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Kim YT, Lee JH. Profilometric, esthetic, and patient-reported outcomes of the L-shape technique combined with delayed connective tissue grafting in the maxillary anterior region: A 3-year case series study. J ESTHET RESTOR DENT 2024. [PMID: 38534037 DOI: 10.1111/jerd.13229] [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: 02/11/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024]
Abstract
OBJECTIVE To evaluate the profilometric, esthetic, and patient-reported outcomes of peri-implant tissues in the maxillary anterior esthetic zone following guided bone regeneration (GBR) using the L-shape technique combined with delayed connective tissue grafting (CTG). MATERIALS AND METHODS Profilometric and pink esthetic score (PES) measurements were performed at the time of implant surgery with GBR (T0) and at the 1- (T1), 2- (T2), and 3-year (T3) follow-up. Patient-reported outcomes were also assessed using the Oral Health Impact Profile-14 (OHIP-14) questionnaire. Statistical analysis over 3 years of follow-up assessed changes at time points (T0, T1, T2, and T3) and time periods (T0-T1, T0-T2, and T0-T3) using the Wilcoxon signed-rank test. RESULTS A total of 12 patients (57.5 ± 12.3 years) were included in this study. The mean profilometric change in peri-implant tissues over the 3-year follow-up period was 3.49 ± 1.11 mm, and the buccal contours were not significantly different between the comparison periods. The PES remained stable, while all OHIP-14 domain scores improved significantly. CONCLUSION Simultaneous implant placement and GBR using the L-shape technique combined with delayed CTG in the maxillary anterior region provides stable buccal profiles and consistent esthetics and improves patient-reported quality of life over a 3-year period. CLINICAL SIGNIFICANCE This study demonstrated that GBR using the L-shape technique combined with delayed CTG in the maxillary anterior region improved the buccal profile, esthetics, and patient-reported quality of life.
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Affiliation(s)
- Yeon-Tae Kim
- Department of Periodontology, Daejeon Dental Hospital, Institute of Wonkwang Dental Research, Wonkwang University College of Dentistry, Daejeon, South Korea
| | - Jae-Hong Lee
- Department of Periodontology, College of Dentistry and Institute of Oral Bioscience, Jeonbuk National University, Jeonju, South Korea
- Research Institute of Clinical Medicine of Jeonbuk National University, Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, South Korea
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Kwon YH, Song YW, Park JY, Cha JK, Thoma DS, Jung UW, Jung RE. Ridge preservation using a self-retaining block type bone substitute for extraction sockets with buccal dehiscence defects - A preclinical study. Clin Oral Implants Res 2024; 35:330-339. [PMID: 38126121 DOI: 10.1111/clr.14229] [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: 07/11/2023] [Revised: 11/30/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE To evaluate the effect of a self-retaining block-type bone substitute (srBB) on the dimensional stability of the horizontal ridge width at the coronal level in a buccal dehiscence model. MATERIALS AND METHODS Four box-shaped bone defects with a buccal dehiscence were surgically prepared in the partially edentulous mandible (n = 6). Experimental biomaterials were randomly assigned to each site: (1) Control group: no treatment, (2) particle-type bone substitute (PBS) group, (3) collagenated soft block bone substitute (csBB) group, and (4) self-retaining synthetic block bone (srBB) group. In all grafted groups, a collagen membrane covered the biomaterials. At 16 weeks, clinical, histological, and radiographic analyses were performed. RESULTS Three of the six blocks in the srBB group became exposed and fell out during the first week after surgery. Therefore, the remaining three specimens were renamed RsrBB group. The RsrBB group showed an increase horizontal ridge compared to the pristine bone width at 2-4 mm below the CEJ, while the other groups showed resorption (augmented width at 2 mm below: 4.2, 42.4, 36.2, and 110.1% in the control, PBS, csBB, and RsrBB groups, respectively). The mineralized bone area was largest in the RsrBB group (4.74, 3.44, 5.67, and 7.77 mm2 in the control, PBS, csBB, and RsrBB groups, respectively.). CONCLUSIONS The srBB group demonstrated the highest volume stability at the coronal level. These findings would potentially suggest that self-retaining block bone substitute might be a good candidate for alveolar ridge preservation.
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Affiliation(s)
- Yoon-Hee Kwon
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Young Woo Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
- Department of Periodontology, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Daniel S Thoma
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ronald E Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland
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Takafuji K, Oyamada Y, Hatakeyama W, Kihara H, Shimazaki N, Fukutoku A, Satoh H, Kondo H. Quantitative analysis of change in bone volume 5 years after sinus floor elevation using plate-shaped bone substitutes: a prospective observational study. Int J Implant Dent 2024; 10:9. [PMID: 38372934 PMCID: PMC10876503 DOI: 10.1186/s40729-023-00501-2] [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: 10/28/2022] [Accepted: 09/09/2023] [Indexed: 02/20/2024] Open
Abstract
PURPOSE Tricalcium phosphate (TCP) has osteoconductive ability and reportedly offers similar clinical results as autogenous bone grafts in dental implant treatment. However, few reports quantify temporal changes in augmented bone volume after sinus augmentation. We aimed to establish a three-dimensional (3D) quantification method to assess bone volume after sinus augmentation and to evaluate biocompatibility of the TCP plate. METHODS Maxillary sinus floor augmentation was performed employing the lateral window technique, and plate-shaped β-TCP (TCP plate) was used instead of granular bone grafting materials. After lifting the sinus membrane, the TCP plate was inserted and supported by dental implants or micro-screws. The changes in bone volumes in the maxillary sinus before and after surgery were recorded using cone-beam computed tomography, saved as Digital Imaging and Communications in Medicine-formatted files, and transformed to Standard Triangle Language (STL)-formatted files. Pre- and post-operative STL data of bone volume were superimposed, and the augmented bone volume was calculated. Moreover, changes in bone volumes, TCP plate resorption rates, and bone heights surrounding the implants were three dimensionally quantified. RESULTS Fifteen implants in nine subjects were included in this study. TCP plates secured long-term space making, with results similar to those of granular bone substitutes. Newly formed bone was identified around the implant without bone graft material. TCP plate was absorbed and gradually disappeared. CONCLUSIONS A novel 3D quantification method was established to evaluate changes in bone volume. Clinical application of TCP plate in sinus augmentation could be a better procedure in terms of prognosis and safety.
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Affiliation(s)
- Kyoko Takafuji
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
- Department of Fixed Prosthodontics and Oral Implantology, Aichi Gakuin University, Nagoya, Japan
| | - Yutaro Oyamada
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Wataru Hatakeyama
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Hidemichi Kihara
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Nobuko Shimazaki
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Akihiro Fukutoku
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Hiroaki Satoh
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Hisatomo Kondo
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan.
- Department of Fixed Prosthodontics and Oral Implantology, Aichi Gakuin University, Nagoya, Japan.
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Wang Y, Zhang X, Zhang S, Yang G, Li Y, Mao Y, Yang L, Chen J, Wang J. Development of a rapid-shaping and user-friendly membrane with long-lasting space maintenance for guided bone regeneration. J Mater Chem B 2024; 12:1495-1511. [PMID: 38223916 DOI: 10.1039/d3tb02137h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
The success of guided bone regeneration (GBR) surgery depends largely on the use of GBR membranes to maintain space for bone regeneration and prevent soft tissue ingrowth. However, currently available commercial degradable GBR membranes are often limited by poor space maintenance ability and require additional suture or nail for fixation. To overcome these limitations, we developed a rapid-shaping, adhesive, and user-friendly GBR membrane (PLGA film-PGN) with long-lasting space maintenance by immersing an electrospun poly(lactide-co-glycolic acid) film in a photo-crosslinkable hydrogel composed of polyethylene glycol diacrylate, gelatin methacryloyl, and nanosilicate (PGN). The PGN hydrogel significantly improved the mechanical strength of the PLGA film-PGN and endowed it with plasticity and adhesive properties, making it more maneuverable. The maximum bending force that the PLGA film-PGN could withstand was over 55 times higher than that of the HEAL ALL film (a commonly used commercial GBR membrane). PLGA film-PGN also promoted the proliferation and osteogenic differentiation of rBMSCs. According to a critical-size rat calvarial defect model, PLGA film-PGN maintained the space within the defect area and significantly enhanced bone formation 4 weeks after the surgery. To conclude, the study provided a novel perspective on GBR membrane design and the multifunctional PLGA film-PGN membrane demonstrated great potential for bone defect reconstruction.
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Affiliation(s)
- Yuting Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xin Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Shu Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Guangmei Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yuanyuan Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yilin Mao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Linxin Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Junyu Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Jian Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
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Cucchi A, Maiani F, Franceschi D, Sassano M, Fiorino A, Urban IA, Corinaldesi G. The influence of vertical ridge augmentation techniques on peri-implant bone loss: A systematic review and meta-analysis. Clin Implant Dent Relat Res 2024; 26:15-65. [PMID: 38114425 DOI: 10.1111/cid.13282] [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: 03/23/2023] [Revised: 08/09/2023] [Accepted: 09/12/2023] [Indexed: 12/21/2023]
Abstract
INTRODUCTION The primary aim of this systematic review was to investigate and compare the outcomes of different vertical ridge augmentation (VRA) techniques in relation to peri-implant bone loss (PBL), after at least 12 months of functional loading. MATERIAL AND METHODS The search was conducted to find all the studies about VRA and measurements of PBL with at least 12 months follow-up. Three pairwise meta-analysis (MA) was performed to completely evaluate the outcomes. RESULTS A total of 42 studies were included, of which 11 were randomized clinical trials (RCTs). RCTs were available only for guided bone regeneration (GBR), onlay, and inlay techniques. The weighted mean estimate (WME) of PBL value was found to be 1.38 mm (95% confidence interval [95% CI]: 1.10-1.66) after a mean follow-up of 41.0 ± 27.8 months. GBR, Inlay, Onlay, osteodistraction, and SBB represented in weight 32.9%, 30.6%, 25.0%, 7.6%, and 3.9%, respectively; and their WME (95% CI) were 1.06 (0.87-1.26) mm, 1.72 (1.00-2.43) mm, 1.31 (0.87-1.75) mm, 1.81 (0.87-1.75) mm, and 0.66 (0.55-0.77) mm, respectively. Among the secondary outcomes, the analysis was conducted for vertical bone gain, healing complication rate, surgical complication rate, implant survival, and success rate. CONCLUSIONS The primary findings of the meta-analysis, based on the changes between final and baseline values, showed that the peri-implant bone loss could be influenced by the type of intervention but there is a need to evaluate in RCTs the behavior of the peri-implant bone levels after long-term follow-up for all techniques.
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Affiliation(s)
| | | | - Debora Franceschi
- Department of Experimental and Clinic Medicine, University of Florence, Firenze, Italy
| | - Michele Sassano
- Department of Life Sciences and Public Health, Catholic University of The Sacred Heart, Rome, Italy
| | - Antonino Fiorino
- Department of Neuroscience and Reproductive and Odontostomatological Sciences, "Federico II" University of Naples, Napoli, Italy
| | - Istvan A Urban
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
- Department of Periodontics, University of Szeged, Szeged, Hungary
- Urban Regeneration Institute, Budapest, Hungary
| | - Giuseppe Corinaldesi
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
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Abedi M, Shafiee M, Afshari F, Mohammadi H, Ghasemi Y. Collagen-Based Medical Devices for Regenerative Medicine and Tissue Engineering. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04793-3. [PMID: 38133881 DOI: 10.1007/s12010-023-04793-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
Assisted reproductive technologies are key to solving the problems of aging and organ defects. Collagen is compatible with living tissues and has many different chemical properties; it has great potential for use in reproductive medicine and the engineering of reproductive tissues. It is a natural substance that has been used a lot in science and medicine. Collagen is a substance that can be obtained from many different animals. It can be made naturally or created using scientific methods. Using pure collagen has some drawbacks regarding its physical and chemical characteristics. Because of this, when collagen is processed in various ways, it can better meet the specific needs as a material for repairing tissues. In simpler terms, collagen can be used to help regenerate bones, cartilage, and skin. It can also be used in cardiovascular repair and other areas. There are different ways to process collagen, such as cross-linking it, making it more structured, adding minerals to it, or using it as a carrier for other substances. All of these methods help advance the field of tissue engineering. This review summarizes and discusses the current progress of collagen-based materials for reproductive medicine.
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Affiliation(s)
- Mehdi Abedi
- Pharmaceutical Science Research Center, Shiraz University of Medical Science, Shiraz, Iran.
- Research and Development Department, Danesh Salamat Kowsar Co., P.O. Box 7158186496, Shiraz, Iran.
| | - Mina Shafiee
- Research and Development Department, Danesh Salamat Kowsar Co., P.O. Box 7158186496, Shiraz, Iran
| | - Farideh Afshari
- Department of Tissue Engineering and Applied Cell Science, School of Advanced Medical Sciences and Technology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamidreza Mohammadi
- Research and Development Department, Danesh Salamat Kowsar Co., P.O. Box 7158186496, Shiraz, Iran
| | - Younes Ghasemi
- Pharmaceutical Science Research Center, Shiraz University of Medical Science, Shiraz, Iran
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Lim HC, Paeng KW, Jung UW, Benic GI. Vertical bone augmentation using collagenated or non-collagenated bone substitute materials with or without recombinant human bone morphogenetic protein-2 in a rabbit calvarial model. J Periodontal Implant Sci 2023; 53:429-443. [PMID: 37038830 PMCID: PMC10761281 DOI: 10.5051/jpis.2204240212] [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: 10/25/2022] [Revised: 01/01/2023] [Accepted: 01/17/2023] [Indexed: 03/18/2023] Open
Abstract
PURPOSE The aim of this study was to determine 1) the bone-regenerative effect of porcine bone block materials with or without collagen matrix incorporation, 2) the effect of a collagen barrier, and 3) the effect of adding recombinant human bone morphogenetic protein-2 (rhBMP-2) to the experimental groups. METHODS Four treatment modalities were applied to rabbit calvaria: 1) deproteinized bovine bone mineral blocks (DBBM), 2) porcine bone blocks with collagen matrix incorporation (PBC), 3) porcine bone blocks alone without collagen matrix incorporation (PB), and 4) PBC blocks covered by a collagen membrane (PBC+M). The experiments were repeated with the addition of rhBMP-2. The animals were sacrificed after either 2 or 12 weeks of healing. Micro-computed tomography (micro-CT), histologic, and histomorphometric analyses were performed. RESULTS Micro-CT indicated adequate volume stability in all block materials. Histologically, the addition of rhBMP-2 increased the amount of newly formed bone (NB) in all the blocks. At 2 weeks, minimal differences were noted among the NB of groups with or without rhBMP-2. At 12 weeks, the PBC+M group with rhBMP-2 presented the greatest NB (P<0.05 vs. the DBBM group with rhBMP-2), and the PBC and PB groups had greater NB than the DBBM group (P>0.05 without rhBMP-2, P<0.05 with rhBMP-2). CONCLUSIONS The addition of rhBMP-2 enhanced NB formation in vertical augmentation using bone blocks, and a collagen barrier may augment the effect of rhBMP-2.
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Affiliation(s)
- Hyun-Chang Lim
- Department of Periodontology, Kyung Hee University, College of Dentistry, Kyung Hee University Medical Center, Seoul, Korea
| | - Kyeong-Won Paeng
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea.
| | - Goran I Benic
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
- Institute for Research and Education in Dental Medicine, Lugano, Switzerland
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Limlawan P, Insin N, Marger L, Freudenreich M, Durual S, Vacharaksa A. 3D-printed TCP-HA scaffolds delivering MicroRNA-302a-3p improve bone regeneration in a mouse calvarial model. BDJ Open 2023; 9:50. [PMID: 38001073 PMCID: PMC10673873 DOI: 10.1038/s41405-023-00177-1] [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: 08/24/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 11/26/2023] Open
Abstract
OBJECTIVE To demonstrate hydroxyapatite nanoparticles modified with cationic functional molecules. 3-aminopropyltriethoxysilane (HA-NPs-APTES) carrying microRNA-302a-3p (miR) in the 3D-printed tricalcium phosphate/Hydroxyapatite (TCP/HA) scaffold can increase healing of the critical-sized bone defect. MATERIALS AND METHODS 3D-printed TCP/HA were modified with HA-NPs-APTES by two methods (M1, M2). The dispersion of particles was visualized by fluorescent microscopy. Biocompatibility of the scaffolds was tested by alizarin assay. Delivery of miR to the cells and osteogenic gene expression were evaluated by qPCR. After selecting best method (M2), scaffolds, scaffolds+HA-NPs-APTES with or without miR were implanted in 4 mm mouse calvarium defect (n = 4 per group). After 2,4 and 6 weeks, bone regeneration were evaluated by microCT and histology sections. RESULTS Both M1 and M2 scaffolds were biocompatible with cell adhesion on its surface. M2 scaffold showed significant increase of miR, suggesting successful delivery, resulted in downregulation of its target mRNA COUP-TFII, and upregulation of RUNX2 mRNA. Calvarium defect with M2 scaffold also showed significantly higher BV/TV and higher number of filled spaces at all time points. Histomorphometry demonstrated new bone formed at the center of the HA-NPs-APTES-miR scaffold earlier than controls. CONCLUSION TCP/HA scaffold modified with HA-NPs-APTES facilitated delivery of miR and enhanced bone regeneration.
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Affiliation(s)
- Pirawish Limlawan
- Department of Oral Medicine, Faculty of Dentistry, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
- Research Unit on Oral Microbiology and Immunology, Faculty of Dentistry, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - Numpon Insin
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - Laurine Marger
- Biomaterials Laboratory, Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, 1 Rue Michel Servet, 1204, Geneva, Switzerland
| | - Mélanie Freudenreich
- Biomaterials Laboratory, Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, 1 Rue Michel Servet, 1204, Geneva, Switzerland
| | - Stéphane Durual
- Biomaterials Laboratory, Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, 1 Rue Michel Servet, 1204, Geneva, Switzerland
| | - Anjalee Vacharaksa
- Research Unit on Oral Microbiology and Immunology, Faculty of Dentistry, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
- Department of Microbiology, Faculty of Dentistry, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
- Master of Science Program in Geriatric Dentistry and Special Patients Care, Faculty of Dentistry, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
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Stavropoulos A, Marcantonio CC, de Oliveira VXR, Marcantonio É, de Oliveira GJPL. Fresh-frozen allogeneic bone blocks grafts for alveolar ridge augmentation: Biological and clinical aspects. Periodontol 2000 2023; 93:139-152. [PMID: 38194350 DOI: 10.1111/prd.12543] [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: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 01/10/2024]
Abstract
The possibilities for oral bone regeneration procedures vary depending on the type of bone defect to be treated, which in turn dictate the type of graft to be used. Atrophic alveolar ridges are non-contained defects and pose a challenging defect morphology for bone regeneration/augmentation. Successful results are regularly obtained with the use of particulate grafts in combination with barrier membranes. In cases of very narrow ridges with need of larger amount of bone augmentation, block grafts are often used. Fresh-frozen allogeneic bone block grafts have been proposed as an alternative to autogenous (AT) bone blocks. Based on a systematic appraisal of pre-clinical in vivo studies and clinical trials including a direct comparison of fresh-frozen bone (FFB) blocks versus AT bone blocks it can be concluded that a FFB block graft: (a) cannot be considered as a reliable replacement of a AT bone block, and (b) should only be considered in cases where the amount of necessary augmentation-in a lateral direction-is relatively limited, so that the main portion of the body of the implant lies within the inner (i.e., the vital) aspect of the block.
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Affiliation(s)
- Andreas Stavropoulos
- Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden
- Division of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Camila Chierici Marcantonio
- Department of Diagnosis and Surgery School of Dentistry at Araraquara, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil
| | - Vithor Xavier Resende de Oliveira
- Department of Periodontology/Implantodontology, School of Dentistry, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Élcio Marcantonio
- Department of Diagnosis and Surgery School of Dentistry at Araraquara, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil
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Calciolari E, Corbella S, Gkranias N, Viganó M, Sculean A, Donos N. Efficacy of biomaterials for lateral bone augmentation performed with guided bone regeneration. A network meta-analysis. Periodontol 2000 2023; 93:77-106. [PMID: 37752820 DOI: 10.1111/prd.12531] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/28/2023]
Abstract
Bone regeneration is often required concomitant with implant placement to treat a bone fenestration, a dehiscence, and for contouring. This systematic review assessed the impact of different biomaterials employed for guided bone regeneration (GBR) simultaneous to implant placement on the stability of radiographic peri-implant bone levels at ≥12 months of follow-up (focused question 1), as well as on bone defect dimension (width/height) changes at re-assessment after ≥4 months (focused question 2). Only randomized controlled trials (RCTs) and controlled clinical trials (CCTs) that compared different biomaterials for GBR were considered. A Bayesian network meta-analysis (NMA) was performed using a random-effects model. A ranking probability between treatments was obtained, as well as an estimation of the surface under the cumulative ranking value (SUCRA). Overall, whenever the biological principle of GBR was followed, regeneration occurred in a predictable way, irrespective of the type of biomaterial used. A lower efficacy of GBR treatments was suggested for initially large defects, despite the trend did not reach statistical significance. Regardless of the biomaterial employed, a certain resorption of the augmented bone was observed overtime. While GBR was shown to be a safe and predictable treatment, several complications (including exposure, infection, and soft tissue dehiscence) were reported, which tend to be higher when using cross-linked collagen membranes.
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Affiliation(s)
- Elena Calciolari
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
- Dental School, Department of Medicine and Dentistry, Università di Parma, Parma, Italy
| | - Stefano Corbella
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, Italy
- IRCCS, Ospedale Galeazzi Sant'Ambrogio, Milan, Italy
| | - Nikolaos Gkranias
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Marco Viganó
- Medacta International SA, Castel San Pietro, Switzerland
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Nikolaos Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
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11
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Donos N, Akcali A, Padhye N, Sculean A, Calciolari E. Bone regeneration in implant dentistry: Which are the factors affecting the clinical outcome? Periodontol 2000 2023; 93:26-55. [PMID: 37615306 DOI: 10.1111/prd.12518] [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: 02/10/2023] [Revised: 07/08/2023] [Accepted: 08/01/2023] [Indexed: 08/25/2023]
Abstract
The key factors that are needed for bone regeneration to take place include cells (osteoprogenitor and immune-inflammatory cells), a scaffold (blood clot) that facilitates the deposition of the bone matrix, signaling molecules, blood supply, and mechanical stability. However, even when these principles are met, the overall amount of regenerated bone, its stability over time and the incidence of complications may significantly vary. This manuscript provides a critical review on the main local and systemic factors that may have an impact on bone regeneration, trying to focus, whenever possible, on bone regeneration simultaneous to implant placement to treat bone dehiscence/fenestration defects or for bone contouring. In the future, it is likely that bone tissue engineering will change our approach to bone regeneration in implant dentistry by replacing the current biomaterials with osteoinductive scaffolds combined with cells and mechanical/soluble factors and by employing immunomodulatory materials that can both modulate the immune response and control other bone regeneration processes such as osteogenesis, osteoclastogenesis, or inflammation. However, there are currently important knowledge gaps on the biology of osseous formation and on the factors that can influence it that require further investigation. It is recommended that future studies should combine traditional clinical and radiographic assessments with non-invasive imaging and with patient-reported outcome measures. We also envisage that the integration of multi-omics approaches will help uncover the mechanisms responsible for the variability in regenerative outcomes observed in clinical practice.
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Affiliation(s)
- Nikolaos Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Aliye Akcali
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
- Department of Periodontology, Faculty of Dentistry, Dokuz Eylul University, Izmir, Turkey
| | - Ninad Padhye
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Elena Calciolari
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
- Department of Medicine and Dentistry, Dental School, University of Parma, Parma, Italy
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12
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Christensen JG, Grønlund GP, Georgi SR, Starch-Jensen T, Bruun NH, Jensen SS. Horizontal Alveolar Ridge Augmentation with Xenogenic Block Grafts Compared with Autogenous Bone Block Grafts for Implant-retained Rehabilitation: a Systematic Review and Meta-Analysis. J Oral Maxillofac Res 2023; 14:e1. [PMID: 37521322 PMCID: PMC10382196 DOI: 10.5037/jomr.2023.14201] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 06/29/2023] [Indexed: 08/01/2023]
Abstract
Objectives The objective of the present systematic review and meta-analysis was to test the 0-hypothesis of no difference in implant treatment outcome after horizontal alveolar ridge augmentation with xenogenic block compared with autogenous bone block. Material and Methods A literature search was conducted using PubMed, Embase and Cochrane Library databases in combination with a hand-search of relevant journals until 25th of January 2022. Comparative and non-comparative studies evaluating horizontal alveolar ridge augmentations with xenogenic blocks were included. Quality and risk of bias were evaluated by Cochrane Collaboration's revised tool and Newcastle-Ottawa scale. Results Meta-analysis revealed no statistically significant difference in implant survival rate after more than 6 months of functional implant loading (P = 0.71), no difference in alveolar ridge width (P = 0.07) or gain of alveolar ridge width at re-entry (P = 0.13). Non-comparative studies revealed moderate to high short-term implant survival rate and gain in alveolar ridge width, however, complications including dehiscences, graft exposure and graft failure were observed in several studies. Conclusions No significant difference could be identified in short-term implant treatment outcome following horizontal alveolar ridge augmentation using xenogenic block compared with autogenous bone block with the limited data available. A high incidence of healing complications and implant failures necessitates further investigation, as well as long-term results on implant survival rate.
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Affiliation(s)
- Jeppe Gronemann Christensen
- Research Area Oral Surgery, Section for Oral Biology and Immunopathology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, CopenhagenDenmark.
- All authors contributed equally to the present study.
| | - Gustav Pors Grønlund
- Research Area Oral Surgery, Section for Oral Biology and Immunopathology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, CopenhagenDenmark.
- All authors contributed equally to the present study.
| | - Signe Risom Georgi
- Research Area Oral Surgery, Section for Oral Biology and Immunopathology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, CopenhagenDenmark.
- All authors contributed equally to the present study.
| | - Thomas Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg, Denmark.
| | - Niels Henrik Bruun
- Unit of Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark.
| | - Simon Storgård Jensen
- Research Area Oral Surgery, Section for Oral Biology and Immunopathology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, CopenhagenDenmark.
- Department of Oral and Maxillofacial Surgery, Copenhagen University Hospital, Copenhagen, Denmark.
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13
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Quirynen M, Lahoud P, Teughels W, Cortellini S, Dhondt R, Jacobs R, Temmerman A. Individual "alveolar phenotype" limits dimensions of lateral bone augmentation. J Clin Periodontol 2023; 50:500-510. [PMID: 36574768 DOI: 10.1111/jcpe.13764] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/29/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
AIM Alveolar ridge resorption following tooth extraction often renders a lateral bone augmentation inevitable. Some patients, however, suffer from severe early (during graft healing, Eres ) and/or late (during follow-up, Lres ) graft resorption. We explored the hypothesis that the "individual phenotypic dimensions" may partially explain the degree of such resorptions. MATERIALS AND METHODS Patients who underwent a guided bone regeneration (GBR) procedure were screened for inclusion according to the following criteria: (1) a relatively symmetrical maxillary arch; (2) an intact contra-lateral alveolar bone dimension; (3) the availability of a pre-operative cone-beam CT (CBCT); (4) a CBCT taken immediately after GBR, and (5) at least one CBCT scan ≥6 months after surgery. CBCT scans from different timepoints were registered and imported into the Mimics software (Materialise, Leuven, Belgium). Bone dimensions of the contra-lateral site of the augmentation, representing the "individual phenotypical dimension (IPD) of the alveolar crest", were superimposed on the augmented site and registered accordingly. As such, Eres and Lres could be measured over time, in relation to the IPD (in two dimensions; per millimetre apically from the alveolar crest, in the centre of the GBR), as well as in three dimensions (the entire GBR, 2 mm away from the mesial, distal, and apical border for standardization). RESULTS A total of 17 patients (23 augmented sites) were included. After Eres , the outline of the augmentation was in general located ±1 mm outside the IPD, but ≥1.5 years after GBR, it further moved towards the IPD (85% within 0.5 mm distance). CONCLUSIONS Within the limitations of this study, the results indicate that the dimensions of a lateral bone augmentation are defined by the "individual phenotypic bone boundaries" of the patient.
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Affiliation(s)
- Marc Quirynen
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
| | - Pierre Lahoud
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
- Department of Oral and Maxillofacial Surgery and Department of Imaging and Pathology, UZ Leuven, OMFS-IMPATH Research Group, KU Leuven, Leuven, Belgium
| | - Wim Teughels
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
| | - Simone Cortellini
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
| | - Rutger Dhondt
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
| | - Reinhilde Jacobs
- Department of Oral and Maxillofacial Surgery and Department of Imaging and Pathology, UZ Leuven, OMFS-IMPATH Research Group, KU Leuven, Leuven, Belgium
- Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Andy Temmerman
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
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14
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Qian SJ, Pu YP, Zhang XM, Wu XY, Liu BL, Lai HC, Shi JY. Clinical, radiographic, and esthetic evaluation of immediate implant placement with buccal bone dehiscence in the anterior maxilla: A 1-year prospective case series. Clin Implant Dent Relat Res 2023; 25:3-10. [PMID: 36373737 DOI: 10.1111/cid.13154] [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: 04/30/2022] [Revised: 09/28/2022] [Accepted: 11/01/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To evaluate the clinical, radiographic, and esthetic outcomes of immediate implant placement with buccal bone dehiscence in the anterior maxilla. METHODS In this case series, implants were inserted immediately after tooth extraction in sockets with buccal bone dehiscence. Guided bone regeneration (GBR) with a papilla preservation flap and simultaneous connective tissue grafting (CTG) was used. The following outcome variables were measured: mid-facial mucosal recession, probing depth, bleeding on probing, Pink Esthetic Score (PES), marginal bone loss, and thickness of buccal bone plate (TBP). RESULTS 12 patients were recruited. Stable mid-facial mucosal level (-0.03 ± 0.17 mm) and excellent soft-tissue esthetic outcomes (PES, 9.17 ± 0.72) were achieved at 1 year. The TBP at platform level was 2.01 ± 0.31 mm at 1-year follow up with a resorption rate of 28.90% ± 15.14%. CONCLUSIONS Immediate implant placement using GBR performed with a papilla preservation approach and simultaneous CTG is a feasible treatment procedure in compromised extraction sockets in the anterior region. Favorable esthetic outcomes and buccal bone thickness were obtained. Further studies were needed to evaluate the long-term tissue alteration.
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Affiliation(s)
- Shu-Jiao Qian
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Yi-Ping Pu
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Meng Zhang
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Xin-Yu Wu
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Bei-Lei Liu
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Hong-Chang Lai
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Jun-Yu Shi
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
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15
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Song YW, Bienz SP, Benic GI, Cha JK, Hämmerle CHF, Jung UW, Jung RE. Soft-tissue dimensional change following guided bone regeneration on peri-implant defects using soft-type block or particulate bone substitutes: 1-year outcomes of a randomized controlled clinical trial. J Clin Periodontol 2023; 50:147-157. [PMID: 36330670 DOI: 10.1111/jcpe.13738] [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: 05/26/2022] [Revised: 09/19/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
AIM To compare the peri-implant soft-tissue dimensional changes following guided bone regeneration between particulate (particle group) and collagenated soft-block-type (block group) biphasic calcium phosphate (BCP). MATERIALS AND METHODS This study investigated 35 subjects: 18 in the particle group and 17 in the block group. Cone-beam computed tomography obtained at 6 months post surgery and optical impressions taken periodically (before surgery, 6 months post surgery, and 1 year post surgery) were superimposed. The ridge contour changes over time and the peri-implant mucosal thicknesses were measured diagonally and horizontally, and analysed statistically. RESULTS The increases in diagonal (1.12 ± 0.78 mm) and horizontal (2.79 ± 1.90 mm) ridge contour of the block group were significantly higher than those in the particle group during the first 6 months (p < .05); however, the contour hardly changed thereafter (diagonal: 0.07 ± 0.75 mm; horizontal: -0.34 ± 1.26 mm), resulting in the 1-year contour changes similar between the two groups. Regardless of the type of BCP, the ridge contour increased significantly over 1 year when the dehiscence defect had a contained configuration (p < .05). CONCLUSIONS The increase in soft-tissue dimensions for 1 year was similar between the two groups. The mucosal contour increase was larger when the surgery was conducted in a more contained defect, and this was not influenced by the type of BCP.
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Affiliation(s)
- Young Woo Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Stefan P Bienz
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland
| | - Goran I Benic
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland.,Institute for Research and Education in Dental Medicine, Lugano, Switzerland
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Christoph H F Hämmerle
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ronald E Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland
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16
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Kusirisin T, Suwanprateeb J, Buranawat B. Polycaprolactone versus collagen membrane and 1‐year clinical outcomes: A randomized controlled trial. Clin Implant Dent Relat Res 2022; 25:330-342. [PMID: 36519395 DOI: 10.1111/cid.13166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Polycaprolactone (PCL) is a synthetic aliphatic polyester widely used in biomedical applications with biodegradability in the body and promotes cell proliferation and differentiation. A newly developed bilayered PCL membrane was developed for possibly being used as a membrane in guided bone regeneration (GBR). PURPOSE To compare the clinical efficacy between a newly developed bilayered PCL membrane with a Cytoplast™ RTM collagen membrane for GBR with simultaneous implant placement. MATERIALS AND METHODS Twenty-four patients were randomized to PCL or RTM group, and a total of 24 dental implants were placed. Primary outcomes were patient mean buccal bone thickness (BBT) immediately postimplantation and at 6 months using cone-beam CT and soft tissue surface dimensional changes (STC) at crown insertion, 6 months, and 1 year after loading using intraoral scanner. Secondary outcomes included success rate, clinical parameters, healing index, implant stability, pink esthetic score, and marginal bone levels. RESULTS The percentage of reduced BBT at 6 months was 32.38%, 25.94%, and 23.96% in the test group and 34.42%, 14.75%, and 6.34% in the control group at the corresponding levels. The mean difference of changed BBT associated with PCL membrane, when compared to collagen membrane, at 6 months was -0.02 ± 0.18 mm (95% confidence interval [CI]: -0.40 to 0.35), 0.29 ± 0.28 mm (95% CI: -0.29 to 0.87), and 0.62 ± 0.38 mm (95% CI: -0.17 to 1.42) at 0, 2, and 4 mm from implant shoulder. Minimal loss of STC was observed in both groups up to 1 year of loading. The mean difference loss of surface dimensional change associated with PCL membrane, when compared to collagen membrane, at 1 year of loading was 0.31 ± 0.19 mm (95% CI: -0.07 to 0.70), 0.22 ± 0.26 mm (95% CI: -0.33 to 0.76), and 0.17 ± 0.30 mm (95% CI: -0.45 to 0.78) at 0, 2, and 4 mm from implant shoulder. None of these differences were statistically significant (unpaired t-test, degrees of freedom [df] = 22; p > 0.05). CONCLUSION Within the limits of this trial, both barrier membranes resulted in comparable outcomes for GBR with implant placement after 1 year in function. Further research is necessary with a larger sample size.
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Affiliation(s)
- Thun Kusirisin
- Department of Implantology, Faculty of Dentistry Thammasat University Pathum Thani Thailand
| | - Jintamai Suwanprateeb
- Biofunctional Materials and Devices Research Group, National Metal and Materials Technology Center National Science and Technology Development Agency Pathum Thani Thailand
| | - Borvornwut Buranawat
- Department of Implantology, Faculty of Dentistry Thammasat University Pathum Thani Thailand
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17
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Park JY, Song YW, Ko KA, Strauss FJ, Thoma DS, Lee JS. Effect of collagen membrane fixation on ridge volume stability and new bone formation following guided bone regeneration. J Clin Periodontol 2022; 49:684-693. [PMID: 35634678 DOI: 10.1111/jcpe.13665] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/05/2022] [Accepted: 05/13/2022] [Indexed: 11/25/2022]
Abstract
AIM To test the effect of membrane fixation on ridge volume stability and new bone formation using guided bone regeneration. MATERIALS AND METHODS In eight beagle dogs, after bilateral extraction of the maxillary pre-molars, a box-shaped defect was created on each side. All defect sites were augmented with a particulate bone substitute material, covered with either one of two non-cross-linked collagen membranes (CM1 or CM2) with or without fixation (-F or -UF). Samples were collected after 8 weeks. Histomorphometric and micro-computed tomography analyses were performed. RESULTS Membrane fixation made no significant difference to the total augmented volume for both membranes (p > .05). Histological data indicated that at the ridge crest the augmented tissue width amounted to 2.4 ± 0.4 mm in the group CM1-F and 2.4 ± 0.5 mm in the group CM1-UF, with no significant difference between the groups. Conversely, in CM2-F the augmented tissue width was significantly larger than in CM2-UF (2.3 ± 0.1 vs. 1.57 ± 0.27, p < .05). CONCLUSIONS Membrane fixation in contained defects failed to improve ridge volume stability regardless of the membrane type. However, it may enhance the width of the augmented ridge at the coronal portion depending on the type of membrane.
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Affiliation(s)
- Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea.,Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Republic of Korea
| | - Young Woo Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea.,Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Kyung-A Ko
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea.,Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Republic of Korea
| | - Franz-Josef Strauss
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland.,Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile.,Department of Oral Biology, Medical University of Vienna, Vienna, Austria
| | - Daniel Stefan Thoma
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea.,Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Republic of Korea.,Department of Oral Biology, Medical University of Vienna, Vienna, Austria
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18
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Yang Z, Wu C, Shi H, Luo X, Sun H, Wang Q, Zhang D. Advances in Barrier Membranes for Guided Bone Regeneration Techniques. Front Bioeng Biotechnol 2022; 10:921576. [PMID: 35814003 PMCID: PMC9257033 DOI: 10.3389/fbioe.2022.921576] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Guided bone regeneration (GBR) is a widely used technique for alveolar bone augmentation. Among all the principal elements, barrier membrane is recognized as the key to the success of GBR. Ideal barrier membrane should have satisfactory biological and mechanical properties. According to their composition, barrier membranes can be divided into polymer membranes and non-polymer membranes. Polymer barrier membranes have become a research hotspot not only because they can control the physical and chemical characteristics of the membranes by regulating the synthesis conditions but also because their prices are relatively low. Still now the bone augment effect of barrier membrane used in clinical practice is more dependent on the body’s own growth potential and the osteogenic effect is difficult to predict. Therefore, scholars have carried out many researches to explore new barrier membranes in order to improve the success rate of bone enhancement. The aim of this study is to collect and compare recent studies on optimizing barrier membranes. The characteristics and research progress of different types of barrier membranes were also discussed in detail.
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Affiliation(s)
- Ze Yang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Chang Wu
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Huixin Shi
- Department of Plastic Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xinyu Luo
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Hui Sun
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Qiang Wang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
- *Correspondence: Qiang Wang, ; Dan Zhang,
| | - Dan Zhang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
- *Correspondence: Qiang Wang, ; Dan Zhang,
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19
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Lee JH, Jung EH, Jeong SN. Profilometric, volumetric, and esthetic analysis of guided bone regeneration with L-shaped collagenated bone substitute and connective tissue graft in the maxillary esthetic zone: A case series with 1-year observational study. Clin Implant Dent Relat Res 2022; 24:655-663. [PMID: 35714206 DOI: 10.1111/cid.13116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/26/2022] [Accepted: 05/30/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE The aim of this study was to evaluate 1-year stability and maintenance of peri-implant soft and hard tissues after guided bone regeneration (GBR) with L-shaped collagenated bone substitute and subepithelial connective tissue graft (CTG) in the maxillary anterior region using profilometric, volumetric, and esthetic analyses. METHODS Fourteen peri-implant defects were grafted with L-shaped collagenated bone substitute, and 5 months after implant placement with GBR, reentry surgery in combination with CTG was performed in all participants. CBCT scans and STL files were acquired at baseline (after implant surgery, T1), reentry surgery (T2), and 1-year follow-up (T3). The profilometric and volumetric changes of the peri-implant tissues were measured, and the pink esthetic score (PES) was assessed at T3. RESULTS One year after GBR and CTG at the buccal aspect of the maxillary esthetic zone, the mean thickness of the hard tissue (HT) decreased (HT0: -0.87 ± 0.67 mm, HT1: -0.74 ± 0.75 mm, HT2: -0.92 ± 0.48 mm, 45-HT: -0.87 ± 0.73 mm) and the corresponding thickness of the soft tissue (ST) increased (ST0: 0.96 ± 1.06 mm, ST1: 0.85 ± 0.95 mm, ST2: 0.38 ± 0.82 mm, 45-ST: 0.12 ± 0.62 mm), and as a result, there was no statistically significant difference in the total tissue thickness between T1 and T3 (p < 0.05). The mean volumetric changes of the peri-implant tissues increased after 1-year of implant surgery (T1-T2: 1.52 ± 0.83 mm, T2-T3: -0.88 ± 1.04 mm, T1-T3: 0.64 ± 0.90 mm), and a statistically significant difference was shown in all compared time periods (p < 0.05). The mean PES score was 8.07 ± 1.54 at T3 (range, 6-10). CONCLUSION Within the limitations of this 1-year follow-up study, GBR with an L-shaped collagenated bone substitute and subepithelial CTG in the maxillary esthetic zone was beneficial for stable and maintainable peri-implant hard and soft tissues.
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Affiliation(s)
- Jae-Hong Lee
- Department of Periodontology, Daejeon Dental Hospital, Institute of Wonkwang Dental Research, Wonkwang University College of Dentistry, Daejeon, South Korea
| | - Eun-Hee Jung
- Department of Periodontology, Daejeon Dental Hospital, Institute of Wonkwang Dental Research, Wonkwang University College of Dentistry, Daejeon, South Korea
| | - Seong-Nyum Jeong
- Department of Periodontology, Daejeon Dental Hospital, Institute of Wonkwang Dental Research, Wonkwang University College of Dentistry, Daejeon, South Korea
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20
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Benic GI, Bienz SP, Song YW, Cha JK, Hämmerle CHF, Jung UW, Jung RE. Randomized controlled clinical trial comparing guided bone regeneration of peri-implant defects with soft-type block versus particulate bone substitutes: Six-month results of hard-tissue changes. J Clin Periodontol 2022; 49:480-495. [PMID: 35191065 DOI: 10.1111/jcpe.13606] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/25/2021] [Accepted: 02/04/2022] [Indexed: 11/27/2022]
Abstract
AIM To test whether soft-type block bone substitute used for guided bone regeneration (GBR) of peri-implant defects leads to a different dimension of the augmented hard tissue than particulate bone substitute. MATERIALS AND METHODS In 40 patients, 40 two-piece dental implants were placed >2 months after tooth extraction. Following random allocation, 20 peri-implant bone dehiscences were grafted with a soft-type block made of synthetic biphasic calcium phosphate (BCP) + collagen and 20 bone dehiscences with particulate BCP. All the sites were covered with a collagen membrane stabilized with titanium pins. Immediately after wound closure and after 6 months, the horizontal dimension (HD) of the augmented hard tissue was measured at the level of implant shoulder using cone beam computed tomography. During re-entry at 6 months, the defect fill was clinically assessed. RESULTS At 6 months, the median HD measured 1.15 mm (mean: 1.31 mm) in the soft-block group and 0.93 mm (mean: 1.05 mm) in the particulate group (p = .6). At 6 months, 7.1% of contained defects and 61.9% of non-contained defects showed an incomplete vertical defect fill. CONCLUSIONS Soft-type block of BCP + collagen used for GBR of peri-implant defects did not differ from particulate BCP regarding the dimension of the augmented hard tissue after 6 months of healing.
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Affiliation(s)
- Goran I Benic
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Stefan P Bienz
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Young Woo Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea.,Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Christoph H F Hämmerle
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ronald E Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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21
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Severi M, Simonelli A, Farina R, Tu YK, Lan CH, Shih MC, Trombelli L. Effect of lateral bone augmentation procedures in correcting peri-implant bone dehiscence and fenestration defects: A systematic review and network meta-analysis. Clin Implant Dent Relat Res 2022; 24:251-264. [PMID: 35316573 PMCID: PMC9315147 DOI: 10.1111/cid.13078] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 12/15/2022]
Abstract
Purpose The aim of the present systematic review was to evaluate the effect of different lateral bone augmentation (LBA) procedures on the complete correction of a peri‐implant bone dehiscence (BD) or fenestration (BF) from implant placement to implant surgical uncovering. Methods Electronic (Medline, Scopus, and Cochrane databases) and hand literature searches were performed for studies including at least one treatment arm where any LBA had been applied to correct a BD/BF at implant placement (T0). Studies where BD/BF was left untreated were also retrieved as negative control. Data from 24 selected articles were used to perform a network meta‐analysis. Based on the proportion of nonresolved BD/BF at implant surgical uncovering (T1), a hierarchy of LBA procedures, and was determined. Spontaneous healing (i.e., exposed implant surface covered by a full‐thickness flap; SELF) was also included in the hierarchy. Resorbable membrane + bone graft (RM + BG) was used as reference group. An analysis on the effect of nonhuman (NHBS) vs human (HBS) derived bone substitutes was also performed. NHBS was used as the reference group. Results No statistically significant differences were found among treatments for the proportion of nonresolved BD/BF. SELF performed substantially worse compared to RM + BG (OR: 5.78 × 10, CI: 4.83 × 10 – 1.3 × 1086). Treatment based on a combination of a graft material and membrane/periosteum appeared to perform slightly better than treatments using graft material or membrane alone. NHBS appeared to perform better than HBS. SELF had the worst effect among all treatments for both BD/BF height reduction (BDH) and BD/BF width reduction (BDW). Nonresorbable membrane (NRM) and patient's own periosteum (PERI) + BG showed greater increases in buccal bone thickness than RM + BG. Conclusion Reconstructive treatment (including use of graft alone, membrane alone, or combinations of grafts and either membrane or patient's own periosteum) of a BD/BF at implant placement favorably and significantly impacts on the probability to obtain complete correction of the BD/BF at implant uncovering when compared to full‐thickness flap repositioning on the BD/BF. When using a bone substitute, a nonhuman derived one may be suggested.
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Affiliation(s)
- Mattia Severi
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Ferrara
| | - Anna Simonelli
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Ferrara.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale, Ferrara
| | - Roberto Farina
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Ferrara.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale, Ferrara
| | - Yu-Kang Tu
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Cheng-Hsiang Lan
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Ming-Chieh Shih
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Leonardo Trombelli
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Ferrara.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale, Ferrara
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22
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Bouckaert E, De Bruyckere T, Eghbali A, Younes F, Wessels R, Cosyn J. A randomized controlled trial comparing guided bone regeneration to connective tissue graft to re‐establish buccal convexity at dental implant sites: three‐year results. Clin Oral Implants Res 2022; 33:461-471. [DOI: 10.1111/clr.13906] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 12/05/2021] [Accepted: 12/27/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Eline Bouckaert
- Ghent University Faculty of Medicine and Health Sciences Oral Health Sciences Department of Periodontology and Oral Implantology Corneel Heymanslaan 10 B‐9000 Ghent Belgium
| | - Thomas De Bruyckere
- Ghent University Faculty of Medicine and Health Sciences Oral Health Sciences Department of Periodontology and Oral Implantology Corneel Heymanslaan 10 B‐9000 Ghent Belgium
| | - Aryan Eghbali
- Ghent University Faculty of Medicine and Health Sciences Oral Health Sciences Department of Periodontology and Oral Implantology Corneel Heymanslaan 10 B‐9000 Ghent Belgium
- Vrije Universiteit Brussel (VUB) Faculty of Medicine and Pharmacy Oral Health Research Group (ORHE) Laarbeeklaan 103 B‐1090 Brussels Belgium
| | - Faris Younes
- Ghent University Faculty of Medicine and Health Sciences Oral Health Sciences Department of Periodontology and Oral Implantology Corneel Heymanslaan 10 B‐9000 Ghent Belgium
| | - Retief Wessels
- Ghent University Faculty of Medicine and Health Sciences Oral Health Sciences Department of Periodontology and Oral Implantology Corneel Heymanslaan 10 B‐9000 Ghent Belgium
| | - Jan Cosyn
- Ghent University Faculty of Medicine and Health Sciences Oral Health Sciences Department of Periodontology and Oral Implantology Corneel Heymanslaan 10 B‐9000 Ghent Belgium
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23
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Paeng KW, Cha JK, Thoma DS, Jung RE, Jung UW, Benic GI. The effect of collagen membrane and of bone substitute on lateral bone augmentation with titanium mesh: An experimental in vivo study. Clin Oral Implants Res 2022; 33:413-423. [PMID: 35137448 DOI: 10.1111/clr.13901] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 12/20/2021] [Accepted: 02/02/2022] [Indexed: 11/03/2022]
Abstract
AIM The aim of this study was to identify the additional effects of collagen membrane (CM) and of synthetic bone substitute (BS) on lateral bone augmentation of chronic peri-implant defect with titanium mesh (TM). MATERIALS AND METHODS Atrophic alveolar ridge was induced in 6 canine mandibles and 5 peri-implant defects were achieved in each hemi-mandible. Bone augmentation was attempted using the following randomly allocated modalities: 1) Control: no treatment, 2) TM only group: blood clot covered by TM, 3) TM+BS group: BS covered by TM, 4) TM+CM group: blood clot covered by TM and CM, and 5) TM+BS+CM group: BS covered by TM and CM. After 16 weeks of submerged healing, micro-CT and histomorphometric analyses were performed. RESULTS TM exposure occurred in one case in the TM only group, one case in the TM+CM group, and two cases in the TM+BS+CM group. Histologically, pseudo-periosteum was observed along the inner and outer surfaces of TM, and the directions of the collagen fiber within the pseudo-periosteum differed according to the additional use of CM. In general, the TM only group rendered higher values in vertical defect fill and dimension of the augmented hard tissue in comparison to the other treatment groups. CONCLUSIONS Due to the small sample size, this pilot study remains inconclusive. Within the limitations of the study, the use of CM and/or BS did not appear to have an additional benefit on lateral bone augmentation of peri-implant defect with TM.
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Affiliation(s)
- Kyeong-Won Paeng
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Daniel S Thoma
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea.,Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Ronald E Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Goran I Benic
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.,Institute for Research and Education in Dental Medicine, Lugano, Switzerland
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24
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An YZ, Strauss FJ, Park JY, Shen YQ, Thoma DS, Lee JS. Membrane fixation enhances guided bone regeneration in standardized calvarial defects: A pre-clinical study. J Clin Periodontol 2022; 49:177-187. [PMID: 34866208 DOI: 10.1111/jcpe.13583] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/09/2021] [Accepted: 11/23/2021] [Indexed: 12/21/2022]
Abstract
AIM To determine whether collagen membrane (CM) fixation enhances guided bone regeneration in standardized defects. MATERIALS AND METHODS Four 8-mm-diameter defects were surgically made in eight rabbit calvaria, and randomly allocated into four groups: control (empty), unfixed-CM, fixed-CM, and unfixed-CM with bone graft (BG + CM) (positive control). After 1- and 4-week healing periods, the animals were sacrificed and quantitative reverse transcription polymerase chain reaction, micro-computed tomography, and histological outcomes were assessed. RESULTS At week 1, the expression levels of BMP-2, FGF-2, VEGF, and osteocalcin were significantly higher in the fixed-CM group than in the unfixed-CM and control groups (p < .05). Conversely, cathepsin-K was significantly expressed in the unfixed-CM group. No significant differences in expression markers were observed between the fixed-CM and BG + CM groups (p > .05). At week 4, new bone formation was significantly higher in the fixed-CM group than the unfixed-CM and control groups (p < .05), but similar to the BG + CM group (p > .05). CONCLUSIONS CM fixation enhances the expression of osteogenic factors similar to BG + CM, leading to significantly more new bone formation. This suggests that the osteogenic potential is greater when membranes are fixed, thereby limiting the necessity of membrane-supporting materials to enhance bone formation.
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Affiliation(s)
- Yin-Zhe An
- Department of Periodontology, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Franz-Josef Strauss
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile
- Department of Oral Biology, Medical University of Vienna, Vienna, Austria
| | - Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Republic of Korea
| | - Yu Qin Shen
- Department of Periodontology, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Daniel Stefan Thoma
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| | - Jung-Seok Lee
- Department of Oral Biology, Medical University of Vienna, Vienna, Austria
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Republic of Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Republic of Korea
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25
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Shuai H, Xiaoni Z, Yan L, Yanle L, Yan D, Lu M, Yingliang S, Wei M. Fabrication method for a magnetically induced highly oriented nanohydroxyapatite/collagen composite. J Appl Biomater Funct Mater 2022; 20:22808000221105727. [PMID: 35787019 DOI: 10.1177/22808000221105727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Both collagen fibres and nanohydroxyapatite crystals have anisotropic magnetisation, which allows them to be oriented by a high magnetic field. Highly oriented nanohydroxyapatite/collagen composites were prepared using a high magnetic field combined with in situ synthesis. These highly oriented composites were investigated and compared with conventional composites. The results showed that the collagen fibres in the magnetically induced highly oriented nanohydroxyapatite/collagen composites had a preferred orientation and smaller molecular spacing, while the nanohydroxyapatite crystals were tightly adhered along the collagen fibre surface. The magnetically induced composites exhibited superior resistance to swelling and degradation along with high compressive strength. This artificial composite, with a structure and composition similar to natural bone, represents a new idea for improving materials for vertical or horizontal bone augmentation.
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Affiliation(s)
- Huang Shuai
- State Key Laboratory of Military Stomatology & National, Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Implant Dentistry & School of Stomatology, The Fourth Military Medical University, Xi' an, China
| | - Zhou Xiaoni
- State Key Laboratory of Military Stomatology & National, Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Implant Dentistry & School of Stomatology, The Fourth Military Medical University, Xi' an, China
| | - Liu Yan
- State Key Laboratory of Military Stomatology & National, Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Implant Dentistry & School of Stomatology, The Fourth Military Medical University, Xi' an, China
| | - Liu Yanle
- State Key Laboratory of Military Stomatology & National, Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Implant Dentistry & School of Stomatology, The Fourth Military Medical University, Xi' an, China
| | - Duan Yan
- State Key Laboratory of Military Stomatology & National, Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Implant Dentistry & School of Stomatology, The Fourth Military Medical University, Xi' an, China
| | - Meng Lu
- Sannie Bioengineering Technology Co., Ltd., Tianjin, China
| | - Song Yingliang
- State Key Laboratory of Military Stomatology & National, Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Implant Dentistry & School of Stomatology, The Fourth Military Medical University, Xi' an, China
| | - Ma Wei
- State Key Laboratory of Military Stomatology & National, Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Implant Dentistry & School of Stomatology, The Fourth Military Medical University, Xi' an, China
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26
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Bone Regeneration of a 3D-Printed Alloplastic and Particulate Xenogenic Graft with rhBMP-2. Int J Mol Sci 2021; 22:ijms222212518. [PMID: 34830400 PMCID: PMC8624569 DOI: 10.3390/ijms222212518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/14/2021] [Accepted: 11/18/2021] [Indexed: 02/05/2023] Open
Abstract
This study aimed to evaluate the bone regeneration capacity of a customized alloplastic material and xenograft with recombinant human bone morphogenetic protein-2 (rhBMP-2). We prepared hydroxyapatite (HA)/tricalcium phosphate (TCP) pure ceramic bone blocks made using a 3D printing system and added rhBMP-2 to both materials. In eight beagle dogs, a total of 32 defects were created on the lower jaws. The defective sites of the negative control group were left untreated (N group; 8 defects), and those in the positive control group were filled with particle-type Bio-Oss (P group; 12 defects). The defect sites in the experimental group were filled with 3D-printed synthetic bone blocks (3D group; 12 defects). Radiographic and histological evaluations were performed after healing periods of 6 and 12 weeks and showed no significant difference in new bone formation and total bone between the P and 3D groups. The 3D-printed custom HA/TCP graft with rhBMP-2 showed bone regeneration effects similar to that of particulate Bio-Oss with rhBMP-2. Through further study and development, the application of 3D-printed customized alloplastic grafts will be extended to various fields of bone regeneration.
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27
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Lee JH, Jung EH, Jeong SN. Augmentation Stability of Guided Bone Regeneration for Peri-Implant Dehiscence Defects with L-shaped Porcine-Derived Block Bone Substitute. MATERIALS 2021; 14:ma14216580. [PMID: 34772106 PMCID: PMC8585415 DOI: 10.3390/ma14216580] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 12/13/2022]
Abstract
Block bone substitutes have better augmentation stability for guided bone regeneration (GBR) than particulate bone substitutes. This study sought to determine whether GBR with an L-shaped porcine block bone (DPBM-C) differs from GBR with an L-shaped bovine block bone (DBBM-C) based on clinical, radiographic, and volumetric outcomes for peri-implant dehiscence defects. A total of 42 peri-implant defects were grafted with 20 L-shaped DPBM-C and 22 DBBM-C groups. The horizontal and vertical thicknesses of the augmented hard tissue were measured using sagittal cone-beam computed tomography, and the volumetric tissue change was evaluated by stereolithography image superimposition. Postoperative discomfort, early wound healing outcomes, and implant stability were also assessed. Among the clinical (subjective pain and swelling, wound dehiscence, membrane exposure, and periotest values), radiographic (changes in horizontal and vertical hard tissue thickness), and volumetric parameters of the L-shaped DPBM-C and DBBM-C groups during the healing period, only the periotest values showed a statistically significant difference (0.67 ± 1.19, p = 0.042). Within the limitations of this study, an L-shaped DPBM-C is not inferior to an L-shaped DBBM-C based on their clinical, radiographic, and volumetric outcomes for GBR of peri-implant dehiscence defects.
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Affiliation(s)
- Jae-Hong Lee
- Correspondence: ; Tel.: +82-42-366-1114; Fax: +82-42-366-1115
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28
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Lateral Ridge Augmentation with Guided Bone Regeneration Using Particulate Bone Substitutes and Injectable Platelet-Rich Fibrin in a Digital Workflow: 6 Month Results of a Prospective Cohort Study Based on Cone-Beam Computed Tomography Data. MATERIALS 2021; 14:ma14216430. [PMID: 34771956 PMCID: PMC8585468 DOI: 10.3390/ma14216430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/15/2021] [Accepted: 10/21/2021] [Indexed: 02/05/2023]
Abstract
This study aimed to test whether or not a digital workflow for GBR with particulate bone substitutes and injectable platelet-rich fibrin improved the thickness of the hard tissue compared to the conventional workflow. 26 patients in need of lateral bone augmentation were enrolled. GBR with particulate bone substitutes and injectable platelet-rich fibrin was performed in all patients. Patients were divided into two groups: control (conventional workflow; n = 14) and test (digital workflow; n = 12). CBCT scans were performed before surgery, immediately after wound closure, and 6 months post-surgery, and the labial thickness of the hard tissue (LT) was assessed at 0–5 mm apical to the implant shoulder (LT0–LT5) at each time point. A total of 26 patients were included in this study. After wound closure, the test group showed significantly greater thickness in LT0–LT2 than the control group (LT0: test: 4.31 ± 0.73 mm, control: 2.99 ± 1.02 mm; LT1: test: 4.55 ± 0.69 mm, control: 3.60 ± 0.96 mm; LT2: test: 4.76 ± 0.54 mm, control: 4.05 ± 1.01 mm; p < 0.05). At 6 months, significant differences in LT0–LT1 were detected between the groups (LT0: test: 1.88 ± 0.57 mm, control: 1.08 ± 0.60 mm; LT1: test: 2.36 ± 0.66 mm, control: 1.69 ± 0.58 mm; p < 0.05). Within the limitations of this study, the use of digital workflow in GBR with particulate bone substitutes and i-PRF exerted a positive effect on the labial thickness of hard tissue in the coronal portion of the implant after wound closure and at 6 months.
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29
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Parvini P, Mihatovic I, Sahin D, Becker J, Schwarz F. Lateral alveolar ridge augmentation using an equine-derived collagen-containing bone block: A prospective case series. Clin Oral Implants Res 2021; 33:142-149. [PMID: 34679206 DOI: 10.1111/clr.13873] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/27/2021] [Accepted: 10/12/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To assess the clinical performance of an equine-derived collagen-containing bone block (CXBB) for lateral alveolar ridge augmentation and staged implant placement. MATERIAL AND METHODS A total of n = 16 patients (16 implants) had received a modified surgical protocol for lateral ridge augmentation using a size-adapted rigidly fixed CXBB and contour augmentation. After 26 weeks of submerged healing, the primary endpoint was defined as the final ridge width (RW26) sufficient to place an adequately dimensioned titanium implant at the respective sites. Secondary outcomes included the gain in ridge width (RWg) and the need for secondary grafting. Clinical outcomes (bleeding on probing-BOP, probing depth-PD, and mucosal recession-MR) were assessed at implant loading and after a median observation period of 12.3 months. RESULTS In all patients (n = 16) investigated, RW26 allowed for a successful placement of an adequately dimensioned titanium implant at respective sites exhibiting mean RWg values of 5.09 ± 1.07 mm. A soft tissue dehiscence was noted in one patient (6.3%), and a secondary grafting was needed in two patients (12.5%) The changes in mean BOP, PD, and MR values at V9 amounted to 10.23 ± 30.11%, 0.14 ± 0.80 mm, and -0.01 ± 0.04 mm, respectively. CONCLUSIONS CXBB may represent a feasible approach for lateral alveolar ridge augmentation and two-stage implant placement.
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Affiliation(s)
- Puria Parvini
- Department of Oral Surgery and Implantology, Goethe University, Frankfurt, Germany
| | - Ilja Mihatovic
- Department of Oral Surgery, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Didem Sahin
- Department of Oral Surgery, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Jürgen Becker
- Department of Oral Surgery, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Frank Schwarz
- Department of Oral Surgery and Implantology, Goethe University, Frankfurt, Germany.,Department of Oral Surgery, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
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Pérez Sayans M, Rivas Mundiña B, Chamorro Petronacci CM, García García A, Gómez García FJ, Crecente Campo J, Yañez Vilar S, Piñeiro Redondo Y, Rivas J, López Jornet P. Effect of mesoporous silica and its combination with hydroxyapatite on the regeneration of rabbit's bone defects: A pilot study. Biomed Mater Eng 2021; 32:281-294. [PMID: 33780356 DOI: 10.3233/bme-201144] [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: 11/15/2022]
Abstract
BACKGROUND Bone volume augmentation is a routine technique used in oral implantology and periodontology. Advances in the surgical techniques and the biomaterials field have allowed a greater accessibility to these treatments. Nevertheless, dehiscence and fenestrations incidence during dental implant procedures are still common in patients with bone loss. OBJECTIVE The main objective is to evaluate in a pilot experimental study the biological response to mesoporous silica (MS) hybrid scaffolds and its regenerative capacity in different formulations. METHODS Two defects per rabbit tibia were performed (one for control and other for test) and the biomaterials tested in this study have been used to fill the bone defects, prepared in two different formulations (3D hybrid scaffolds or powdered material, in 100% pure MS form, or 50% MS with 50% hydroxyapatite (HA). Euthanasia was performed 4 months after surgery for bone histopathological study and radiographic images were acquired by computerized microtomography. RESULTS Results showed that radiographically and histopathologically pure MS formulations lead to a lower biological response, e.g when formulated with HA, the osteogenic response in terms of osteoconduction was greater. CONCLUSIONS We observed tolerance and lack of toxicity of the MS and HA, without registering any type of local or systemic allergic reaction.
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Affiliation(s)
- Mario Pérez Sayans
- Unit of Oral Medicine, Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.,Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Berta Rivas Mundiña
- Pathology and Therapeutic Unit, Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Cintia M Chamorro Petronacci
- Unit of Oral Medicine, Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.,Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Abel García García
- Unit of Oral Medicine, Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.,Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Francisco José Gómez García
- The Murcia Institute of Biomedical Research (Instituto Murciano de Investigación Biomédica, IMIB), Campus de Ciencias de la Salud, El Palmar, Murcia, Spain
| | - José Crecente Campo
- MJ ALONSO LAB, Centre for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus Vida Avenida Barcelona, Santiago de Compostela, Spain
| | - Susana Yañez Vilar
- Department of Applied Physics, Faculty of Physics, Lab of Nanotechnology and Magnetism (NANOMAG), Ceramic Institute of Galicia ICG, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Yolanda Piñeiro Redondo
- Department of Applied Physics, Faculty of Physics, Lab of Nanotechnology and Magnetism (NANOMAG), Ceramic Institute of Galicia ICG, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - José Rivas
- Department of Applied Physics, Faculty of Physics, Lab of Nanotechnology and Magnetism (NANOMAG), Ceramic Institute of Galicia ICG, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Pía López Jornet
- The Murcia Institute of Biomedical Research (Instituto Murciano de Investigación Biomédica, IMIB), Campus de Ciencias de la Salud, El Palmar, Murcia, Spain
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31
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Deesricharoenkiat N, Jansisyanont P, Chuenchompoonut V, Mattheos N, Thunyakitpisal P. The effect of acemannan in implant placement with simultaneous guided bone regeneration in the aesthetic zone: a randomized controlled trial. Int J Oral Maxillofac Surg 2021; 51:535-544. [PMID: 34429224 DOI: 10.1016/j.ijom.2021.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 05/15/2021] [Accepted: 07/26/2021] [Indexed: 01/16/2023]
Abstract
Acemannan, a linear polysaccharide produced by Aloe vera, has been shown to have important biological effects promoting wound healing and tissue regeneration. The aim of this randomized clinical trial was to investigate the impact of acemannan in guided bone regeneration (GBR) with simultaneous implant placement. Twenty patients were randomly allocated to a test group (deproteinized bovine bone with particulate acemannan (mean size 32.45 μm)) and a control group (deproteinized bovine bone only). Twenty implants were placed with simultaneous GBR. Radiographic measurements were conducted on cone beam computed tomography (CBCT) scans immediately post-surgery and at 3 and 6 months. Vertical and horizontal dimensions of the buccal bone were measured at the implant platform (0) and at points 2, 4, 6, and 8 mm apically. The dimensional reduction of vertical and horizontal buccal bone was significantly smaller in the test group at 3 months postoperative (P < 0.05) at every position measured (0, 2, 4, 6, 8 mm), but the difference was not statistically significant at 6 months. Acemannan was found to be a safe and predictable biomaterial for GBR, which resulted in enhanced dimensional stability of the regenerated tissue at 3 months. However, these results were not replicated at 6 months. Further studies are required to document the long-term efficacy and potential of acemannan use as a supplement in bone regeneration.
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Affiliation(s)
- N Deesricharoenkiat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - P Jansisyanont
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
| | - V Chuenchompoonut
- Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - N Mattheos
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand; Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
| | - P Thunyakitpisal
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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32
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Trombelli L, Severi M, Ortensi L, Farina R. Peri-implant bone augmentation by the sub-periosteal peri-implant augmented layer technique and a bovine-derived bone block: A case report. Clin Adv Periodontics 2021; 12:39-43. [PMID: 34143940 DOI: 10.1002/cap.10172] [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: 05/11/2021] [Accepted: 06/11/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND When used with deproteinized bovine bone mineral (DBBM) delivered as a particulate, the sub-periosteal peri-implant augmented layer (SPAL) technique was effective in completely correcting up to 92% of peri-implant buccal bone dehiscences. The use of a DBBM block (bDBBM), however, may result in an improvement of the peri-implant bone dehiscence as well as a relevant lateral bone augmentation since its mechanical properties may ensure a better dimensional stability at flap manipulation than particulate DBBM. The aim of the present a proof-of-principle case report is to investigate if SPAL may be successfully used to obtain bone augmentation at peri-implant dehiscence sites when used with bDBBM. CASE PRESENTATION Lateral bone augmentation was performed using the SPAL technique at two implants showing a buccal peri-implant bone dehiscence immediately after their placement. A partial-thickness flap was elevated, leaving the periosteal layer on the buccal cortical bone plate. The periosteal layer was, in turn, elevated to create a pouch, which was used to stabilize a bDBBM graft at the peri-implant buccal bone dehiscences. At re-entry, exposed implant surfaces were completely covered by new thick hard tissue up to their most coronal portion. A free epithelial-connective tissue graft was used to augment the peri-implant soft tissue phenotype. CONCLUSION When used to accommodate bDBBM over the most coronal portion of an exposed implant, SPAL may successfully lead to an increase in peri-implant buccal tissue thickness.
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Affiliation(s)
- Leonardo Trombelli
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Italy.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (A.U.S.L.), Ferrara, Italy
| | - Mattia Severi
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Italy
| | - Luca Ortensi
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Italy
| | - Roberto Farina
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Italy.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (A.U.S.L.), Ferrara, Italy
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33
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Lim HC, Paeng KW, Jung UW, Benic GI. Effectiveness of xenogeneic and synthetic bone-block substitute materials with/without recombinant human bone morphogenetic protein-2: A preclinical study using a rabbit calvarium model. J Clin Periodontol 2021; 48:1126-1136. [PMID: 34109662 DOI: 10.1111/jcpe.13480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 03/17/2021] [Accepted: 04/20/2021] [Indexed: 12/17/2022]
Abstract
AIM To investigate new bone (NB) formation by using bone-block substitute materials with/without recombinant human bone morphogenetic protein-2 (rhBMP-2). MATERIALS AND METHODS Three synthetic bone-block substitute materials [biphasic calcium phosphate (BCP); nanostructured hydroxyapatite (NH); 3D-printed tricalcium phosphate/hydroxyapatite (3DP)] and one xenogeneic deproteinized bovine bone mineral (DBBM) block substitute were affixed to rabbit calvarium using osteosynthesis screws, either with rhBMP-2 (n = 12) or without rhBMP-2 (n = 16). At 2 or 12 weeks (n = 6 with rhBMP-2 and n = 8 without rhBMP-2 for each week), histologic, histomorphometric and microcomputed tomography analyses were performed. RESULTS The application of rhBMP-2 increased NB formation in all experimental groups at both weeks. DBBM resulted in a greater area of NB compared with synthetic blocks either with or without rhBMP-2 at 2 weeks (2.8 ± 0.9 vs. 1.4 ± 0.5-1.9 ± 1.4 mm2 ; 1.4 ± 1.0 vs. 0.6 ± 0.3-0.9 ± 0.5 mm2 ) and without rhBMP-2 at 12 weeks (3.0 ± 0.8 vs. 1.7 ± 0.7-2.6 ± 1.5 mm2 ) (p > 0.05). NB formation did not differ significantly for DBBM and the three types of synthetic block with rhBMP-2 at 12 weeks (4.5 ± 2.0 vs. 3.8 ± 0.7-5.1 ± 1.1 mm2 ; p > 0.05). CONCLUSIONS rhBMP-2 enhanced NB in all blocks. DBBM blocks yielded more NB than synthetic blocks without rhBMP-2. The application of rhBMP-2 appears to compensate for differences in late healing.
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Affiliation(s)
- Hyun-Chang Lim
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - Kyeong-Won Paeng
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Goran I Benic
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland.,Institute for Research and Education in Dental Medicine, Lugano, Switzerland
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Guided bone regeneration simultaneous with implant placement using bovine-derived xenograft with and without liquid platelet-rich fibrin: a randomized controlled clinical trial. Clin Oral Investig 2021; 25:5563-5575. [PMID: 34047835 DOI: 10.1007/s00784-021-03987-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To assess augmentation success after guided bone regeneration (GBR) carried out simultaneously with implant placement using bovine-derived xenograft alone and in combination with liquid platelet-rich fibrin (liquid-PRF). METHODS This randomized controlled clinical trial was conducted on patients with horizontal bone deficiency in the posterior regions of the mandible. After implant placement, GBR procedures were randomly performed using liquid-PRF-enriched bovine-derived xenograft (for the test group) and with bovine-derived xenograft alone (for the control group). To assess the change in augmentation thickness, the primary outcome of the study, cone beam computed tomography was carried out at the implant sites on completion and 6 months after surgery. The secondary outcomes were marginal bone level and implant survival rate at prosthetic delivery and at 6 months, 1 year, and 2 years follow-up after loading. The significance level was set at p<0.05 for all analysis. RESULTS Twenty patients with 50 implants were analyzed for the test group and 20 patients with 48 implants for the control group. At 6 months postoperatively, the mean values of augmentation thickness were 1.63 ± 0.21 mm, 2.59 ± 0.34 mm, and 3.11 ± 0.36 mm for the test group and 1.34 ± 0.14 mm, 2.49 ± 0.24 mm, and 2.97 ± 0.24 mm for the control group at 2 mm, 4 mm, and 6 mm below to the implant shoulder (p < 0.001, p = 0.007, and p = 0.036, respectively). The mean marginal bone loss was found to be less than 1 mm for both study groups during the 2 years of follow-up after prosthetic loading. Implant survival rate was 100% for both study groups. CONCLUSION Bovine-derived xenograft alone and in combination with liquid-PRF are both successful in achieving bone augmentation around the implants and produce a small change in marginal bone level and a high implant survival rate after loading. CLINICAL RELEVANCE There is a lack of evidence in the literature regarding the augmentation success of liquid-PRF used in combination with bone graft substitutes. This study indicates that liquid-PRF could be used as a supportive material with bovine-derived xenograft in GBR procedures carried out simultaneously with implant placement.
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Bassi APF, Bizelli VF, Francatti TM, Rezende de Moares Ferreira AC, Carvalho Pereira J, Al-Sharani HM, de Almeida Lucas F, Faverani LP. Bone Regeneration Assessment of Polycaprolactone Membrane on Critical-Size Defects in Rat Calvaria. MEMBRANES 2021; 11:membranes11020124. [PMID: 33572318 PMCID: PMC7916152 DOI: 10.3390/membranes11020124] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 12/13/2022]
Abstract
Biomaterials for use in guided bone regeneration (GBR) are constantly being investigated and developed to improve clinical outcomes. The present study aimed to comparatively evaluate the biological performance of different membranes during the bone healing process of 8 mm critical defects in rat calvaria in order to assess their influence on the quality of the newly formed bone. Seventy-two adult male rats were divided into three experimental groups (n = 24) based on the membranes used: the CG—membrane-free control group (only blood clot, negative control), BG—porcine collagen membrane group (Bio-Guide®, positive control), and the PCL—polycaprolactone (enriched with 5% hydroxyapatite) membrane group (experimental group). Histological and histometric analyses were performed at 7, 15, 30, and 60 days postoperatively. The quantitative data were analyzed by two-way ANOVA and Tukey’s test (p < 0.05). At 7 and 15 days, the inflammatory responses in the BG and PCL groups were significantly different (p < 0.05). The PCL group, at 15 days, showed a large area of newly formed bone. At 30 and 60 days postoperatively, the PCL and BG groups exhibited similar bone healing, including some specimens showing complete closure of the critical defect (p = 0.799). Thus, the PCL membrane was biocompatible, and has the potential to help with GBR procedures.
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Affiliation(s)
- Ana Paula Farnezi Bassi
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
- Correspondence: ; Tel.: +55-18-36363242
| | - Vinícius Ferreira Bizelli
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Tamires Mello Francatti
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Ana Carulina Rezende de Moares Ferreira
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Járede Carvalho Pereira
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Hesham Mohammed Al-Sharani
- School of Dentistry, Faculty of Dentistry, Ibb University, Ibb, Yemen;
- Department of Maxillofacial Surgery, School of Stomatology, Harbin Medical University, Harbin 150081, China
| | - Flavia de Almeida Lucas
- Araçatuba Veterinary Medicine School, UNESP—São Paulo State University, Araçatuba, São Paulo 16050-680, Brazil;
| | - Leonardo Perez Faverani
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
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Wang M, Zhang X, Li Y, Mo A. The Influence of Different Guided Bone Regeneration Procedures on the Contour of Bone Graft after Wound Closure: A Retrospective Cohort Study. MATERIALS 2021; 14:ma14030583. [PMID: 33513735 PMCID: PMC7865681 DOI: 10.3390/ma14030583] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/15/2021] [Accepted: 01/22/2021] [Indexed: 02/05/2023]
Abstract
The aim of this study was to evaluate the impact of different guided bone regeneration (GBR) procedures on bone graft contour after wound closure in lateral ridge augmentation. A total of 48 patients with 63 augmented sites were included in this study. Participants were divided into 4 groups (n = 12 in each group) based on different surgical procedures: group 1: particulate bone substitute + collagen membrane; group 2: particulate bone substitute + collagen membrane + healing cap, group 3: particulate bone substitute + injectable platelet-rich fibrin (i-PRF) + collagen membrane; group 4: particulate bone substitute + i-PRF + surgical template + collagen membrane. After wound closure, the thickness of labial graft was measured at 0–5 mm apical to the implant shoulder (T0–T5). At T0–T2, the thickness of labial graft in group 4 was significantly higher than the other three groups (p < 0.05). And group 4 showed significantly more labial graft thickness than group 1 and group 2 at T3–T5 (p < 0.05). Within the limitations of this study, the use of i-PRF in combination with the surgical template in GBR may contribute to achieving an appropriate bone graft contour after wound closure.
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Affiliation(s)
- Maoxia Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (M.W.); (X.Z.)
| | - Xiaoqing Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (M.W.); (X.Z.)
| | - Yazhen Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China;
| | - Anchun Mo
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (M.W.); (X.Z.)
- Correspondence:
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Tay JRH, Lu XJ, Lai WMC, Fu JH. Clinical and histological sequelae of surgical complications in horizontal guided bone regeneration: a systematic review and proposal for management. Int J Implant Dent 2020; 6:76. [PMID: 33241468 PMCID: PMC7688776 DOI: 10.1186/s40729-020-00274-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 10/27/2020] [Indexed: 12/11/2022] Open
Abstract
It is not uncommon to encounter post-surgical complications after horizontal guided bone regeneration (GBR). The primary aim of this review was to evaluate the incidence and types of complications that occur after horizontal GBR and propose management strategies to deal with these clinical situations. A secondary aim was to conduct a histomorphometric review of the wound healing process at sites that experienced post-surgical complications after GBR. A keyword search of MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials for studies published in English from January 2015 to January 2020 was conducted for the primary aim and 23 studies were selected. A second search addressing the secondary aim was conducted, and five studies were included. Site-level analysis showed that the weighted mean incidence proportion of minor wound dehiscence and minor infections occurring at the augmented site was 9.9% [95% CI 6.4, 13.9, P < 0.01] and 1.5% [95% CI 0.4, 3.1, P = 0.21) respectively. Patient-level analysis showed minor and major complications occurring at a weighted mean incidence proportion of 16.1% [95% CI 11.9, 20.8, P = 0.01] and 1.6% [95% CI 0.0, 4.7, P < 0.01] respectively, while neurosensory alterations at the donor site was 7.0% [95% CI 1.3, 15.5, P < 0.01]. Subgroup analysis also revealed that the use of block grafts increased the incidence proportion of minor post-surgical complications, whereas a staged GBR procedure increased the incidence proportion of both minor and major post-surgical complications. Although exposure of the barrier membrane is often associated with less bone regeneration and graft resorption, the type of membrane used (resorbable or non-resorbable) had no statistically significant influence on any post-surgical complication. Histologically, a layer of fibrous connective tissue instead of bone is commonly observed at the interface between the native bone at the recipient site and the regenerated bone in cases with membrane exposure after GBR procedure. Minor wound dehiscence was the highest incidence proportion of post-surgical complications. Methods ranging from daily application of antiseptics, use of systemic antimicrobials, regular reviews, and total removal of the non-integrated biomaterials are commonly prescribed to manage these post-surgical complications in attempt to minimise the loss of tissue at the surgical site.
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Affiliation(s)
- John Rong Hao Tay
- Discipline of Periodontics, National University Centre for Oral Health Singapore, 9 Lower Kent Ridge Road, Singapore, 119085, Singapore.,Department of Restorative Dentistry, National Dental Centre Singapore, 5 Second Hospital Ave, Singapore, 168938, Singapore
| | - Xiaotong Jacinta Lu
- Discipline of Periodontics, National University Centre for Oral Health Singapore, 9 Lower Kent Ridge Road, Singapore, 119085, Singapore
| | - Wei Ming Clement Lai
- Statistics Unit, National University Centre for Oral Health Singapore, 9 Lower Kent Ridge Road, Singapore, 119085, Singapore
| | - Jia-Hui Fu
- Discipline of Periodontics, National University Centre for Oral Health Singapore, 9 Lower Kent Ridge Road, Singapore, 119085, Singapore.
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Kim YK, Ku JK. Guided bone regeneration. J Korean Assoc Oral Maxillofac Surg 2020; 46:361-366. [PMID: 33122463 PMCID: PMC7609932 DOI: 10.5125/jkaoms.2020.46.5.361] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 09/14/2020] [Indexed: 12/15/2022] Open
Abstract
Guided bone regeneration (GBR) is a surgical procedure that utilizes bone grafts with barrier membranes to reconstruct small defects around dental implants. This procedure is commonly deployed on dehiscence or fenestration defects ≥2 mm, and mixing with autogenous bone is recommended on larger defects. Tension-free primary closure is a critical factor to prevent wound dehiscence, which is critical cause of GBR failure. A barrier membrane should be rigidly fixed without mobility. If the barrier is exposed, closed monitoring should be utilized to prevent secondary infection.
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Affiliation(s)
- Young-Kyun Kim
- Editor-in-Chief of J Korean Assoc Oral Maxillofac Surg, Seongnam, Korea.,Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Dentistry & Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
| | - Jeong-Kui Ku
- Section Editor of J Korean Assoc Oral Maxillofac Surg, Seongnam, Korea.,Department of Oral and Maxillofacial Surgery, Section of Dentistry, Armed Forces Capital Hospital, Armed Forces Medical Command, Seongnam, Korea
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Kuchler U, Heimel P, Stähli A, Josef Strauss F, Luza B, Gruber R. Impact of DBBM Fragments on the Porosity of the Calvarial Bone: A Pilot Study on Mice. MATERIALS 2020; 13:ma13214748. [PMID: 33114211 PMCID: PMC7660694 DOI: 10.3390/ma13214748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/17/2020] [Accepted: 10/20/2020] [Indexed: 12/27/2022]
Abstract
Deproteinized bovine bone mineral (DBBM) is brittle and can break into fragments. Here, we examined whether DBBM fragments have an impact on mice calvarial bone during bone augmentation. DBBM was either randomly crushed (DBBM fragments) or left undisturbed (DBBM granules). Then, DBBM fragments or original DBBM granules were placed onto calvarial bone in 20 BALB/c mice. Following random allocation, ten mice received DBBM fragments and ten mice received original DBBM granules. After fourteen days of healing, micro computed tomography (micro-CT) and histological analysis of the augmented sites were performed. The primary outcome was the porosity of the calvarial bone. The micro-CT analysis revealed that DBBM fragments failed to significantly change the porosity of the calvarial bone as compared with original DBBM granules, despite the slightly higher bone resorption in the DBBM fragment group, 10.3% (CI 6.3–11.6) versus 6.1% (CI 4.1–7.8, p = 0.355), respectively. The cortical bone volume was not altered by DBBM fragments as compared with original DBBM granules, i.e., 79.0% (CI 78.9–81.2) versus 81.5% (CI 80.1–83.3, p = 0.357), respectively. The DBBM fragment group revealed similar bone thickness values as compared with the DBBM granules group, i.e., 0.26 mm (CI 0.23–0.29) versus 0.25 mm (CI 0.22–0.27, p = 0.641), respectively. The histological evaluation supported the micro-CT observations, displaying minor signs of porosity and resorption. The particle-size distribution analysis confirmed a shift towards smaller particle sizes in the DBBM fragment group. These findings suggest that DBBM fragments behave similarly to original DBBM granules in terms of bone morphological changes at augmented sites.
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Affiliation(s)
- Ulrike Kuchler
- Department of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria;
| | - Patrick Heimel
- Core Facility Hard Tissue and Biomaterial Research, Karl Donath Laboratory, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (P.H.); (B.L.)
- Ludwig Boltzmann Institute for Clinical and Experimental Traumatology, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1090 Vienna, Austria
| | - Alexandra Stähli
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (A.S.); (F.J.S.)
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
| | - Franz Josef Strauss
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (A.S.); (F.J.S.)
- Department of Conservative Dentistry, School of Dentistry, University of Chile, Santiago 8380544, Chile
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, 8032 Zurich, Switzerland
| | - Bernadette Luza
- Core Facility Hard Tissue and Biomaterial Research, Karl Donath Laboratory, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (P.H.); (B.L.)
- Ludwig Boltzmann Institute for Clinical and Experimental Traumatology, 1090 Vienna, Austria
| | - Reinhard Gruber
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (A.S.); (F.J.S.)
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
- Correspondence: ; Tel.: +43-699-107-18-472
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40
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Shen H, Zhi Y, Zhu F, Si J, Shi J, Shen SG. Experimental and clinical evaluation of BMP2-CPC graft versus deproteinized bovine bone graft for guided bone regeneration: A pilot study. Dent Mater J 2020; 40:191-201. [PMID: 33028786 DOI: 10.4012/dmj.2019-437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this study, we proposed BMP2-incorporated calcium phosphate cement (BMP2-CPC), for application in guided bone regeneration (GBR) and compared the experimental bone restoration performance and clinical alveolar bone reconstruction outcome of BMP2-CPC with those of deproteinized bovine bone (DBB). The animal study indicated that, compared to DBB, which induced the slow ingrowth of new bone, BMP2-CPC induced numerous small growth centers for bone regeneration and facilitated a significant amount of bone regeneration in rabbit calvarial bone defects. Fewer residual graft particles remained in the BMP2-CPC-treated defects than in the DBB-treated defects. The clinical study indicated that BMP2-CPC was similar to DBB in remedying alveolar bone insufficiency and maintaining implant stability. In conclusion, the results of this present study indicate that compared to DBB, BMP2-CPC can significantly enhance in vivo bone regeneration and remodeling in rabbit calvarial bone defects and shows preliminary support on its clinical application in GBR surgeries.
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Affiliation(s)
- Hongzhou Shen
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology
| | - Yin Zhi
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine
| | - Fangxing Zhu
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine
| | - Jiawen Si
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine
| | - Jun Shi
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine
| | - Steve Gf Shen
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology.,Shanghai University of Medicine & Health Sciences
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41
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De Bruyckere T, Cabeza RG, Eghbali A, Younes F, Cleymaet R, Cosyn J. A randomized controlled study comparing guided bone regeneration with connective tissue graft to reestablish buccal convexity at implant sites: A 1‐year volumetric analysis. Clin Implant Dent Relat Res 2020; 22:468-476. [DOI: 10.1111/cid.12934] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/23/2020] [Accepted: 06/19/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas De Bruyckere
- Faculty of Medicine and Pharmacy, Oral Health Research Group (ORHE)Vrije Universiteit Brussel (VUB) Brussels Belgium
- Department of Periodontology and Oral ImplantologyFaculty of Medicine and Health Sciences, Dental School, Ghent University Ghent Belgium
| | - Ricardo Garcia Cabeza
- Department of Periodontology and Oral ImplantologyFaculty of Medicine and Health Sciences, Dental School, Ghent University Ghent Belgium
| | - Aryan Eghbali
- Faculty of Medicine and Pharmacy, Oral Health Research Group (ORHE)Vrije Universiteit Brussel (VUB) Brussels Belgium
- Department of Periodontology and Oral ImplantologyFaculty of Medicine and Health Sciences, Dental School, Ghent University Ghent Belgium
| | - Faris Younes
- Department of Periodontology and Oral ImplantologyFaculty of Medicine and Health Sciences, Dental School, Ghent University Ghent Belgium
| | - Roberto Cleymaet
- Faculty of Medicine and Pharmacy, Oral Health Research Group (ORHE)Vrije Universiteit Brussel (VUB) Brussels Belgium
| | - Jan Cosyn
- Faculty of Medicine and Pharmacy, Oral Health Research Group (ORHE)Vrije Universiteit Brussel (VUB) Brussels Belgium
- Department of Periodontology and Oral ImplantologyFaculty of Medicine and Health Sciences, Dental School, Ghent University Ghent Belgium
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42
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Dini C, Nagay BE, Magno MB, Maia LC, Barão VAR. Photofunctionalization as a suitable approach to improve the osseointegration of implants in animal models-A systematic review and meta-analysis. Clin Oral Implants Res 2020; 31:785-802. [PMID: 32564392 DOI: 10.1111/clr.13627] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 01/27/2023]
Abstract
OBJECTIVES To determine whether photofunctionalization influences dental implant osseointegration. MATERIAL AND METHODS Data on osseointegration rates were extracted from 8 databases, based on bone-to-implant contact (BIC) and pushout tests. Internal validity was accessed through the SYRCLE risk of bias tool for animal experimental studies. Meta-analyses were performed for investigation of the influence of photofunctionalization on implant osseointegration, with a random effect and a confidence interval of 95%. The certainty of evidence was accessed through the GRADE approach. RESULTS Thirty-four records were identified, and 10 were included in the meta-analysis. Photofunctionalized implants showed higher mean values for BIC in rabbits (MD 6.92 [1.01, 12.82], p = .02), dogs (MD 23.70 [10.23, 37.16], p = .001), rats (MD 20.93 [12.91, 28.95], p < .0001), and in the pooled BIC analyses (MD 14.23 [7.80, 20.66], p < .0001) compared to those in control implants in the overall assay. Conversely, at late healing periods, the pooled BIC meta-analyses showed no statistically significant differences (p > .05) for photofunctionalized and control implants at 12 weeks of follow-up. For pushout analysis, photofunctionalized implants presented greater bone strength integration (MD 19.92 [13.88, 25.96], p < .0001) compared to that of control implants. The heterogeneity between studies ranged from "not important" to "moderate" for rabbits I2 = 24%, dogs I2 = 0%, rats I2 = 0%, and pooled BIC (I2 = 49%), while considerable heterogeneity was observed for pushouts (I2 = 90%). CONCLUSION Photofunctionalization improves osseointegration in the initial healing period of implants, as summarized from available data from rabbit, dog, and rat in vivo models.
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Affiliation(s)
- Caroline Dini
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Bruna Egumi Nagay
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Marcela Baraúna Magno
- Department of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucianne Cople Maia
- Department of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Valentim Adelino Ricardo Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
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43
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Sbricoli L, Guazzo R, Annunziata M, Gobbato L, Bressan E, Nastri L. Selection of Collagen Membranes for Bone Regeneration: A Literature Review. MATERIALS 2020; 13:ma13030786. [PMID: 32050433 PMCID: PMC7040903 DOI: 10.3390/ma13030786] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/23/2020] [Accepted: 02/05/2020] [Indexed: 12/22/2022]
Abstract
Several treatment modalities have been proposed to regenerate bone, including guided bone regeneration (GBR) where barrier membranes play an important role by isolating soft tissue and allowing bone to grow. Not all membranes biologically behave the same way, as they differ from their origin and structure, with reflections on their mechanical properties and on their clinical performance. Collagen membranes have been widely used in medicine and dentistry, because of their high biocompatibility and capability of promoting wound healing. Recently, collagen membranes have been applied in guided bone regeneration with comparable outcomes to non-resorbable membranes. Aim of this work is to provide a review on the main features, application, outcomes, and clinical employment of the different types of collagen membranes. Comparisons with non-resorbable membranes are clarified, characteristics of cross-linked collagen versus native collagen, use of different grafting materials and need for membrane fixation are explored in order to gain awareness of the indications and limits and to be able to choose the right membrane required by the clinical condition.
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Affiliation(s)
- Luca Sbricoli
- Department of Neurosciences, School of Dentistry, University of Padova, Via Giustiniani 2, 35100 Padova, Italy; (R.G.); (L.G.); (E.B.)
- Correspondence: ; Tel.: +39-0498212040
| | - Riccardo Guazzo
- Department of Neurosciences, School of Dentistry, University of Padova, Via Giustiniani 2, 35100 Padova, Italy; (R.G.); (L.G.); (E.B.)
| | - Marco Annunziata
- Multidisciplinary Department of Medical Surgical and Dental Specialties, University of Campania “Luigi Vanvitelli”, 80100 Naples, Italy; (M.A.); (L.N.)
| | - Luca Gobbato
- Department of Neurosciences, School of Dentistry, University of Padova, Via Giustiniani 2, 35100 Padova, Italy; (R.G.); (L.G.); (E.B.)
| | - Eriberto Bressan
- Department of Neurosciences, School of Dentistry, University of Padova, Via Giustiniani 2, 35100 Padova, Italy; (R.G.); (L.G.); (E.B.)
| | - Livia Nastri
- Multidisciplinary Department of Medical Surgical and Dental Specialties, University of Campania “Luigi Vanvitelli”, 80100 Naples, Italy; (M.A.); (L.N.)
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Temmerman A, Cortellini S, Van Dessel J, De Greef A, Jacobs R, Dhondt R, Teughels W, Quirynen M. Bovine‐derived xenograft in combination with autogenous bone chips versus xenograft alone for the augmentation of bony dehiscences around oral implants: A randomized, controlled, split‐mouth clinical trial. J Clin Periodontol 2019; 47:110-119. [DOI: 10.1111/jcpe.13209] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 08/29/2019] [Accepted: 10/03/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Andy Temmerman
- Section of Periodontology Department of Oral Health Sciences KU Leuven & Dentistry University Hospitals, KU Leuven Leuven Belgium
| | - Simone Cortellini
- Section of Periodontology Department of Oral Health Sciences KU Leuven & Dentistry University Hospitals, KU Leuven Leuven Belgium
| | - Jeroen Van Dessel
- OMFS‐Impath Research Group Department of Oral & Maxillofacial Surgery KU Leuven & UZ University Hospitals Leuven Belgium
| | - Alexander De Greef
- Section of Periodontology Department of Oral Health Sciences KU Leuven & Dentistry University Hospitals, KU Leuven Leuven Belgium
| | - Reinhilde Jacobs
- OMFS‐Impath Research Group Department of Oral & Maxillofacial Surgery KU Leuven & UZ University Hospitals Leuven Belgium
| | - Rutger Dhondt
- Section of Periodontology Department of Oral Health Sciences KU Leuven & Dentistry University Hospitals, KU Leuven Leuven Belgium
| | - Wim Teughels
- Section of Periodontology Department of Oral Health Sciences KU Leuven & Dentistry University Hospitals, KU Leuven Leuven Belgium
| | - Marc Quirynen
- Section of Periodontology Department of Oral Health Sciences KU Leuven & Dentistry University Hospitals, KU Leuven Leuven Belgium
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