Preservação alveolar com pôntico ovóide provisório: um estudo clínico-tomográfico controlado e randomizado

Abstract

Tissue remodeling occurs in sockets after tooth extraction, compromising the functional and aesthetic rehabilitation of the patient. The aim of this study was to evaluate the efficacy of the sealing technique with provisional pontic ovoid for ridge preservation compared with two other standard techniques. Thirty patients were selected and divided into three groups according to the used ridge preservation technique: Group 1: closure with palatal pedicle flap; Group 2: association of synthetic bone substitute and closure with palatal pedicle flap; Group 3: sealing the margins of the socket with a provisional ovoid pontic. Plaster casts and cone-beam computed tomography (CBCT) exams performed before the surgeries and at immediate postoperatively, respectively, and repeated after four months, were used to compare socket remodeling. The results demonstrated horizontal bone remodeling in all groups with similar results noted among all groups. However, the three techniques were able to maintain the vertical dimensions of the ridge over the four-month period without significant statistical diferences among them. It is concluded that the proposed technique involving provisional ovoid pontic is effective in ridge preservation, once it presented similar results to previously established techniques, besides generating lower morbidity, lower cost and being easily reproducible.