Intraoral Onlay Bone Grafting for Extensive Atrophic Maxillary Reconstruction

Background: An endosseous implant requires sufficient bone volume for complete bone coverage. Alveolar deficiency can prevent ideal implant placement. Local bone grafts are a convenient source of autogenous bone in alveolar reconstruction. Objective: to describe a technique and to evaluate the success of extensive bone reconstruction of atrophic maxillary alveolar ridges using only intraoral block bone graft prior to dental implantation. Methods: Files of 10 healthy patients with extensive bone reconstruction of the maxillary alveolar ridge using intraoral block bone graft operations were reviewed. Medical history, smoking status, bone origin (donor sites), number of bone blocks, and complications were recorded. Results: Of the 10 extensive bone maxillary reconstructions, 4 were uneventful, 2 required additional bone augmentation at time of dental implant placement, 2 had a minimal graft exposure, one had a minor adverse effect - temporary paresthesia; and one operation partially failed and required partial graft removal. Conclusions: Intraoral bone block graft is a predictable operation with a high success rate for long span augmentation, up to complete jaw augmentation/extensive bone reconstruction of the maxillary alveolar ridge.