Linear and volumetric gain after vertical bone augmentation in the posterior mandible using an autologous cortical tenting method.

Autor: Novy LFS; Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil., Aguiar EG; Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil., de Arruda JAA; Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil., de Castro MAA; Life Sciences Institute, Department of Dentistry, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brazil., Moreira AN; Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil., Dos Santos EG; Department of Business, Paulista School of Politics, Economics and Business, Universidade Federal de São Paulo, Osasco, SP, Brazil., de Magalhães CS; Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil., Moreno A; Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil. Electronic address: amalia_moreno@yahoo.com.br.
Jazyk: angličtina
Zdroj: International journal of oral and maxillofacial surgery [Int J Oral Maxillofac Surg] 2019 Nov; Vol. 48 (11), pp. 1485-1491. Date of Electronic Publication: 2019 May 11.
DOI: 10.1016/j.ijom.2019.04.011
Abstrakt: 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 3.412mm 3 , and 77% of the subjects showed an average graft resorption of 0.688mm 3 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.
(Copyright © 2019 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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