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Wang M, Li B, Feng H, Ye Q, Sun Y, Duan X, He J. Assessment of the osteogenic effect after maxillary sinus floor elevation and simultaneous implantation with or without bone grafts by analyzing trabecular bone parameters: a retrospective study. J Appl Oral Sci 2024; 32:e20230406. [PMID: 38359269 PMCID: PMC10984575 DOI: 10.1590/1678-7757-2023-0406] [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: 11/07/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 02/17/2024] Open
Abstract
OBJECTIVE The aim of this population-based retrospective study was to compare the osteogenic effect of newly formed bone after maxillary sinus floor elevation (MSFE) and simultaneous implantation with or without bone grafts by quantitatively analyzing trabecular bone parameters. METHODOLOGY A total of 100 patients with missing posterior maxillary teeth who required MSFE and implantation were included in this study. Patients were divided into two groups: the non-graft group (n=50) and the graft group (n=50). Radiographic parameters were measured using cone beam computed tomography (CBCT), and the quality of newly formed bone was analyzed by assessing trabecular bone parameters using CTAn (CTAnalyzer, SkyScan, Antwerp, Belgium) software. RESULTS In the selected regions of interest, the non-graft group showed greater bone volume/total volume (BV/TV), bone surface/total volume (BS/TV), trabecular number (Tb. N), and trabecular thickness (Tb. Th) than the graft group (p<0.001). The non-graft group showed lower trabecular separation (Tb. Sp) than the graft group (p<0.001). The incidence of perforation and bleeding was higher in the graft group than in the non-graft group (p<0.001), but infection did not significantly differ between groups (p>0.05). Compared to the graft group, the non-graft group showed lower postoperative bone height, gained bone height and apical bone height (p<0.001). CONCLUSION MSFE with and without bone grafts can significantly improve bone formation. In MSFE, the use of bone grafts hinders the formation of good quality bone, whereas the absence of bone grafts can generate good bone quality and limited bone mass.
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Affiliation(s)
- Mohan Wang
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
- Shanghai Jiao Tong University School of MedicineNinth People's HospitalCollege of StomatologyShanghaiChinaShanghai Jiao Tong University School of Medicine, Ninth People's Hospital, College of Stomatology, Department of Oral and Maxillofacial Surgery, Shanghai, China.
| | - Beibei Li
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| | - Hailiang Feng
- Zhejiang University School of MedicineThe Second Affiliated HospitalDepartment of StomatologyHangzhouChinaZhejiang University School of Medicine, The Second Affiliated Hospital, Linping Campus, Department of Stomatology, Hangzhou, China.
| | - Qingsong Ye
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| | - Yahui Sun
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| | - Xinxiu Duan
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| | - Jiacai He
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
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Starch-Jensen T, Bruun NH, Spin-Neto R. Endo-sinus bone gain following osteotome-mediated sinus floor elevation with Bio-Oss Collagen compared with no grafting material: a one-year single-blind randomized controlled trial. Int J Oral Maxillofac Surg 2023; 52:1205-1215. [PMID: 36997448 DOI: 10.1016/j.ijom.2023.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/31/2023]
Abstract
The objective of this study was to assess endo-sinus bone gain (ESBG) following osteotome-mediated sinus floor elevation with Bio-Oss Collagen (test) compared with no grafting material (control) using two- and three-dimensional radiographic methods, as part of a randomized controlled trial (ClinicalTrials.gov, NCT04618900). Forty healthy patients who met the necessary eligibility criteria were allocated by block randomization to either the test group (20 patients) or control group (20 patients). Cone beam computed tomography scans were obtained at enrolment (T0), immediately after surgery (T1), at delivery of the prosthetic rehabilitation (T2), and 1 year after functional implant loading (T3). Mean differences were expressed with the 95% confidence interval; significance was set at P < 0.05. ESBG was significantly increased with Bio-Oss Collagen compared with no grafting material at T1, T2, and T3 (P < 0.001). A gradual decrease in ESBG was observed over time with both treatment modalities (P < 0.001), which diminished the difference between the test and control groups at T2 and T3. ESBG was observed to be positively correlated with implant protrusion length and negatively correlated with the residual bone height. In osteotome-mediated sinus floor elevation, the application of Bio-Oss Collagen underneath the elevated Schneiderian membrane improved ESBG significantly when compared with no grafting material. However, the increased ESBG seems not to have positively improved the treatment outcomes in terms of the implant stability quotient or the survival of the implants or suprastructures.
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Affiliation(s)
- T Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital and Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark.
| | - N H Bruun
- Unit of Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark
| | - R Spin-Neto
- Department of Dentistry and Oral Health, Section of Oral Radiology, Faculty of Health, Aarhus University, Aarhus, Denmark
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Starch-Jensen T, Bruun NH, Spin-Neto R. Outcomes following osteotome-mediated sinus floor elevation with Bio-Oss Collagen or no grafting material: a one-year single-blind randomized controlled trial. Int J Oral Maxillofac Surg 2023:S0901-5027(23)00001-2. [PMID: 36639342 DOI: 10.1016/j.ijom.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 01/13/2023]
Abstract
The objective of this single-blind randomized controlled trial was to test the hypothesis of no difference in implant treatment outcome and patient-reported outcome measures (PROMs) following osteotome-mediated sinus floor elevation with Bio-Oss Collagen (test) compared with no grafting material (control) after 1 year of implant loading. Forty healthy patients (27 female, 13 male) with a mean age of 49 years (range 24-74 years) were randomly allocated to the test or control group. Outcome measures included survival of the suprastructures and implants, peri-implant marginal bone loss, complications, and PROMs; the latter included the Oral Health Impact Profile-14 and a self-administered questionnaire with visual analogue scales to assess the peri-implant tissue, implant crown, function of the implant, total implant treatment outcome, and oral health-related quality of life. Mean differences were expressed with the standard deviation and 95% confidence interval. The level of significance was 0.05. Survival of the suprastructures and implants was 100% with both treatment modalities. No significant difference in any of the outcome measures was observed between the test and control groups. High patient satisfaction and a significant improvement in quality of life were observed with both treatment modalities. Consequently, no significant difference in implant treatment outcome between the test and control groups was revealed after 1 year of implant loading. Neither of the treatment modalities can therefore be considered better than the other.
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Affiliation(s)
- T Starch-Jensen
- Department of Oral and Maxillofacial Surgery, Aalborg University Hospital and Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark.
| | - N H Bruun
- Unit of Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark
| | - R Spin-Neto
- Department of Dentistry and Oral Health, Section of Oral Radiology, Faculty of Health, Aarhus University, Aarhus, Denmark
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Blanc-Sylvestre N, Bouchard P, Chaussain C, Bardet C. Pre-Clinical Models in Implant Dentistry: Past, Present, Future. Biomedicines 2021; 9:1538. [PMID: 34829765 PMCID: PMC8615291 DOI: 10.3390/biomedicines9111538] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/11/2021] [Accepted: 10/15/2021] [Indexed: 12/23/2022] Open
Abstract
Biomedical research seeks to generate experimental results for translation to clinical settings. In order to improve the transition from bench to bedside, researchers must draw justifiable conclusions based on data from an appropriate model. Animal testing, as a prerequisite to human clinical exposure, is performed in a range of species, from laboratory mice to larger animals (such as dogs or non-human primates). Minipigs appear to be the animal of choice for studying bone surgery around intraoral dental implants. Dog models, well-known in the field of dental implant research, tend now to be used for studies conducted under compromised oral conditions (biofilm). Regarding small animal models, research studies mostly use rodents, with interest in rabbit models declining. Mouse models remain a reference for genetic studies. On the other hand, over the last decade, scientific advances and government guidelines have led to the replacement, reduction, and refinement of the use of all animal models in dental implant research. In new development strategies, some in vivo experiments are being progressively replaced by in vitro or biomaterial approaches. In this review, we summarize the key information on the animal models currently available for dental implant research and highlight (i) the pros and cons of each type, (ii) new levels of decisional procedures regarding study objectives, and (iii) the outlook for animal research, discussing possible non-animal options.
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Affiliation(s)
- Nicolas Blanc-Sylvestre
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Department of Periodontology, Rothschild Hospital, European Postgraduate in Periodontology and Implantology, Université de Paris, 75012 Paris, France
| | - Philippe Bouchard
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Department of Periodontology, Rothschild Hospital, European Postgraduate in Periodontology and Implantology, Université de Paris, 75012 Paris, France
| | - Catherine Chaussain
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, Dental Medicine Department, Bretonneau Hospital, GHN-Université de Paris, 75018 Paris, France
| | - Claire Bardet
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
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Yang DW, Xiao JY, Zhang P, Lu BY, Liang X. Retrospective study on the merits of bone grafts and the influence of implant protrusion length after osteotome sinus elevation surgery. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2021; 39:570-575. [PMID: 34636206 DOI: 10.7518/hxkq.2021.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVES This study aims to evaluate the endo-sinus bone remodeling of dental implants placed via osteotome sinus floor elevation (OSFE) after 6 months and using different implant protrusion lengths and bone grafts through cone beam computed tomography (CBCT). METHODS Ninety-six patients with 124 implants were included and assigned into four groups. Group 1: implant protrusion length<4 mm with bone graft; group 2: implant protrusion length>4 mm with bone graft; group 3: implant protrusion length<4 mm without bone graft; group 4: implant protrusion length>4 mm without bone graft. Apical bone gain (ABG), cortical bone gain (CBG), bone density gain (BDG), and marginal bone loss (MBL) were observed and analyzed at baseline and 6 months after implant surgery. RESULTS The CBG in grafted groups 1 and 2 was higher than that in non-grafted groups. The ABG and BDG were higher in non-grafted groups 3 and 4 than in grafted groups, and the levels in group 3 were higher than those in group 4. The CBG in grafted group 2 was higher than that in group 1. No significant difference was observed in MBL analysis. CONCLUSIONS The BDG of IPL<4 mm implants was higher than IPL>4 mm implant when bone grafts were not applied. No relevance was observed between IPL and CBG. Bone grafts can accelerate endo-sinus bone remodeling by increasing CBG and dissipating the influence of IPL on BDG.
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Affiliation(s)
- Da-Wei Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jing-Yi Xiao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Peng Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Bo-Yao Lu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xing Liang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Zhu L, Yang J, Gong J, Zhang C, Ganss B, Wang H. Early bone formation in mini-lateral window sinus floor elevation with simultaneous implant placement: An in vivo experimental study. Clin Oral Implants Res 2021; 32:448-459. [PMID: 33455002 DOI: 10.1111/clr.13714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To investigate the early bone formation in beagles with mini-lateral window sinus floor elevation and simultaneous implant placement. MATERIAL AND METHODS Six beagles were selected for the split-mouth design procedures. In each animal, one maxillary recess received a 5 mm-diameter mini-round lateral osteotomy (test group), and the contralateral maxillary recess received a large rectangular osteotomy (10 mm long and 8 mm wide), (control group). Simultaneous implant installation was executed on bilateral maxillary recesses. Tetracycline and calcein dyes were administered on the 14th, 13th days and the 4th, 3rd days prior to sacrifice, respectively. After 8 weeks of healing, the beagles were euthanized for fluorescent labeling and histomorphometric analyses. RESULTS In both groups, new bone formation initiated from the circumferential native bone of the maxillary recesses and extended toward the central sub-recess cavities. The maxillary recesses with the mini-window procedures exhibited superior mineral apposition rate, bone formation rate, and the percentage of new bone area to those of the group exposed to large osteotomy procedure (p < .05). While there was no significant difference in the value of bone-to-implant contact, the mini-window group displayed a tendency for an increase in this aspect (p > .05). Bone formation rate and new bone amount were not statistically correlated with bone-to-implant contact (p > .05). CONCLUSION The hypothesis that mini-lateral window sinus floor elevation with simultaneous implant placement would improve early new bone formation in augmented sinus compared with large lateral window procedure is accepted.
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Affiliation(s)
- Liqin Zhu
- Department of Oral Implantology, Stomatology Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Stomatology College, Zhejiang University, Hangzhou, China.,Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Jiakang Yang
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Jiaxing Gong
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Chenqiu Zhang
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
| | - Bernhard Ganss
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Huiming Wang
- Department of Oral Implantology, Stomatology Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Stomatology College, Zhejiang University, Hangzhou, China.,The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China
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Andrés-García R, Ríos-Santos JV, Herrero-Climent M, Bullón P, Fernández-Farhall J, Gómez-Menchero A, Fernández-Palacín A, Ríos-Carrasco B. Sinus Floor Elevation via an Osteotome Technique without Biomaterials. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031103. [PMID: 33513756 PMCID: PMC7908564 DOI: 10.3390/ijerph18031103] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/20/2021] [Accepted: 01/24/2021] [Indexed: 11/16/2022]
Abstract
According to classic Hirschfeld studies, the first teeth to be lost are the first and second maxillary molars. After the teeth are extracted and the alveolar process is developed, the maxillary sinus is reabsorbed and pneumatized with a decrease in bone availability in the posterior sector of the maxilla. This process often creates the need to perform regeneration techniques for the placement of implants in this area due to the low availability of bone. The most frequently used and documented technique for the elevation of the sinus maxillary floor is elevation by the side window, as proposed by Tatum. In 1994, Summers proposed a technique that allowed the elevation of the sinus floor from a crestal access using an instrument called an osteotome, as well as the placement of the implant in the same surgical act. The aimed of the study was to evaluate the survival of 32 implants placed in posterior maxilla with bone availability less than 5 mm performing a sinus lift augmentation technique with osteotome without biomaterials. The results of this study show a survival rate of 100% for 32 implants placed in situations with an initial bone availability of 2 to 5 mm without the use of graft material. The infra-drilling technique used offers an increase in the primary stability of implants that allows adequate osteointegration Implants placed were charged at 12 weeks. In all cases, spontaneous bone formation was observed, even in cases where a positive Valsalva maneuver was observed. This proposed technique reduces treatment time and the need for more invasive maxillary sinus augmentation techniques.
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Affiliation(s)
- Rodrigo Andrés-García
- Department of Surgery, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain;
| | - José Vicente Ríos-Santos
- Department of Periodontology, School of Dentistry, Universidad de Sevilla, 41009 Sevilla, Spain; (P.B.); (A.G.-M.); (B.R.-C.)
- Correspondence: ; Tel.: +34-954-481-121; Fax: +34-954-481-157
| | | | - Pedro Bullón
- Department of Periodontology, School of Dentistry, Universidad de Sevilla, 41009 Sevilla, Spain; (P.B.); (A.G.-M.); (B.R.-C.)
| | | | - Alberto Gómez-Menchero
- Department of Periodontology, School of Dentistry, Universidad de Sevilla, 41009 Sevilla, Spain; (P.B.); (A.G.-M.); (B.R.-C.)
| | - Ana Fernández-Palacín
- Department of Social and Health Sciences, Universidad de Sevilla, 41009 Sevilla, Spain;
| | - Blanca Ríos-Carrasco
- Department of Periodontology, School of Dentistry, Universidad de Sevilla, 41009 Sevilla, Spain; (P.B.); (A.G.-M.); (B.R.-C.)
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Qian SJ, Mo JJ, Si MS, Qiao SC, Shi JY, Lai HC. Long-term outcomes of osteotome sinus floor elevation with or without bone grafting: The 10-year results of a randomized controlled trial. J Clin Periodontol 2020; 47:1016-1025. [PMID: 31976567 DOI: 10.1111/jcpe.13260] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 12/22/2019] [Accepted: 01/19/2020] [Indexed: 12/12/2022]
Abstract
AIMS To assess the long-term clinical and radiographic results of implants placed using osteotome sinus floor elevation (OSFE) with or without bone grafting. MATERIALS AND METHODS Forty-five patients were randomly assigned into two groups: Group 1 (OSFE with deproteinized bovine bone mineral) and Group 2 (OSFE without grafting). The patients were recalled at 1, 3, 5 and 10 years after surgery. The implant survival, endo-sinus bone gain (ESBG), marginal bone loss (MBL), peri-implant bone height (PBH, distance from the most coronal level to the most apical level of bone-to-implant contact), prosthesis survival and hardware complications, and peri-implant soft tissue conditions were assessed. RESULTS Forty patients attended the 10-year examination. Mean residual bone height was 4.58 ± 1.28 mm. The 10-year cumulative survival rate was 90.7% for Group 1 and 95.0% for Group 2. The PBH was 5.89 ± 1.24 mm for Group 1 and 5.74 ± 1.43 mm for Group 2 at 10 years. The ESBG of both groups remained stable after 3 years. Two-thirds of the implants were free of hardware complications. No significant differences in MBL and peri-implant tissue parameters were found. CONCLUSION OSFE with or without grafting both yielded predictable clinical outcomes with similar PBH (ClinicalTrials.gov. NCT01619956).
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Affiliation(s)
- Shu-Jiao Qian
- Department of Implant Dentistry, 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 Institue of Stomatology, Shanghai, China
| | - Jia-Ji Mo
- Department of Implant Dentistry, 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 Institue of Stomatology, Shanghai, China
| | - Mi-Si Si
- Department of Oral Implantology, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shi-Chong Qiao
- Department of Implant Dentistry, 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 Institue of Stomatology, Shanghai, China
| | - Jun-Yu Shi
- Department of Implant Dentistry, 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 Institue of Stomatology, Shanghai, China
| | - Hong-Chang Lai
- Department of Implant Dentistry, 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 Institue of Stomatology, Shanghai, China
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9
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Qian SJ, Mo JJ, Shi JY, Gu YX, Si MS, Lai HC. Endo-sinus bone formation after transalveolar sinus floor elevation without grafting with simultaneous implant placement: Histological and histomorphometric assessment in a dog model. J Clin Periodontol 2018; 45:1118-1127. [PMID: 29953634 DOI: 10.1111/jcpe.12975] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 05/17/2018] [Accepted: 06/10/2018] [Indexed: 11/27/2022]
Abstract
AIM To evaluate endo-sinus new bone formation and implant osseointegration after transalveolar sinus floor elevation (TSFE) and simultaneous implant placement without any grafting materials and to investigate the influence of implant surface modification on bone healing process under this circumstance. MATERIALS AND METHODS Transalveolar sinus floor elevation and simultaneous implant placement were conducted bilaterally on 12 Labrador dogs. No grafting materials were used during surgery. Implants with two different surfaces (SLA and SLActive) were placed in a split-mouth design. The animals were sacrificed 4, 8 and 24 weeks after surgery for histological and histomorphometric assessments. Bone-to-implant contact (BIC%), alveolar bone height (ABH) and the percentages of mineralized bone (MB%) in the area of interest were analysed. The probing depth (PD) and bleeding on probing (BOP) were also assessed to describe peri-implant health conditions. RESULTS Sprouts of new bone in direct contact with implant surface were seen in the elevated area at every time point. Newly formed woven bone under sinus membrane was visible. SLActive implants exhibited favourable results compared with SLA implants regarding ABH at 4 weeks and BIC% at 4 and 8 weeks. Sites with BOP positive could be observed in both groups at any time point. No newly formed bone can be found on the implant apex with either SLA or SLActive surfaces at any time point. CONCLUSIONS Spontaneous new bone formation from the parent bone walls could be observed after TFE without any grafting materials. No clear evidence of bone formation from the Schneiderian membrane could be found. Even though there were trends for quicker bone response of SLActive implants, this study failed to show the absolute advantage of SLActive in achieving endo-sinus bone formation.
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Affiliation(s)
- Shu-Jiao Qian
- Department of Oral Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jia-Ji Mo
- Department of Oral Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jun-Yu Shi
- Department of Oral Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Ying-Xin Gu
- Department of Oral Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Mi-Si Si
- Department of Oral Implantology, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hong-Chang Lai
- Department of Oral Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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miR-27b-3p Suppressed Osteogenic Differentiation of Maxillary Sinus Membrane Stem Cells by Targeting Sp7. IMPLANT DENT 2018; 26:492-499. [PMID: 28719571 DOI: 10.1097/id.0000000000000637] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To explore the critical role and function of miRNAs in the regulation of development and physiology of maxillary sinus membrane stem cell (MSMSC) osteogenesis. METHODS Microarray analysis was performed to screen the miRNAs expression profiles during the process of MSMSC osteogenic differentiation. Quantitative real-time polymerase chain reaction was applied to verify the miRNAs expression profiles. Gain- and loss-of-function experiments were used to demonstrate that miR-27b-3p inhibited MSMSC osteoblastic differentiation. Bioinformatic analysis was performed to predict the potential target of miR-27b-3p and then demonstrated by luciferase reporter assay and western blot. The negative regulation between miR-27b-3p and Sp7 was further confirmed using mimic and inhibitor of miR-27b-3p in vitro. Xenograft mice model was generated to confirm the relationship between miR-27b-3p and Sp7 using recombinant adenoviruses in vivo. RESULTS MiR-27b-3p was downregulated during osteogenic differentiation of MSMSCs. The expression of Sp7, alkaline phosphatase, and osteocalcin decreased when transfected with miR-27b-3p-mimic in MSMSCs after osteogenic differentiation. MiR-27b-3p directly targeted Sp7 and inhibited the MSMSC osteogenesis in vivo. CONCLUSION MiR-27b-3p suppressed the osteogenic differentiation of MSMSCs by directly inhibiting Sp7.
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Chen MH, Shi JY. Clinical and Radiological Outcomes of Implants in Osteotome Sinus Floor Elevation with and without Grafting: A Systematic Review and a Meta-Analysis. J Prosthodont 2017; 27:394-401. [PMID: 28084057 DOI: 10.1111/jopr.12576] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2016] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To systematically appraise the clinical and radiological outcomes after osteotome sinus floor elevation (OSFE) with or without grafting in the published dental literature. METHODS An electronic search was conducted using PubMed, Web of Science, and the Cochrane Central Register of Controlled Trial to identify studies after OSFE from January 1, 1994 to August 30, 2015. The primary outcome was the implant survival rates after OSFE with and without grafting materials. RESULTS After search and evaluation of the literature according to the inclusion criteria, 7 studies were included in the review. The random-effect model meta-analysis based on 463 implants in patients without grafting and 415 implants in patients with grafting showed that the risk ratio difference of survival rates was 1.010 (95%CI 0.910, 1.120), which did not reach statistical significance (p = 0.99). The membrane perforation rates ranged from 0% to 10.80%. No significant difference of crestal bone loss was reported between graft and nongraft groups. CONCLUSIONS Based on currently available evidence, OSFE techniques with and without grafting were both predictable in the short term. In addition, survival rates of dental implants in OSFE with or without grafting did not show any significant difference in the short term.
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Affiliation(s)
- Mei-Hua Chen
- Department of Periodontology, Shanghai Stomatology Hospital, Shanghai, China
| | - Jun-Yu Shi
- Department of Dental Implantation, Shanghai Ninth People's Hospital, Shanghai Key Laboratory Stomatology, Shanghai Jiaotong University, School of Medicine, Shanghai, China
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Volpe S, Colasanti U, Pagliani L. Coagulo e membrana sinusale: connubio ideale per la rigenerazione ossea all’interno dei seni mascellari. DENTAL CADMOS 2016. [DOI: 10.1016/s0011-8524(16)30063-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Si MS, Shou YW, Shi YT, Yang GL, Wang HM, He FM. Long-term outcomes of osteotome sinus floor elevation without bone grafts: a clinical retrospective study of 4-9 years. Clin Oral Implants Res 2016; 27:1392-1400. [PMID: 26754021 DOI: 10.1111/clr.12752] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Mi-si Si
- Department of Oral Implantology; Stomatology Hospital; School of Medicine; Zhejiang University; Hangzhou Zhejiang China
| | - Yi-wen Shou
- Department of Oral Implantology; Stomatology Hospital; School of Medicine; Zhejiang University; Hangzhou Zhejiang China
| | - Yi-tian Shi
- Dental Clinic; Sir Run Run Shaw Hospital; School of Medicine; Zhejiang University; Hangzhou Zhejiang China
| | - Guo-li Yang
- Department of Oral Implantology; Stomatology Hospital; School of Medicine; Zhejiang University; Hangzhou Zhejiang China
| | - Hui-ming Wang
- Department of Oral Implantology; Stomatology Hospital; School of Medicine; Zhejiang University; Hangzhou Zhejiang China
| | - Fu-ming He
- Department of Oral Implantology; Stomatology Hospital; School of Medicine; Zhejiang University; Hangzhou Zhejiang China
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Shi JY, Gu YX, Qiao SC, Zhuang LF, Zhang XM, Lai HC. Clinical evaluation of short 6-mm implants alone, short 8-mm implants combined with osteotome sinus floor elevation and standard 10-mm implants combined with osteotome sinus floor elevation in posterior maxillae: study protocol for a randomized controlled trial. Trials 2015. [PMID: 26223254 PMCID: PMC4518682 DOI: 10.1186/s13063-015-0853-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Nowadays, short dental implants are being increasingly applied in extremely resorbed posterior regions. The recent studies have indicated that short implants present a similar success rate to conventional implants. It is assumed that short implants can avoid additional surgical morbidity and are less technically demanding. However, high-quality evidence (≥Ib: evidence from at least one randomized controlled trial) on comparing the clinical outcome of short implants and longer implants combined with osteotome sinus floor elevation (OSFE) technique is limited. Methods/Design The proposed study is designed as a prospective single-center, three-arm parallel group, randomized controlled trial. We plan to enroll 150 patients in need of dental implant treatment in the posterior maxilla. The inclusion criteria include: age ≧18 years, partial edentulism in the posterior maxilla for at least 3 months from tooth loss, residual bone height ranging from 6 to 8 mm, sufficient bone width (≥6 mm) in the edentulous region. The patients will be divided into three groups according to a table of random numbers: group 1: short implants (6 mm) alone; group 2: short implants (8 mm) combined with osteotome sinus floor elevation (OSFE); group 3: standard implants (10 mm) combined with OSFE. The assignment will be concealed from the clinical operators until the beginning of implant surgery. The outcome examiners and patients will be kept blinded to the assignment. Implant survival rates, implant success rates, complications, resonance frequency analysis (RFA) measurements, marginal bone level, treatment time and patient-reported outcome (visual analogue scale for intraoperative discomfort and postoperative pain) will be recorded. Clinical re-evaluations will be performed at 12, 24, 36 and 60 months after crown placement. Discussion The results of the trial will support better decision-making for dental implant treatment in atrophic maxillary ridges. If favorable, the use of short implants may avoid adjunct procedures used for implant insertion, thus reducing operative time, complexity and postoperative discomfort. Trial registration Clinicaltrials.gov identifier: NCT02350075 (registered on 17 February 2015).
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Affiliation(s)
- Jun-Yu Shi
- Department of Oral and Maxillofacial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Ying-Xin Gu
- Department of Oral and Maxillofacial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Shi-Chong Qiao
- Department of Oral and Maxillofacial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Long-Fei Zhuang
- Department of Oral and Maxillofacial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Xiao-Meng Zhang
- Department of Oral and Maxillofacial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Hong-Chang Lai
- Department of Oral and Maxillofacial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
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Nedir R, Nurdin N, Vazquez L, Abi Najm S, Bischof M. Osteotome Sinus Floor Elevation without Grafting: A 10-Year Prospective Study. Clin Implant Dent Relat Res 2015; 18:609-17. [DOI: 10.1111/cid.12331] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rabah Nedir
- Swiss Dental Clinics Group; Ardentis Clinique Dentaire; Vevey Switzerland
| | - Nathalie Nurdin
- Swiss Dental Clinics Group; Ardentis Clinique Dentaire; Vevey Switzerland
| | - Lydia Vazquez
- Department of Orofacial Rehabilitation, Oral and Maxillofacial Radiology; University Clinics of Dental Medicine; University of Geneva; Geneva Switzerland
| | - Semaan Abi Najm
- Swiss Dental Clinics Group; Ardentis Clinique Dentaire; Geneva Switzerland
- Department of Oral and Maxillofacial Surgery; Oral Surgery and Implantology Unit; Geneva University Hospitals; Geneva Switzerland
| | - Mark Bischof
- Swiss Dental Clinics Group; Ardentis Clinique Dentaire; Lausanne Switzerland
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