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Alazmi SO. A review on guided bone regeneration using titanium mesh. Bioinformation 2024; 20:562-565. [PMID: 39132237 PMCID: PMC11309112 DOI: 10.6026/973206300200562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/31/2024] [Accepted: 05/31/2024] [Indexed: 08/13/2024] Open
Abstract
The gold standard for bone regeneration in atrophic ridge patients is guided bone regeneration (GBR). This makes it possible to get enough bone volume for an appropriate implant-prosthetic rehabilitation. The barrier membranes must meet the primary GBR design requirements, which include adequate integration with the surrounding tissue, spaciousness and clinical manageability. Titanium mesh's superior mechanical qualities and biocompatibility have broadened the indications of GBR technology, enabling it to be used to restore alveolar ridges with more significant bone defects. GBR with titanium mesh is being used in many clinical settings and for a range of clinical procedures. Furthermore, several advancements in digitalization and material modification have resulted from the study of GBR using titanium mesh. Hence, we report a review on the various characteristics of titanium mesh and its current use in clinical settings for bone augmentation.
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Affiliation(s)
- Saad Obaid Alazmi
- Department of Periodontology and Implant Dentistry, College of Dentistry, Qassim University, Saudi Arabia
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2
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Wang Y, Sun Y, Yang B, Li J, Liang C. The effect and mechanism of liraglutide on the biological functions of BMSCs in diabetic patients. Oral Dis 2024. [PMID: 38501359 DOI: 10.1111/odi.14931] [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: 08/04/2023] [Revised: 02/28/2024] [Accepted: 03/05/2024] [Indexed: 03/20/2024]
Abstract
OBJECTIVES To investigate the effect of liraglutide on osteogenesis in human alveolar bone marrow mesenchymal stem cells (BMSCs) and the influence of liraglutide on implant-bone integration in rats with T2DM. SUBJECTS AND METHODS Extracting BMSCs from the alveoli of diabetic patients treated with insulin. BMSCs were treated with different concentrations of liraglutide. Osteogenesis and the underlying mechanism were investigated via ALP detection, ALP staining, Alizarin Red S staining, Western blotting, and RT-PCR. Liraglutide was given to Wistar and GK rats after implantation, and new bone formation around the implants was analyzed via micro-CT. Implant-bone integration in rats was investigated via toluidine blue staining. RESULTS Liraglutide enhanced osteogenesis in BMSCs via the BMP2/Smad/Runx2 signaling pathway. The optimal concentration of liraglutide that promoted osteogenesis was 10-8 mol/L. At concentrations higher than 10-7 mol/L, liraglutide had a negative effect on BMSCs. At a concentration of 10-8 mol/L liraglutide, BMSCs and diabetes mellitus-bone marrow stromal cells (DM-BMSCs) showed optimal osteogenesis. Liraglutide promoted implant-bone integration and new bone formation in Wistar and GK rats. CONCLUSIONS Liraglutide not only promotes osteogenesis of BMSCs in normoglycemic individuals but also enhances osteogenesis of BMSCs in diabetic patients treated with insulin and enhances osseointegration in rats.
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Affiliation(s)
- Yao Wang
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Yujie Sun
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Bo Yang
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Jun Li
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Chao Liang
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
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Byeon SM, Bae TS, Lee MH, Ahn SG. Guided bone regeneration of calcium phosphate-coated and strontium ranelate-doped titanium mesh in a rat calvarial defect model. J Periodontal Implant Sci 2024; 54:54.e3. [PMID: 38290999 DOI: 10.5051/jpis.2303000150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/20/2023] [Accepted: 11/29/2023] [Indexed: 02/01/2024] Open
Abstract
PURPOSE When applied alone, titanium (Ti) mesh may not effectively block the penetration of soft tissues, resulting in insufficient new bone formation. This study aimed to confer bioactivity and improve bone regeneration by doping calcium phosphate (CaP) precipitation and strontium (Sr) ranelate onto a TiO2 nanotube (TNT) layer on the surface of a Ti mesh. METHODS The TNT layer was obtained by anodizing on the Ti mesh, and CaP was formed by cyclic pre-calcification. The final specimens were produced by doping with Sr ranelate. The surface properties of the modified Ti mesh were investigated using high-resolution field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction. To evaluate the effects of surface treatment on cell viability, osteoblasts were cultured for 1-3 days, and their absorbance was subsequently measured. In an in vivo experiment, critical-size defects were created in rat calvaria (Ф=8 mm). After 5 weeks, the rats were sacrificed (n=4 per group) and bone blocks were taken for micro-computed tomography and histological analysis. RESULTS After immersing the Sr ranelate-doped Ti mesh in simulated body fluid, the protrusions observed in the initial stage of hydroxyapatite were precipitated as a dense structure. On day 3 of osteoblast culture, cell viability was significantly higher on the pre-calcified Sr ranelate-doped Ti mesh surface than on the untreated Ti mesh surface (P<0.05). In the in vivo experiment, a bony bridge formed between the surrounding basal bone and the new bone under the Sr ranelate-doped Ti mesh implanted in a rat calvarial defect, closing the defect. New bone mineral density (0.91±0.003 g/mm3) and bone volume (29.35±2.082 mm3) significantly increased compared to the other groups (P<0.05). CONCLUSIONS Cyclic pre-calcification of a Ti mesh with a uniform TNT layer increased bioactivity, and subsequent doping with Sr ranelate effectively improved bone regeneration in bone defects.
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Affiliation(s)
- Seon Mi Byeon
- Department of Dental Biomaterials, Institute of Biodegradable Materials, School of Dentistry, Jeonbuk National University, Jeonju, Korea
| | - Tae Sung Bae
- Department of Dental Biomaterials, Institute of Biodegradable Materials, School of Dentistry, Jeonbuk National University, Jeonju, Korea
| | - Min Ho Lee
- Department of Dental Biomaterials, Institute of Biodegradable Materials, School of Dentistry, Jeonbuk National University, Jeonju, Korea
| | - Seung Geun Ahn
- Department of Prosthodontics, School of Dentistry, Jeonbuk National University, Jeonju, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea.
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Poli PP, Manfredini M, Maiorana C, Salina FE, Beretta M. Correlation between Accuracy in Computer-Guided Implantology and Peri-Implant Tissue Stability: A Prospective Clinical and Radiological Pilot Study. J Clin Med 2023; 12:5098. [PMID: 37568499 PMCID: PMC10419372 DOI: 10.3390/jcm12155098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/23/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
The present pilot study was designed by hypothesizing a possible correlation between lack of accuracy in implant placement and peri-implant hard and soft tissue health. A total of five patients underwent computer-guided implant surgery and full-arch immediate loading between 2013 and 2014. They subsequently underwent postoperative cone-beam computed tomography (CBCT). After a follow-up of 5 years, all patients were recalled for a clinical-radiographic evaluation of peri-implant health status. The mean linear deviation was 0.5 ± 0.2 mm at the implant's head and 0.6 ± 0.2 mm at the implant's apex, while the mean angular deviation of the long axis was 2.8° ± 1.2°. A mean marginal bone loss (MBL) of 1.16 ± 0.94 mm and 2.01 ± 1.76 mm was observed after 1 and 5 years of follow-up, respectively. At 5 years, the mean peri-implant probing depth (PPD) was 4.09 ± 1.44 mm, 66.6% of the evaluated implants showed peri-implant bleeding on probing (BOP), keratinized mucosa (KM) was <2 mm in 48.4% of cases, and mucosal recession (REC) ≥ 1 mm was assessed in 45.4% of the included implants. A negative correlation was observed between bucco-palatal/lingual linear inaccuracy and MBL, PPD, BOP, and KM.
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Affiliation(s)
- Pier Paolo Poli
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy; (P.P.P.); (C.M.); (F.E.S.); (M.B.)
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Mattia Manfredini
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy; (P.P.P.); (C.M.); (F.E.S.); (M.B.)
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Carlo Maiorana
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy; (P.P.P.); (C.M.); (F.E.S.); (M.B.)
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Federica E. Salina
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy; (P.P.P.); (C.M.); (F.E.S.); (M.B.)
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Mario Beretta
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy; (P.P.P.); (C.M.); (F.E.S.); (M.B.)
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
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Scribante A, Ghizzoni M, Pellegrini M, Pulicari F, Manfredini M, Poli PP, Maiorana C, Spadari F. Full-Digital Customized Meshes in Guided Bone Regeneration Procedures: A Scoping Review. PROSTHESIS 2023; 5:480-495. [DOI: 10.3390/prosthesis5020033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Meshes, especially titanium ones, are being widely applied in oral surgery. In guided bone regeneration (GBR) procedures, their use is often paired with membranes, being resorbable or non-resorbable. However, they present some limitations, such as difficulty in the treatment of severe bone defects, alongside frequent mesh exposure. Customized meshes, produced by a full-digital process, have been recently introduced in GBR procedures. Therefore, the focus of the present review is to describe the main findings in recent years of clinical trials regarding patient-specific mesh produced by CAD/CAM and 3D printing workflow, made in titanium or even PEEK, applied to GBR surgeries. The purpose is to analyze their clinical management, advantages, and complications. This scoping review considered randomized clinical trials, observational studies, cohort studies, and case series/case reports studies. Studies that did not meet inclusion criteria were excluded. The preferred reporting items for scoping reviews (PRISMA-ScR) consensus was followed. A total of 15 studies were selected for this review. Based on the studies included, the literature suggests that meshes produced by a digital process are used to restore complex and severe bone defects. Moreover, they give satisfactory aesthetic results and fit the defects, counteracting grid exposure. However, more clinical trials should be conducted to evaluate long-term results, the rate of complications, and new materials for mesh manufacturing.
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Affiliation(s)
- Andrea Scribante
- Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Martina Ghizzoni
- Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Matteo Pellegrini
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Federica Pulicari
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Mattia Manfredini
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Pier Paolo Poli
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Carlo Maiorana
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
| | - Francesco Spadari
- Maxillofacial Surgery and Dental Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122 Milan, Italy
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Yang W, Chen D, Wang C, Apicella D, Apicella A, Huang Y, Li L, Zheng L, Ji P, Wang L, Fan Y. The effect of bone defect size on the 3D accuracy of alveolar bone augmentation performed with additively manufactured patient-specific titanium mesh. BMC Oral Health 2022; 22:557. [PMID: 36456929 PMCID: PMC9713982 DOI: 10.1186/s12903-022-02557-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 11/03/2022] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE Additively manufactured (3D-printed) titanium meshes have been adopted in the dental field as non-resorbable membranes for guided bone regeneration (GBR) surgery. However, according to previous studies, inaccuracies between planned and created bone volume and contour are common, and many reasons have been speculated to affect its accuracy. The size of the alveolar bone defect can significantly increase patient-specific titanium mesh design and surgical difficulty. Therefore, this study aimed to analyze and investigate the effect of bone defect size on the 3D accuracy of alveolar bone augmentation performed with additively manufactured patient-specific titanium meshes. METHODS Twenty 3D-printed patient-specific titanium mesh GBR surgery cases were enrolled, in which 10 cases were minor bone defect/augmentation (the planned bone augmentation surface area is less than or equal to 150 mm2 or one tooth missing or two adjacent front-teeth/premolars missing) and another 10 cases were significant bone defect/augmentation (the planned bone augmentation surface area is greater than 150 mm2 or missing adjacent teeth are more than two (i.e. ≥ three teeth) or missing adjacent molars are ≥ two teeth). 3D digital reconstruction/superposition technology was employed to investigate the bone augmentation accuracy of 3D-printed patient-specific titanium meshes. RESULTS There was no significant difference in the 3D deviation distance of bone augmentation between the minor bone defect/augmentation group and the major one. The contour lines of planned-CAD models in two groups were basically consistent with the contour lines after GBR surgery, and both covered the preoperative contour lines. Moreover, the exposure rate of titanium mesh in the minor bone defect/augmentation group was slightly lower than the major one. CONCLUSION It can be concluded that the size of the bone defect has no significant effect on the 3D accuracy of alveolar bone augmentation performed with the additively manufactured patient-specific titanium mesh.
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Affiliation(s)
- Wei Yang
- grid.459985.cStomatological Hospital of Chongqing Medical University, Chongqing, 401147 China ,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Oral Higher Education Biomedical Engineering, Chongqing, 401147 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147 China
| | - Dan Chen
- grid.64939.310000 0000 9999 1211Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100083 China
| | - Chao Wang
- grid.459985.cStomatological Hospital of Chongqing Medical University, Chongqing, 401147 China ,grid.64939.310000 0000 9999 1211Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100083 China
| | - Davide Apicella
- Marrelly Health, calabrodental hospital, 88900 Crotone, Italy
| | - Antonio Apicella
- Advanced Materials Lab, Department of Architecture and Industrial Design, University of Campania, 81031 Aversa, Italy
| | - Yuanding Huang
- grid.459985.cStomatological Hospital of Chongqing Medical University, Chongqing, 401147 China ,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Oral Higher Education Biomedical Engineering, Chongqing, 401147 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147 China
| | - Linzhi Li
- grid.459985.cStomatological Hospital of Chongqing Medical University, Chongqing, 401147 China ,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Oral Higher Education Biomedical Engineering, Chongqing, 401147 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147 China
| | - Lingling Zheng
- grid.64939.310000 0000 9999 1211Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100083 China
| | - Ping Ji
- grid.459985.cStomatological Hospital of Chongqing Medical University, Chongqing, 401147 China ,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Oral Higher Education Biomedical Engineering, Chongqing, 401147 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147 China
| | - Lizhen Wang
- grid.64939.310000 0000 9999 1211Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100083 China
| | - Yubo Fan
- grid.64939.310000 0000 9999 1211Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, 100083 China
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Full Digital Model-Free Maxillary Prosthetic Rehabilitation by Means of One-Piece Implants: A Proof of Concept Clinical Report with Three-Years Follow Up. PROSTHESIS 2022. [DOI: 10.3390/prosthesis4020020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Implant rehabilitation is a daily practice in dentistry, and patients often have heightened expectations regarding both the functional and the aesthetic outcome. Implant–abutment connection (IAC) is involved in the long-term aesthetic quality of the rehabilitation. The use of one-piece implants for fixing dentures may prevent the mechanical and biological implication of the implant–abutment interface, resulting in a better quality of hard and soft tissue maintenance. In this case report, we present a novel one-piece implant in a maxillary rehabilitation with a full model-free digital approach.
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Barrier Membrane in Regenerative Therapy: A Narrative Review. MEMBRANES 2022; 12:membranes12050444. [PMID: 35629770 PMCID: PMC9143924 DOI: 10.3390/membranes12050444] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 02/01/2023]
Abstract
Guided bone and tissue regeneration remains an integral treatment modality to regenerate bone surrounding teeth and dental implants. Barrier membranes have been developed and produced commercially to allow space for bone regeneration and prevent the migration of unwanted cells. Ideal membrane properties, including biocompatibility, sufficient structural integrity and suitable shelf life with easy clinical application, are important to ensure good clinical regenerative outcomes. Membranes have various types, and their clinical application depends on the origin, material, structure and properties. This narrative review aims to describe the currently available barrier membranes in terms of history, main features, types, indication and clinical application and classify them into various groups. Various membranes, including those which are resorbable and non-resorbable, synthetic, added with growth factors and composed of modern materials, such as high-grade polymer (Polyetheretherketone), are explored in this review.
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Azhar I, Ayulita D, Laksono H, Margaretha T. The efficiency of PRF, PTFE, and titanium mesh with collagen membranes for vertical alveolar bone addition in dental implant therapy: A narrative review. J Int Oral Health 2022. [DOI: 10.4103/jioh.jioh_7_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Sun R, Liang C, Sun Y, Xu Y, Geng W, Li J. Effects of metformin on the osteogenesis of alveolar BMSCs from diabetic patients and implant osseointegration in rats. Oral Dis 2021; 28:1170-1180. [PMID: 33606350 DOI: 10.1111/odi.13808] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/09/2021] [Accepted: 02/15/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVES This study aimed to explore the effects of metformin on osteogenic differentiation of alveolar bone marrow mesenchymal stem cells (BMSCs) from type-2 diabetes mellitus (T2DM) patients (DM-BMSCs) and implant osseointegration in rats, screen the optimal concentration, and investigate whether metformin could protect against the adverse impact of T2DM on BMSC osteogenic capacity. SUBJECTS AND METHODS Different concentrations of metformin were administered to human-derived BMSCs and Wistar rats receiving implants. ALP detection, alizarin red staining, real-time RT-PCR and Western blotting were performed to detect osteogenesis and investigate the mechanism. Toluidine blue staining was performed to analyse bone-implant contact in rats. RESULTS Metformin increased implant osseointegration in a rat model and promoted the osteogenic capacity of DM-BMSCs via the AMPK/BMP/Smad signalling pathway, and 125 μM was the optimal concentration; however, concentrations over 200 µM, metformin showed an inhibitory effect on DM-BMSCs. Additionally, metformin at the optimal concentration (125 µM) identified in this study could compensate for the negative impacts of T2DM on the osteogenic differentiation of BMSCs. CONCLUSIONS Metformin can promote the osteogenesis of BMSCs from T2DM patients and osseointegration in rats, and it might be an effective drug for increasing the success rate of T2DM-associated implants.
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Affiliation(s)
- Rongxin Sun
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Chao Liang
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Yujie Sun
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Yifan Xu
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Wei Geng
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Jun Li
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
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Xie Y, Li S, Zhang T, Wang C, Cai X. Titanium mesh for bone augmentation in oral implantology: current application and progress. Int J Oral Sci 2020; 12:37. [PMID: 33380722 PMCID: PMC7773733 DOI: 10.1038/s41368-020-00107-z] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 02/05/2023] Open
Abstract
Guided bone regeneration (GBR) is an effective and simple method for bone augmentation, which is often used to reconstruct the alveolar ridge when the bone defect occurs in the implant area. Titanium mesh has expanded the indications of GBR technology due to its excellent mechanical properties and biocompatibility, so that the GBR technology can be used to repair alveolar ridges with larger bone defects, and can obtain excellent and stable bone augmentation results. Currently, GBR with titanium mesh has various clinical applications, including different clinical procedures. Bone graft materials, titanium mesh covering methods, and titanium mesh fixing methods are also optional. Moreover, the research of GBR with titanium mesh has led to multifarious progresses in digitalization and material modification. This article reviews the properties of titanium mesh and the difference of titanium mesh with other barrier membranes; the current clinical application of titanium mesh in bone augmentation; common complications and management and prevention methods in the application of titanium mesh; and research progress of titanium mesh in digitization and material modification. Hoping to provide a reference for further improvement of titanium mesh in clinical application and related research of titanium mesh.
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Affiliation(s)
- Yu Xie
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Head and Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Songhang Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Head and Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tianxu Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Head and Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chao Wang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Head and Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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