COMPARISON OF THE OUTCOMES OF GBR SIMULTANEOUS WITH DENTAL IMPLANTS IN THE ESTHETIC ZONE USING TWO DIFFERENT MEMBRANES

Abstract

Objective: To compare the outcomes of the synthetic membrane and collagen membrane using for implant placement with GBR. Materials and Methods: a total of 60 dental implants in esthetic zone were enrolled in this study and randomly allocated to a simultaneous GBR using either synthetic resorbable membrane in study group (n=30) or a collagen resorbable membrane in comparison group (n=30). Clinical outcomes were assessed by the width of keratinized mucosa (KM). The stability of contour augmentation was analyzed by a facial bone thickness (FBT) using a cone beam computed tomographic (CBCT) image and the distance between the implant shoulder and the first bone-implant contact (DIB) using periapical film over 6 months. Results: The mean change of KM and FBT change were similar decreased in both groups. However, the statistical significant difference was found between groups for only the DIB value change at mesial aspects (p=0.017). All implants were stable with existing facial bone and no implant loss was found over this study. Conclusion: A synthetic resorbable membrane revealed similar outcomes to collagen resorbable membrane and suitable used for GBR simultaneous with dental implant placement.