, and mechanical properties of membranes were evaluated. Direct and indirect in vitro cytocompatibility experiments were performed with primary human bone mesenchymal stem cells and primary human umbilical vein endothelial cells. The antibacterial potential of membranes was tested with Staphylococcus aureus and Fusobacterium nucleatum biofilm. CuO was successfully incorporated into membranes as clusters without compromising their mechanical properties for clinical applicability. Increased Cu concentrations generated membranes with thinner nanofibers, greater pore areas, and stronger antimicrobial effect (p < 0.01). Cu2+ ion was released from the nanofiber membranes during 1 week, showing higher release in acidic conditions. CuO 0.1 % and CuO 0.05 % membranes were able to support and stimulate cell adhesion and proliferation (p < 0.05), and favor angiogenic responses of vascular cells. In addition, detailed quantitative and qualitative analysis determined that amount of the attached biofilm was reduced on the tailored functional Cu2+-loaded GBR membrane. Importantly, these qualities represent a valuable strategy to improve the bone regeneration process and diminish the risk of bacterial infections.
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Affiliation(s)
- Jairo M Cordeiro
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil; Dentistry - Regenerative Biomaterials, Radboudumc, Nijmegen, the Netherlands.
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil.
| | - Erica D de Avila
- Department of Dental Materials and Prosthodontics, School of Dentistry at Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Johanna F A Husch
- Dentistry - Regenerative Biomaterials, Radboudumc, Nijmegen, the Netherlands
| | - Fang Yang
- Dentistry - Regenerative Biomaterials, Radboudumc, Nijmegen, the Netherlands
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14
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Sartoretto SC, Gens NDF, de Brito Resende RF, Alves ATNN, Cecato RC, Uzeda MJ, Granjeiro JM, Calasans-Maia MD, Calasans-Maia JA. In Vivo Evaluation of Permeable and Impermeable Membranes for Guided Bone Regeneration. MEMBRANES 2022; 12:membranes12070711. [PMID: 35877914 PMCID: PMC9324035 DOI: 10.3390/membranes12070711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/09/2022] [Accepted: 07/11/2022] [Indexed: 02/05/2023]
Abstract
Background: The degree of biodegradation and the inflammatory response of membranes employed for guided bone regeneration directly impact the outcome of this technique. This study aimed to evaluate four different experimental versions of Poly (L-lactate-co-Trimethylene Carbonate) (PTMC) + Poly (L-lactate-co-glycolate) (PLGA) membranes, implanted in mouse subcutaneous tissue, compared to a commercially available membrane and a Sham group. Methods: Sixty Balb-C mice were randomly divided into six experimental groups and subdivided into 1, 3, 6 and 12 weeks (n = 5 groups/period). The membranes (1 cm2) were implanted in the subcutaneous back tissue of the animals. The samples were obtained for descriptive and semiquantitative histological evaluation (ISO 10993-6). Results: G1 and G4 allowed tissue adhesion and the permeation of inflammatory cells over time and showed greater phagocytic activity and permeability. G2 and G3 detached from the tissue in one and three weeks; however, in the more extended periods, they presented a rectilinear and homogeneous aspect and were not absorbed. G2 had a major inflammatory reaction. G5 was almost completely absorbed after 12 weeks. Conclusions: The membranes are considered biocompatible. G5 showed a higher degree of biosorption, followed by G1 and G4. G2 and G3 are considered non-absorbable in the studied periods.
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Affiliation(s)
- Suelen Cristina Sartoretto
- Oral Surgery Department, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (S.C.S.); (R.F.d.B.R.); (M.J.U.)
- Laboratory for Clinical Research in Dentistry, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (A.T.N.N.A.); (J.M.G.); (M.D.C.-M.)
| | - Natalia de Freitas Gens
- Graduate Program, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil;
| | - Rodrigo Figueiredo de Brito Resende
- Oral Surgery Department, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (S.C.S.); (R.F.d.B.R.); (M.J.U.)
- Laboratory for Clinical Research in Dentistry, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (A.T.N.N.A.); (J.M.G.); (M.D.C.-M.)
- Oral Surgery Department, Dentistry School, Iguaçu University, Nova Iguaçu 26275-580, Rio de Janeiro, Brazil
| | - Adriana Terezinha Neves Novellino Alves
- Laboratory for Clinical Research in Dentistry, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (A.T.N.N.A.); (J.M.G.); (M.D.C.-M.)
- Oral Diagnosis Department, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil
| | - Rafael Cury Cecato
- Implant Dentistry Center for Education and Research on Dental Implants (CEPID), Department of Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis 88000-000, Santa Catarina, Brazil;
| | - Marcelo José Uzeda
- Oral Surgery Department, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (S.C.S.); (R.F.d.B.R.); (M.J.U.)
- Laboratory for Clinical Research in Dentistry, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (A.T.N.N.A.); (J.M.G.); (M.D.C.-M.)
- Oral Surgery Department, Dentistry School, Iguaçu University, Nova Iguaçu 26275-580, Rio de Janeiro, Brazil
| | - Jose Mauro Granjeiro
- Laboratory for Clinical Research in Dentistry, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (A.T.N.N.A.); (J.M.G.); (M.D.C.-M.)
- National Institute of Metrology, Quality and Technology (INMETRO), Duque de Caxias 25000-000, Rio de Janeiro, Brazil
| | - Monica Diuana Calasans-Maia
- Laboratory for Clinical Research in Dentistry, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (A.T.N.N.A.); (J.M.G.); (M.D.C.-M.)
| | - Jose Albuquerque Calasans-Maia
- Laboratory for Clinical Research in Dentistry, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil; (A.T.N.N.A.); (J.M.G.); (M.D.C.-M.)
- Orthodontic Department, Dentistry School, Fluminense Federal University, Niteroi 24020-140, Rio de Janeiro, Brazil
- Correspondence: ; Tel.: +55-21-981535874
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Ma L, Zhang L, Liu Z, Wang D, Li Y, Zhang C. Application of e-PTFE Frontalis Suspension in the Treatment of Congenital Ptosis in Children. Front Surg 2022; 9:904307. [PMID: 35651689 PMCID: PMC9149305 DOI: 10.3389/fsurg.2022.904307] [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: 03/25/2022] [Accepted: 04/14/2022] [Indexed: 11/13/2022] Open
Abstract
PurposeAnalysis of the value of expanded polytetrafluoroethylene (e-PTFE) frontalis suspension applied to children with congenital ptosis.MethodsEighty clinical cases of children with congenital ptosis from October 2019 to October 2021 were randomly selected from our hospital. All children were divided into the observation group (n = 44) treated with e-PTFE frontalis suspension and the control group (n = 36) treated with frontalis flap suspension according to the treatment procedure. Comparison of eyelid condition [palpebral fissure height, margin reflex distance (MRD), eyelid closure time], ocular surface status [corneal fluorescein staining (CFS) score, tear film breakup time (TBUT), surgical eye lacrimal river height (LRH), sehirmer test I (STI)], frontal muscle strength of affected side, cosmetic results and complications in both groups at 1, 6 and 12 months postoperative follow-up.ResultsAt 1, 6 and 12 months after surgery, there was no significant difference in terms of palpebral fissure height and MRD between both groups (p > 0.05); After surgery, the eyelid closure time was shorter in the observation group than in the control group (p < 0.05). At 1, 6 and 12 months after surgery, the CFS scores were lower in the observation group than in the control group (p < 0.05); At 6 and 12 months after surgery, the TBUT was longer and the surgical eye LRH was higher in the observation group than in the control group (p < 0.05); At 1, 6, and 12 months after surgery, there was no significant difference in STI between both groups (p < 0.05). At 1, 6 and 12 months after surgery, the frontal muscle strength of affected side was higher in the observation group than in the control group (p < 0.05). At 1, 6, and 12 months after surgery, there was no significant difference in cosmetic results between both groups (p > 0.05). The overall complication rate in the observation group (6.82%) was lower than that in the control group (25.00%) (p < 0.05).ConclusionThe surgical and cosmetic results of e-PTFE frontalis suspension and frontalis flap suspension applied to congenital ptosis are comparable, but the former has the advantage of faster postoperative recovery, better ocular surface status, less frontali muscle strength damage and fewer complications.
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Affiliation(s)
- Ling Ma
- Department of Ophthalmology, Pediatric Hospital Affiliated to Fudan University, Anhui Hospital, Anhui Children’s Hospital, Hefei, China
| | - Lei Zhang
- Department of Ophthalmology, Fuyang People’s Hospital, Fuyang, China
| | - Zhen Liu
- Department of Ophthalmology, Pediatric Hospital Affiliated to Fudan University, Anhui Hospital, Anhui Children’s Hospital, Hefei, China
| | - Dandan Wang
- Department of Ophthalmology, Pediatric Hospital Affiliated to Fudan University, Anhui Hospital, Anhui Children’s Hospital, Hefei, China
| | - Yibao Li
- Department of Ophthalmology, Pediatric Hospital Affiliated to Fudan University, Anhui Hospital, Anhui Children’s Hospital, Hefei, China
| | - Chengyue Zhang
- Department of Ophthalmology, Beijing Children’s Hospital, Beijing, China
- Correspondence: Zhang Chengyue
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Feasibility and Efficacy of a Degradable Magnesium-Alloy GBR Membrane for Bone Augmentation in a Distal Bone-Defect Model in Beagle Dogs. Bioinorg Chem Appl 2022; 2022:4941635. [PMID: 35371192 PMCID: PMC8967573 DOI: 10.1155/2022/4941635] [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: 01/27/2022] [Accepted: 03/05/2022] [Indexed: 01/29/2023] Open
Abstract
We explored the feasibility and efficacy of a degradable magnesium (Mg) alloy guided bone regeneration (GBR) in the treatment of bone defects after tooth extraction. A GBR membrane (MAR-Gide (MG)) was used to treat a mandibular second molar (M2M)-distal bone defect (DBD). In eight beagle dogs, bilateral mandibular second and fourth premolars were hemi-sected. The distal roots were removed to create a two-wall bony defect of dimension 5 mm × 5 mm × 5 mm to simulate M2M-DBD. Thirty-two bone defects were assigned randomly into four groups according to GBR membranes (MG and Bio-Gide (BG)) applied and the time of killing (3 months and 6 months after surgery). The osteogenesis of bone defects and MG degradation were analyzed using micro-CT, histology (staining, tartrate-resistant acid phosphatase), and inductively coupled plasma mass spectrometry. MG did not increase the prevalence of infection, wound dehiscence, or subcutaneous emphysema compared with those using BG. Trabecular volume/total volume at 3 months (63.71 ± 10.4% vs. 59.97 ± 8.94%) was significantly higher in the group MG than that in the group BG. Implanted MG was degraded completely within 3 months, and "island-shaped" new bone was found near MG degradation products. A significant difference was not found in vertical bone height or percent of new bone formation (45.44 ± 12.28% vs. 43.49 ± 7.12%) between the groups. The concentration of rare-earth elements in mandibular lymph nodes of the group MG was significantly higher than that of the group BG (P ≤ 0.017) but did not lead to histopathological changes. In summary, MG exhibited good biocompatibility and clinical applicability compared with BG in vivo. The osteogenic effect of MG could be enhanced by regulating the degradation rate of Mg-alloy.
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Bacakova L, Novotna K, Hadraba D, Musilkova J, Slepicka P, Beran M. Influence of Biomimetically Mineralized Collagen Scaffolds on Bone Cell Proliferation and Immune Activation. Polymers (Basel) 2022; 14:polym14030602. [PMID: 35160591 PMCID: PMC8838484 DOI: 10.3390/polym14030602] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/30/2022] [Accepted: 02/01/2022] [Indexed: 12/21/2022] Open
Abstract
Collagen, as the main component of connective tissue, is frequently used in various tissue engineering applications. In this study, porous sponge-like collagen scaffolds were prepared by freeze-drying and were then mineralized in a simulated body fluid. The mechanical stability was similar in both types of scaffolds, but the mineralized scaffolds (MCS) contained significantly more calcium, magnesium and phosphorus than the unmineralized scaffolds (UCS). Although the MCS contained a lower percentage (~32.5%) of pores suitable for cell ingrowth (113–357 μm in diameter) than the UCS (~70%), the number of human-osteoblast-like MG-63 cells on days 1, 3 and 7 after seeding was higher on MCS than on UCS, and the cells penetrated deeper into the MCS. The cell growth in extracts prepared by eluting the scaffolds for 7 days in a cell culture medium was also markedly higher in the MCS extracts, as indicated by real-time monitoring in the sensory xCELLigence system for 7 days. From this point of view, MCS are more promising for bone tissue engineering than UCS. However, MCS evoked a more pronounced inflammatory response than UCS, as indicated by the production of tumor necrosis factor-alpha (TNF-α) in macrophage-like RAW 264.7 cells in cultures on these scaffolds.
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Affiliation(s)
- Lucie Bacakova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.N.); (D.H.); (J.M.)
- Correspondence: ; Tel.: +420-2-9644-3743
| | - Katarina Novotna
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.N.); (D.H.); (J.M.)
| | - Daniel Hadraba
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.N.); (D.H.); (J.M.)
| | - Jana Musilkova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.N.); (D.H.); (J.M.)
| | - Petr Slepicka
- Department of Solid State Engineering, Faculty of Chemical Technology, University of Chemistry and Technology, Technicka 5, 166 28 Prague 6, Czech Republic;
| | - Milos Beran
- Food Research Institute Prague, Radiova 7, 102 31 Prague 10, Czech Republic;
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The Role of Blood Clot in Guided Bone Regeneration: Biological Considerations and Clinical Applications with Titanium Foil. MATERIALS 2021; 14:ma14216642. [PMID: 34772167 PMCID: PMC8587813 DOI: 10.3390/ma14216642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/22/2021] [Accepted: 10/29/2021] [Indexed: 11/17/2022]
Abstract
In Guided Bone Regeneration (GBR) materials and techniques are essential to achieve the expected results. Thanks to their properties, blood clots induce bone healing, maturation, differentiation and organization. The preferred material to protect the clot in Guided Bone Regeneration is the titanium foil, as it can be shaped according to the bone defect. Furthermore, its exposition in the oral cavity does not impair the procedure. We report on five clinical cases in order to explain the management of blood clots in combination with titanium foil barriers in different clinical settings. Besides being the best choice to protect the clot, the titanium foil represents an excellent barrier that is useful in GBR due to its biocompatibility, handling, and mechanical strength properties. The clot alone is the best natural scaffold to obtain the ideal bone quality and avoid the persistence of not-resorbed granules of filler materials in the newly regenerated bone. Even though clot contraction still needs to be improved, as it impacts the volume of the regenerated bone, future studies in GBR should be inspired by the clot and its fundamental properties.
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Clinical, Radiographic, and Histomorphometric Evaluation of a Vertical Ridge Augmentation Procedure Using a Titanium-Reinforced Microporous Expanded Polytetrafluoroethylene Membrane: A Prospective Case Series with 1-Year Follow-Up. MATERIALS 2021; 14:ma14143828. [PMID: 34300744 PMCID: PMC8307707 DOI: 10.3390/ma14143828] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/29/2021] [Accepted: 07/02/2021] [Indexed: 12/26/2022]
Abstract
Vertical ridge augmentation for long-term implant stability is difficult in severely resorbed areas. We examined the clinical, radiological, and histological outcomes of guided-bone regeneration using novel titanium-reinforced microporous expanded polytetrafluoroethylene (MP-ePTFE) membranes. Eighteen patients who underwent implant placement using a staged approach were enrolled (period: 2018–2019). Vertical ridge augmentation was performed in areas with vertical bone defects ≥4 mm. Twenty-six implant fixtures were placed in 14 patients. At implant placement six fixtures had relatively low stability. On cone-beam computed tomography, the average vertical changes were 4.2 ± 1.9 (buccal), 5.9 ± 2.7 (central), and 4.4 ± 2.8 mm (lingual) at six months after vertical ridge augmentation. Histomorphometric analyses revealed that the average proportions of new bone, residual bone substitute material, and soft tissue were 34.91 ± 11.61%, 7.16 ± 2.74%, and 57.93 ± 11.09%, respectively. Stable marginal bone levels were observed at 1-year post-loading. The residual bone graft material area was significantly lower in the exposed group (p = 0.003). There was no significant difference in the vertical height change in the buccal side between immediately after the augmentation procedure and the implant placement reentry time (p = 0.371). However, all implants functioned well regardless of the exposure during the observation period. Thus, vertical ridge augmentation around implants using titanium-reinforced MP-ePTFE membranes can be successful.
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Li P, Li Y, Kwok T, Yang T, Liu C, Li W, Zhang X. A bi-layered membrane with micro-nano bioactive glass for guided bone regeneration. Colloids Surf B Biointerfaces 2021; 205:111886. [PMID: 34091371 DOI: 10.1016/j.colsurfb.2021.111886] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/27/2021] [Accepted: 05/27/2021] [Indexed: 12/21/2022]
Abstract
Guided bone regeneration (GBR) is widely used to treat oral bone defects. However, the osteogenic effects are limited by the deficiency of the available barrier membranes. In this study, a novel bi-layer membrane was prepared by solvent casting and electrospinning. The barrier layer made of poly (lactic-co-glycolic acid) (PLGA) was smooth and compact, whereas the osteogenic layer consisting of micro-nano bioactive glass (MNBG) and PLGA was rough and porous. The mineralization evaluation confirmed that apatite formed on the membranes in simulated body fluid. Immersion in phosphate-buffered saline led to the degradation of the membranes with proper pH changes. Mechanical tests showed that the bi-layered membranes have stable mechanical properties under dry and wet conditions. The bi-layered membranes have good histocompatibility, and the MNBG/PLGA layer can enhance bone regeneration activity. This was confirmed by cell culture results, expression of osteogenic genes, and immunofluorescence staining of RUNX-related transcription factor 2 and osteopontin. Therefore, the bi-layered membranes could be a promising clinical strategy for GBR surgery.
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Affiliation(s)
- Peiyi Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510000, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510000, PR China
| | - Yanfei Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510000, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510000, PR China
| | - Tszyung Kwok
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510000, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510000, PR China
| | - Tao Yang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510000, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510000, PR China
| | - Cong Liu
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, 510006, PR China
| | - Weichang Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510000, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510000, PR China.
| | - Xinchun Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510000, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510000, PR China.
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21
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Applications of Human Amniotic Membrane for Tissue Engineering. MEMBRANES 2021; 11:membranes11060387. [PMID: 34070582 PMCID: PMC8227127 DOI: 10.3390/membranes11060387] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 12/17/2022]
Abstract
An important component of tissue engineering (TE) is the supporting matrix upon which cells and tissues grow, also known as the scaffold. Scaffolds must easily integrate with host tissue and provide an excellent environment for cell growth and differentiation. Human amniotic membrane (hAM) is considered as a surgical waste without ethical issue, so it is a highly abundant, cost-effective, and readily available biomaterial. It has biocompatibility, low immunogenicity, adequate mechanical properties (permeability, stability, elasticity, flexibility, resorbability), and good cell adhesion. It exerts anti-inflammatory, antifibrotic, and antimutagenic properties and pain-relieving effects. It is also a source of growth factors, cytokines, and hAM cells with stem cell properties. This important source for scaffolding material has been widely studied and used in various areas of tissue repair: corneal repair, chronic wound treatment, genital reconstruction, tendon repair, microvascular reconstruction, nerve repair, and intraoral reconstruction. Depending on the targeted application, hAM has been used as a simple scaffold or seeded with various types of cells that are able to grow and differentiate. Thus, this natural biomaterial offers a wide range of applications in TE applications. Here, we review hAM properties as a biocompatible and degradable scaffold. Its use strategies (i.e., alone or combined with cells, cell seeding) and its degradation rate are also presented.
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22
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Bapat RA, Parolia A, Chaubal T, Dharamadhikari S, Abdulla AM, Sakkir N, Arora S, Bapat P, Sindi AM, Kesharwani P. Recent update on potential cytotoxicity, biocompatibility and preventive measures of biomaterials used in dentistry. Biomater Sci 2021; 9:3244-3283. [PMID: 33949464 DOI: 10.1039/d1bm00233c] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Dental treatment is provided for a wide variety of oral health problems like dental caries, periodontal diseases, periapical infections, replacement of missing teeth and orthodontic problems. Various biomaterials, like composite resins, amalgam, glass ionomer cement, acrylic resins, metal alloys, impression materials, bone grafts, membranes, local anaesthetics, etc., are used for dental applications. The physical and chemical characteristics of these materials influence the outcome of dental treatment. It also impacts on the biological, allergic and toxic potential of biomaterials. With innovations in science and their positive results, there is also a need for awareness about the biological risks of these biomaterials. The aim of dental treatment is to have effective, yet safe, and long-lasting results for the benefit of patients. For this, it is important to have a thorough understanding of biomaterials and their effects on local and systemic health. Materials used in dentistry undergo a series of analyses before their oral applications. To the best of our knowledge, this is the first and original review that discusses the reasons for and studies on the toxicity of commonly used biomaterials for applications in dentistry. It will help clinicians to formulate a methodical approach for the selection of dental biomaterials, thus providing an awareness for forecasting their risk of toxic reactions.
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Affiliation(s)
- Ranjeet Ajit Bapat
- Faculty, Division of Clinical Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Abhishek Parolia
- Faculty, Division of Clinical Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Tanay Chaubal
- Faculty, Division of Clinical Dentistry, School of Dentistry, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Bukit Jalil, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | | | - Anshad Mohamed Abdulla
- Faculty, Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Nasil Sakkir
- Registrar Endodontist, Central Security Hospital, Abha, Kingdom of Saudi Arabia
| | - Suraj Arora
- Faculty, Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Prachi Bapat
- Dentist, Modern Dental College, Indore 453112, Madhya Pradesh, India
| | - Amal M Sindi
- Faculty, Oral Diagnostic Sciences Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Prashant Kesharwani
- Faculty, Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
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Liu Z, Huang D, Li K, Li H, Liu L. Precise locating and cutting of the bone lid with a digital template during the treatment of large mandibular cysts: A case series study. J Craniomaxillofac Surg 2021; 49:358-361. [PMID: 33581955 DOI: 10.1016/j.jcms.2021.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/26/2020] [Accepted: 01/31/2021] [Indexed: 02/07/2023] Open
Abstract
The aim of the study was to investigate the efficacy and safety of a digital template in the bone lid technique during enucleation of large mandibular cysts. Six patients were enrolled in this study. Patients' preoperative CT data were collected to design and produce the digital templates. The bone lids were located and cut under the guidance of the digital templates, and then replanted and fixed following cyst enucleation. Postoperative clinical symptoms were observed and recorded from postoperative days 1-7. The follow-up visits were set at 3, 6, and 12 months. The cystic lesions were exactly and fully exposed without the need for secondary bone removal. The contours of the mandibles recovered well, with excellent sealing of the defects. Apart from one case with postoperative infection and one case with 2-month numbness of the lower lip, no other complications occurred. Six months after the surgery, patients' appearance and function were well-restored. A digital template in the bone lid technique during enucleation of large mandibular cysts was effective and safe.
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Affiliation(s)
- Zuoqiang Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dou Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Kaide Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lei Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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Etchebarne M, Fricain JC, Kerdjoudj H, Di Pietro R, Wolbank S, Gindraux F, Fenelon M. Use of Amniotic Membrane and Its Derived Products for Bone Regeneration: A Systematic Review. Front Bioeng Biotechnol 2021; 9:661332. [PMID: 34046400 PMCID: PMC8144457 DOI: 10.3389/fbioe.2021.661332] [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: 01/30/2021] [Accepted: 04/13/2021] [Indexed: 02/05/2023] Open
Abstract
Thanks to their biological properties, amniotic membrane (AM), and its derivatives are considered as an attractive reservoir of stem cells and biological scaffolds for bone regenerative medicine. The objective of this systematic review was to assess the benefit of using AM and amniotic membrane-derived products for bone regeneration. An electronic search of the MEDLINE-Pubmed database and the Scopus database was carried out and the selection of articles was performed following PRISMA guidelines. This systematic review included 42 articles taking into consideration the studies in which AM, amniotic-derived epithelial cells (AECs), and amniotic mesenchymal stromal cells (AMSCs) show promising results for bone regeneration in animal models. Moreover, this review also presents some commercialized products derived from AM and discusses their application modalities. Finally, AM therapeutic benefit is highlighted in the reported clinical studies. This study is the first one to systematically review the therapeutic benefits of AM and amniotic membrane-derived products for bone defect healing. The AM is a promising alternative to the commercially available membranes used for guided bone regeneration. Additionally, AECs and AMSCs associated with an appropriate scaffold may also be ideal candidates for tissue engineering strategies applied to bone healing. Here, we summarized these findings and highlighted the relevance of these different products for bone regeneration.
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Affiliation(s)
- Marion Etchebarne
- Univ. Bordeaux, INSERM, BIOTIS, U1026, Bordeaux, France
- CHU Bordeaux, Department of Maxillofacial Surgery, Bordeaux, France
| | - Jean-Christophe Fricain
- Univ. Bordeaux, INSERM, BIOTIS, U1026, Bordeaux, France
- CHU Bordeaux, Service de Chirurgie Orale, Bordeaux, France
| | - Halima Kerdjoudj
- Université de Reims Champagne Ardenne, EA 4691, Biomatériaux et Inflammation en Site Osseux (BIOS), Reims, France
- Université de Reims Champagne Ardenne, UFR d'Odontologie, Reims, France
| | - Roberta Di Pietro
- Department of Medicine and Ageing Sciences, Gabriele D'Annunzio University of Chieti-Pescara, Chieti, Italy
- StemTeCh Group, Gabriele D'Annunzio Foundation, Gabriele D'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Susanne Wolbank
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Florelle Gindraux
- Service de Chirurgie Orthopédique, Traumatologique et Plastique, CHU Besançon, Besançon, France
- Laboratoire de Nanomédecine, Imagerie, Thérapeutique EA 4662, Université Bourgogne Franche-Comté, Besançon, France
| | - Mathilde Fenelon
- Univ. Bordeaux, INSERM, BIOTIS, U1026, Bordeaux, France
- CHU Bordeaux, Service de Chirurgie Orale, Bordeaux, France
- *Correspondence: Mathilde Fenelon
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25
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Liu TJ, Zhou JN, Guo LH. Impact of different regenerative techniques and materials on the healing outcome of endodontic surgery: a systematic review and meta-analysis. Int Endod J 2020; 54:536-555. [PMID: 33159322 DOI: 10.1111/iej.13440] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Regenerative techniques are increasingly applied in endodontic surgery, but different materials used in regenerative techniques may have varying impacts on wound healing. OBJECTIVES This study evaluated the effects of different regenerative techniques and materials on the outcome of endodontic surgery. PARTICIPANTS patients with persistent periapical lesions, treated with root-end surgery. CONTROL endodontic surgery without the use of regenerative techniques/materials. INTERVENTION endodontic surgery with the use of regenerative techniques/materials. OUTCOME combined clinical and radiographic results. METHODS PubMed, Web of Science, Embase, SinoMed and the CENTRAL Cochrane were searched up to 10th July 2020, followed by a manual search. Detailed eligibility criteria were applied. Cochrane's risk-of-bias tool 2.0 was used to assess the risk of bias of the eligible studies. Meta-analysis was conducted using RevMan software. Subgroup analyses were performed based on the regenerative materials used in endodontic surgery. RESULTS Eleven eligible randomized controlled trials (RCTs) were included in the meta-analysis: two had a low risk of overall bias, and nine had some concerns of overall bias. Generally, the use of regenerative techniques significantly improved the outcome of endodontic surgery (risk ratio [RR]: 0.42; 95% confidence interval [CI], 0.26-0.68; P < 0.001). On subgroup analysis, the use of expanded polytetrafluoroethylene (e-PTFE) membranes alone had no added benefits (RR: 2.00; 95% CI, 0.22-18.33; P = 0.54). The application of collagen membranes or autologous platelet concentrates (APCs) alone was associated with a trend for better outcomes (RR: 0.51; 95% CI, 0.20-1.25; P = 0.14) (RR: 0.55; 95% CI, 0.18-1.71; P = 0.30). The combined use of collagen membranes and bovine-derived hydroxyapatite significantly improved the outcome (RR: 0.35; 95% CI, 0.17-0.75; P = 0.007). DISCUSSION This systematic review evaluated the effects of collagen membranes, e-PTFE membranes, APCs and bone grafting materials, providing detailed information about the risks and benefits of using each regenerative technique/material or its combination in endodontic surgery. CONCLUSIONS Regenerative techniques improve periapical lesion healing after endodontic surgery. The combined use of collagen membranes and bovine-derived hydroxyapatite may be beneficial as an adjunct to endodontic surgery. In contrast, the positive efficacy of e-PTFE membranes or APCs alone remains doubtful.
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Affiliation(s)
- T J Liu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - J N Zhou
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - L H Guo
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
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26
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Osorio R, Carrasco-Carmona Á, Toledano M, Osorio E, Medina-Castillo AL, Iskandar L, Marques A, Deb S, Toledano-Osorio M. Ex vivo investigations on bioinspired electrospun membranes as potential biomaterials for bone regeneration. J Dent 2020; 98:103359. [PMID: 32380133 DOI: 10.1016/j.jdent.2020.103359] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES To assess the surface characteristics and composition that may enhance osteoblasts viability on novel electrospun composite membranes (organic polymer/silicon dioxide nanoparticles). METHODS Membranes are composed by a novel polymer blend, the mixture of two hydrophilic copolymers 2-hydroxyethylmethacrylate-co-methylmethacrylate and 2-hydroxyethylacrylate-co-methylacrylate, and they are doped with silicon dioxide nanoparticles. Then the membranes were functionalized with zinc or doxycycline. The membranes were morphologically characterized by atomic force and scanning electron microscopy (FESEM), and mechanically probed using a nanoindenter. Biomimetic calcium phosphate precipitation on polymeric tissues was assessed. Cell viability tests were performed using human osteosarcoma cells. Cells morphology was also studied by FESEM. Data were analyzed by ANOVA, Student-Newman-Keuls and Student t tests (p < 0.05). RESULTS Silica doping of membranes enhanced bioactivity and increased mechanical properties. Membranes morphology and mechanical properties were similar to those of trabecular bone. Zinc and doxycycline doping did not exert changes but it increased novel membranes bioactivity. Membranes were found to permit osteoblasts proliferation. Silica-doping favored cells proliferation and spreading. As soon as 24 h after the seeding, cells in silica-doped membranes were firmly attached to experimental tissues trough filopodia, connected to each other. The cells produced collagen and minerals onto the surfaces. CONCLUSIONS Silica nanoparticles enhanced surface properties and osteoblasts viability on electrospun membranes. CLINICAL SIGNIFICANCE The ability of silica-doped matrices to promote precipitation of calcium phosphate, together with their mechanical properties, observed non-toxicity, stimulating effect on osteoblasts and its surface chemistry allowing covalent binding of proteins, offer a potential strategy for bone regeneration applications.
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Affiliation(s)
- Raquel Osorio
- Faculty of Dentistry, Biomaterials. University of Granada. Campus Cartuja sn. E-18071, Granada, Spain
| | - Álvaro Carrasco-Carmona
- Faculty of Dentistry, Biomaterials. University of Granada. Campus Cartuja sn. E-18071, Granada, Spain
| | - Manuel Toledano
- Faculty of Dentistry, Biomaterials. University of Granada. Campus Cartuja sn. E-18071, Granada, Spain.
| | - Estrella Osorio
- Faculty of Dentistry, Biomaterials. University of Granada. Campus Cartuja sn. E-18071, Granada, Spain
| | - Antonio Luis Medina-Castillo
- NanoMyP Spin-Off University of Granada Enterprise. BIC Building, office 235 and lab 121. Av. Innovación 1 E-18016, Armilla (Granada), Spain
| | - Lilis Iskandar
- Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London Bridge, London, SE1 9RT, UK
| | - Alexandre Marques
- Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London Bridge, London, SE1 9RT, UK
| | - Sanjukta Deb
- Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London Bridge, London, SE1 9RT, UK
| | - Manuel Toledano-Osorio
- Faculty of Dentistry, Biomaterials. University of Granada. Campus Cartuja sn. E-18071, Granada, Spain
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27
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Fenelon M, Etchebarne M, Siadous R, Grémare A, Durand M, Sentilhes L, Torres Y, Catros S, Gindraux F, L'Heureux N, Fricain JC. Assessment of fresh and preserved amniotic membrane for guided bone regeneration in mice. J Biomed Mater Res A 2020; 108:2044-2056. [PMID: 32319212 DOI: 10.1002/jbm.a.36964] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 03/23/2020] [Accepted: 03/28/2020] [Indexed: 12/13/2022]
Abstract
Thanks to its biological properties, the human amniotic membrane (HAM) can be used as a barrier membrane for guided bone regeneration (GBR). However, no study has assessed the influence of the preservation method of HAM for this application. This study aimed to establish the most suitable preservation method of HAM for GBR. Fresh (F), cryopreserved (C) lyophilized (L), and decellularized and lyophilized (DL) HAM were compared. The impact of preservation methods on collagen and glycosaminoglycans (GAG) content was evaluated using Masson's trichrome and alcian blue staining. Their suture retention strengths were assessed. In vitro, the osteogenic potential of human bone marrow mesenchymal stromal cells (hBMSCs) cultured on the four HAMs was evaluated using alkaline phosphatase staining and alizarin red quantification assay. In vivo, the effectiveness of fresh and preserved HAMs for GBR was assessed in a mice diaphyseal bone defect after 1 week or 1 month healing. Micro-CT and histomorphometric analysis were performed. The major structural components of HAM (collagen and GAG) were preserved whatever the preservation method used. The tearing strength of DL-HAM was significantly higher. In vitro, hBMSCs seeded on DL-HAM displayed a stronger ALP staining, and alizarin red staining quantification was significantly higher at Day 14. In vivo, L-HAM and DL-HAM significantly enhanced early bone regeneration. One month after the surgery, only DL-HAM slightly promoted bone regeneration. Several preserving methods of HAM have been studied for bone regeneration. Here, we have demonstrated that DL-HAM achieved the most promising results for GBR.
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Affiliation(s)
- Mathilde Fenelon
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France.,Department of Oral Surgery, CHU Bordeaux, Bordeaux, France
| | - Marion Etchebarne
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France.,Department of Maxillofacial Surgery, CHU Bordeaux, Bordeaux, France
| | - Robin Siadous
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France
| | - Agathe Grémare
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France.,Department of Odontology and Oral Health, CHU Bordeaux, Bordeaux, France
| | - Marlène Durand
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France.,CHU Bordeaux, CIC 1401, Bordeaux, France.,INSERM, CIC 1401, Bordeaux, France
| | - Loic Sentilhes
- Department of Obstetrics and Gynecology, Bordeaux University Hospital, University of Bordeaux, Bordeaux, France
| | - Yoann Torres
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France
| | - Sylvain Catros
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France.,Department of Oral Surgery, CHU Bordeaux, Bordeaux, France
| | - Florelle Gindraux
- Department of Orthopedic, Traumatology & Plastic Surgery, University Hospital of Besançon, Besançon, France.,Nanomedicine Lab, Imagery and Therapeutics (EA 4662), SFR FED 4234, University of Franche-Comté, Besançon, France
| | - Nicolas L'Heureux
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France
| | - Jean-Christophe Fricain
- INSERM, Laboratory BioTis, UMR 1026, University of Bordeaux, Bordeaux, France.,Department of Oral Surgery, CHU Bordeaux, Bordeaux, France
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28
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Papi P, Di Murro B, Tromba M, Passarelli PC, D’Addona A, Pompa G. The Use of a Non-Absorbable Membrane as an Occlusive Barrier for Alveolar Ridge Preservation: A One Year Follow-Up Prospective Cohort Study. Antibiotics (Basel) 2020; 9:antibiotics9030110. [PMID: 32138241 PMCID: PMC7148478 DOI: 10.3390/antibiotics9030110] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 11/16/2022] Open
Abstract
:The aims of this study were to obtain preliminary data and test the clinical efficacy of a novel nonporous dense-polytetrafluoroethylene (d-PTFE) membrane (permamem®, botiss) in alveolar ridge preservation (ARP) procedures with a flapless approach. A traumatic extraction was performed in the premolar maxillary area, and a d-PTFE membrane was used to seal the alveolar cavity: no biomaterial was used to graft the socket and the membrane was left intentionally exposed and stabilized with sutures. The membrane was removed after four weeks and dental implants were placed four months after the procedure. The primary outcome variables were defined as the dimensional changes in the ridge width and height after four months. A total of 15 patients were enrolled in this study. The mean width of the alveolar cavity was 8.9 ± 1.1 mm immediately after tooth extraction, while four months later a mean reduction of 1.75 mm was experienced. A mean vertical reduction of 0.9 ± 0.42 mm on the buccal aspect and 0.6 ± 0.23 mm on the palatal aspect were recorded at implant placement. Within the limitations of this study, the d-PTFE membrane proved to be effective in alveolar ridge preservation, with the outcomes of the regeneration not affected by the complete exposure of this biomaterial.
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Affiliation(s)
- Piero Papi
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (B.D.M.); (M.T.); (G.P.)
- Correspondence:
| | - Bianca Di Murro
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (B.D.M.); (M.T.); (G.P.)
| | - Marco Tromba
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (B.D.M.); (M.T.); (G.P.)
| | - Pier Carmine Passarelli
- Division of Oral Surgery and Implantology, Department of Head and Neck, Oral Surgery, and Implantology Unit, Institute of Clinical Dentistry, Catholic University of Sacred Hearth, Fondazione Policlinico Universitario Gemelli, 00168 Rome, Italy; (P.C.P.); (A.D.)
| | - Antonio D’Addona
- Division of Oral Surgery and Implantology, Department of Head and Neck, Oral Surgery, and Implantology Unit, Institute of Clinical Dentistry, Catholic University of Sacred Hearth, Fondazione Policlinico Universitario Gemelli, 00168 Rome, Italy; (P.C.P.); (A.D.)
| | - Giorgio Pompa
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (B.D.M.); (M.T.); (G.P.)
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29
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Higuchi J, Fortunato G, Woźniak B, Chodara A, Domaschke S, Męczyńska-Wielgosz S, Kruszewski M, Dommann A, Łojkowski W. Polymer Membranes Sonocoated and Electrosprayed with Nano-Hydroxyapatite for Periodontal Tissues Regeneration. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1625. [PMID: 31731775 PMCID: PMC6915502 DOI: 10.3390/nano9111625] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 01/21/2023]
Abstract
Diseases of periodontal tissues are a considerable clinical problem, connected with inflammatory processes and bone loss. The healing process often requires reconstruction of lost bone in the periodontal area. For that purpose, various membranes are used to prevent ingrowth of epithelium in the tissue defect and enhance bone regeneration. Currently-used membranes are mainly non-resorbable or are derived from animal tissues. Thus, there is an urgent need for non-animal-derived bioresorbable membranes with tuned resorption rates and porosity optimized for the circulation of body nutrients. We demonstrate membranes produced by the electrospinning of biodegradable polymers (PDLLA/PLGA) coated with nanohydroxyapatite (nHA). The nHA coating was made using two methods: sonocoating and electrospraying of nHA suspensions. In a simulated degradation study, for electrosprayed membranes, short-term calcium release was observed, followed by hydrolytic degradation. Sonocoating produced a well-adhering nHA layer with full coverage of the fibers. The layer slowed the polymer degradation and increased the membrane wettability. Due to gradual release of calcium ions the degradation-associated acidity of the polymer was neutralized. The sonocoated membranes exhibited good cellular metabolic activity responses against MG-63 and BJ cells. The collected results suggest their potential use in Guided Tissue Regeneration (GTR) and Guided Bone Regeneration (GBR) periodontal procedures.
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Affiliation(s)
- Julia Higuchi
- Laboratory of Nanostructures, Institute of High Pressure Physics, Polish Academy of Sciences, 01142 Warsaw, Poland; (B.W.); (A.C.); (W.Ł.)
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02507 Warsaw, Poland
- Laboratory for Biomimetic Membranes and Textiles, Empa Swiss Federal Laboratories for Materials Science and Technology, 9014 St. Gallen, Switzerland
| | - Giuseppino Fortunato
- Laboratory for Biomimetic Membranes and Textiles, Empa Swiss Federal Laboratories for Materials Science and Technology, 9014 St. Gallen, Switzerland
| | - Bartosz Woźniak
- Laboratory of Nanostructures, Institute of High Pressure Physics, Polish Academy of Sciences, 01142 Warsaw, Poland; (B.W.); (A.C.); (W.Ł.)
| | - Agnieszka Chodara
- Laboratory of Nanostructures, Institute of High Pressure Physics, Polish Academy of Sciences, 01142 Warsaw, Poland; (B.W.); (A.C.); (W.Ł.)
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02507 Warsaw, Poland
| | - Sebastian Domaschke
- Experimental Continuum Mechanics, Empa Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland;
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zürich, 8092 Zürich, Switzerland
| | - Sylwia Męczyńska-Wielgosz
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, 03195 Warsaw, Poland;
| | - Marcin Kruszewski
- Department of Molecular Biology and Translational Research, Institute of Rural Health, 20090 Lublin, Poland;
| | - Alex Dommann
- Department Materials meet Life, Empa Swiss Federal Laboratories for Materials Science and Technology, 9014 St. Gallen, Switzerland;
| | - Witold Łojkowski
- Laboratory of Nanostructures, Institute of High Pressure Physics, Polish Academy of Sciences, 01142 Warsaw, Poland; (B.W.); (A.C.); (W.Ł.)
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