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Volume 13 , Issue 6
November/December 1998

Pages 767780

Endosseous Implant and Autogenous Bone Graft Reconstruction of Mandibular Discontinuity: A 12-Year Longitudinal Study of 31 Patients

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

PMID: 9857587

Surgical, medical, and prosthodontic records of 61 consecutively treated patients with mandibular discontinuity were reviewed retrospectively. All 61 patients had undergone discontinuity reconstruction with autogenous bone grafts; 31 of 61 had also received endosseous dental implants and a dental osseoprosthesis. Of these 31 implant-reconstructed patients, 23 had free autogenous nonvascularized and 8 had vascularized bone grafts. The surgical-prosthetic protocol consisted primarily of secondary, free autogenous nonvascularized bone graft reconstruction and secondary root-form endosseous implant and fixed prosthesis dental reconstruction. Vascularized bone (8 patients) or soft tissue (4 patients) grafts were utilized selectively for severely compromised patients after extensive oncologic resection, avulsive trauma, or after previous radiation treatment. Endosseous implant survival (95.5% in 31 patients), autogenous bone graft success (98.4% in 61 patients), and dental osseoprosthesis success (100% in 31 patients) were favorable. A high incidence (9.1%) of nonfunctioning (sleeping) implants was recorded for this patient population. The need to remove the titanium mesh tray for various reasons (17.6%) and the need to reconstruct soft tissue in the irradiated patient (12%) were noteworthy. (INT J ORAL MAXILLOFAC IMPLANTS 1998;13:767780) Key words: autogenous bone graft, discontinuity defect, endosseous implant, nonvascular, prosthesis, radiation, reconstruction, vascular

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