Alveolar ridge preservation in maxillary anterior region using Bio-Oss Collagen and platelet-rich fibrin

Objective: To evaluate the effects of Bio-Oss Collagen and platelet-rich fibrin(PRF) in maxillary anterior region for ridge preservation. Methods: From July 2006 to January 2010,42 teeth in maxillary anterior region of 36 patients were extracted and treated with Bio-Oss Collagen and PRF immediately. Implantation and restoration were completed subsequently. Data of clinical and radiographic examinations were collected during the follow-up period ranged from 3 to 48 months. Results: Early implant placement was applied in 5 of the 42 sites,and delayed implant placement in the other 37 sites. Implants were directly placed in 21 of 42 sites,implants with connective tissue grafts were placed in 7 sites,implants with GBR were placed in 14 sites. The gingival papilla index was 2. 8 on average,the marginal bone resorption was 0. 27mm on average,and implantation success rate was 100%. Conclusion:Bio-Oss Collagen combined with platelet-rich fibrin is effective in the ridge preservation in maxillary anterior region in short term follow-up.