title: Horizontal osteotomy for reconstruction of the narrow edentulous mandible.
abstract: The aim of this retrospective study was to evaluate the applicability of a horizontal osteotomy procedure for reconstruction of a narrow edentulous mandible in order to enable insertion of implants. In 7 edentulous patients a narrow inferior alveolar ridge was reconstructed with autogenous bone grafts harvested by a horizontal osteotomy procedure (mean width of the top of the alveolar crest before grafting 1.3 +/- 0.3 mm, after grafting 5.6 +/- 0.6 mm). Insertion of endosseous implants (10 Brånemark implants, 8 ITI Bonefit implants) was performed 3 months after the grafting procedure. Implant supported overdentures were fabricated 3 months after implantation. At regular time intervals a standardized clinical and a radiographic evaluation was performed. All grafted sites showed sufficient bone volume for insertion of the implants at the moment of implantation. At time of evaluation (mean 37 +/- 14.6 months, range 14-68 months) all implants and overdentures functioned well. None of the patients showed a disturbed sensitivity of the lip or chin region. It is concluded that reconstruction of a narrow edentulous mandible with autogenous bone grafts harvested by an intraoral horizontal osteotomy was shown to be a reliable preimplantology procedure with potential applicability in this group of patients.
authors.affiliation: Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
authors.forename: G M
authors.initials: GM
authors.lastname: Raghoebar
authors.forename: R H
authors.initials: RH
authors.lastname: Batenburg
authors.forename: H J
authors.initials: HJ
authors.lastname: Meijer
authors.forename: A
authors.initials: A
authors.lastname: Vissink
mesh_terms: D000328:Adult; D000368:Aged; D000539:Alveolar Process / Q000637:transplantation*; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D016025:Bone Transplantation / Q000379:methods*; D003758:Dental Implantation, Endosseous; D003828:Denture, Overlay; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery; D008875:Middle Aged; D010027:Osteotomy / Q000379:methods; D012189:Retrospective Studies; D016896:Treatment Outcome