Linear and volumetric gain after vertical bone augmentation in the posterior mandible using an autologous cortical tenting method |
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| Affiliation: | 1. Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil;2. Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil;3. Life Sciences Institute, Department of Dentistry, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brazil;4. Department of Business, Paulista School of Politics, Economics and Business, Universidade Federal de São Paulo, Osasco, SP, Brazil;1. Graduate Programme in Clinical Dentistry, Positivo University, Curitiba, Paraná, Brazil;2. Department of Stomatology, School of Dentistry, Federal University of Paraná, UFPR, Paraná, Brazil;1. Maxillofacial Surgery Unit, Azienda Ospedaliero, University of Udine, Udine, Italy;2. Department of Medical and Biological Science, University of Udine, Udine, Italy;1. School of Dentistry, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile;2. Institute of Pharmacy, Faculty of Sciences, Universidad Austral de Chile, Valdivia, Chile;3. Faculty of Dentistry, Universidad San Sebastián, Santiago, Chile;4. Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil;5. School of Dentistry, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, RM, Chile;6. Pharmacology and Toxicology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, RM, Chile;1. D Implant Institute, Munich, Germany; Extraordinary Professor for Oral & Maxillofacial Surgery, University of Marburg, Germany;2. Private practice for orthodontics, Munich, Germany;3. Department of Prosthodontics, DPU University, Vienna, Austria;4. Clinic for Oral & Maxillofacial Surgery, University of Marburg, Germany;1. Master''s Degree Candidate, The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hu Bei, China;2. Master''s Degree Candidate, The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hu Bei, China;3. Professor, State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China;4. Associate Professor, The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hu Bei, China |
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| Abstract: | This study was performed to evaluate the linear and volumetric effects of a technique for reconstruction of the posterior atrophic mandible, including the final bone gain of the graft, by three-dimensional assessment. Thirteen individuals were recruited into the study and submitted to a total of 15 mandibular autogenous bone block surgeries. Cone beam computed tomography images were obtained at three different times. Bone graft length and thickness, and the volume, height, and width of the graft were measured. Data were compared statistically among the time points using the Friedman test, and cluster analysis was performed to identify the association between the study variables and the resorption rate (α = 0.05). Linear analysis of the width and height of the recipient area at the different time points revealed a statistically significant difference. The final average increase in height was 1.6 mm; all subjects showed an average volume gain of 3.412 mm3, and 77% of the subjects showed an average graft resorption of 0.688 mm3 construction of three-dimensional vertical defects of the posterior mandible resulted in good healing with minimal complications and minimal bone graft resorption, favouring vertical bone gain. |
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| Keywords: | bone transplantation bone regeneration cone beam computed tomography mandible |
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