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Volume 14 , Issue 5
September/October 1999

Pages 707721

Maxillary Antral-Nasal Inlay Autogenous Bone Graft Reconstruction of Compromised Maxilla: A 12-Year Retrospective Study

Eugene E. Keller, DDS, MSD, Dan E. Tolman, DDS, MSD, Steven E. Eckert, DDS

PMID: 10531743

During a 12-year period (19841996), 118 maxillary inlay autogenous bone grafts and 248 commercially pure titanium threaded root-form endosseous implants were placed in 54 consecutively treated patients with compromised maxillary bone. In this retrospective clinical study, 3 groups of patients were reviewed, group selection being based on anatomic location and surgical access to the recipient site. Group 1 included patients with bone grafts placed in the antrum floor via an intraoral antrostomy exposure, group 2 included patients with bone grafts placed in the nasal floor via an anterior intraoral nasotomy exposure, and group 3 included patients with bone grafts placed in the antral and nasal floor via an intraoral Le Fort I osteotomy downfracture exposure. Each patient received an implant-supported dental prosthesis. For the combined 3 groups, survival rates were 87% for endosseous implants and 100% for autogenous bone grafts. The success rate for the dental prostheses in the 3 groups was 95%. Sixty-nine dental prostheses functioned a mean of 57.1 months, whereas 3 prostheses required remaking because of implant loss. Of the medical and mechanical risk factors tabulated in this study, current use of nicotine, history of sinusitis, molar site implant placement, and shorter implant lengths had the most influence on implant failure. (Int J Oral Maxillofac Implants 1999;14:707721) Key words: atrophic maxilla, autogenous bone graft, endosseous implants

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