Análise comparativa da regeneração óssea de extrações com e sem utilização da membrana de polipropileno.

Abstract

Introduction: The preservation of alveolar ridge after exodontia it’s a big challenge for dental medicine, especially when there are extensive losses that make future rehabilitation difficult. The quantity and quality of bone collar should be analyzed prior to the installation of the implants, with the aid of tomographic examination. Objective: To analyze the gain and loss of bone structure during the alveolar repair process. Methods: Twelve patients participated in the study, and were divided equally into two groups. In group 1 (without membrane) dental extractions were performed and the alveolus was sutured. In group 2 (with membrane) the same procedures were performed, however, with the use of the polypropylene membrane. Both groups were submitted to cone beam radiography, for analysis of the healing process, immediately after the procedure and after 90 days. The regions of third molars and patients with bone loss due to periodontal disease were considered as exclusion factors; as inclusion factor, were considered areas that were passive of rehabilitation. Results: Through the analysis of variance, a significant difference was found between the groups, F (1, 10) = 31.89, p <0.01 in relation to bone loss in millimeters, and the membrane group presented lower bone loss. Conclusion: The use of the BoneHeal® polypropylene membrane contributed to the maintenance of alveolar ridges and reduced bone loss.