Alveolar Ridge Preservation Using Tridimensional Collagen Matrix and Deproteinized Bovine Bone Mineral in the Esthetic Area: A CBCT and Histologic Human Pilot Study

: Alveolar ridge preservation is of great importance for successful implant therapy. This study investigated the effects of a xenogeneic tridimensional collagen matrix (CM) in conjunction with deproteinized bovine bone mineral blended with 10% collagen (DBBM-C) on the healing of 12 intact extraction sockets in the esthetic area. Cone beam computed tomograpy examinations revealed nearly stable alveolar ridge dimensions (> 90% of the ridge horizontal dimension was preserved). New bone formation of approximately 45% and adequate resorption of the grafted material were histologically observed. Thus, application of CM together with DBBM-C using minimally invasive flapless approach can preserve the original ridge volume and support bone formation, contributing to adequate bone volume for implant insertion.