Onlay Bone Graft Augmentation for the Treatment of Maxillary Atrophy.

Objective: The aim of the present retrospective study was to evaluate the long-term survival rate of dental implants placed in autologous onlay bone block graft (AOBG) augmentation areas, harvested from intraoral origin, used for reconstruction of maxillary atrophy. Patients and methods: A retrospective study was conducted on 108 patients, who received a total of 272 dental implants placed in 109 maxillary augmentation sites using AOBG in combination with platelet-rich plasma (PRP) and bovine bone substitute material, covered with platelet-poor plasma (PPP). Results: Of the 109 OBGs performed from 2000 to 2010, 108 (99.1%) were deemed "successful." Of the total implants, the great majority (94.5%) was deemed to have survived. The total implants' 10-year cumulative survival rate was 89%, compared to 99% in the anterior maxillary area. Conclusions: We suggest that reconstruction of maxillary atrophy, through horizontal and vertical intraoral AOBG, in combination with bovine bone substitute material and PRP and covered by PPP, should be considered a reliable, safe, and very effective method to obtain a high rate of bone graft survival following a high rate of long-term implant survival. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Cosmetic Dentistry is the property of American Academy of Cosmetic Dentistry and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)