title: Postoperative tomographic assessment of veneer bone grafting with implant placement in the maxillary anterior region.
abstract: Various ridge augmentation and sinus lift procedures were performed in severely resorbed alveolar crests of a maxilla to provide some volume for implant treatment. It was reported that the outcome of maxillary sinus lift procedures was evaluated with conventional tomography or computerized tomography, and that grafted bone around implants markedly progressed in resorption, particularly at the implant apex. However, veneer bone grafting with implant placement has not been evaluated after treatment with imaging techniques. Therefore, the purpose of this study was to assess veneer bone grafting after maxillary anterior implant treatment. Seven patients with a mean age of 24 years, with implants placed in the maxillary anterior region with or without autogenous veneer bone grafting were postoperatively examined using conventional tomography. On tomograms, the ratio of bone-to-implant contact and the area of bone were measured in labial bones with bone grafts, and they were compared with the values without bone grafts. In cases with bone grafting, the average ratio of bone-to-implant contact was 63.6%, whereas 81.8% was formed in cases without bone grafting. The average area of bone was 12.9 mm and 23.4 mm in patients with and without bone grafting, respectively. No significant difference was found between the implants with and without bone grafts. Resorbed labial bone was observed in the maxillary anterior region with and without veneer bone grafting.
authors.affiliation: Department of Oral and Maxillofacial Radiology, School of Dentistry, Aichi-Gakuin University, 2-11 Suemori-Dori, Chukusa-Ku, Nagoya 464-8651, Japan. mune@dpc.aichi-gakuin.ac.jp
authors.forename: Munetaka
authors.initials: M
authors.lastname: Naitoh
authors.forename: Karl
authors.initials: K
authors.lastname: Dula
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Ito
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Toyoda
authors.forename: Kenichi
authors.initials: K
authors.lastname: Kurita
authors.forename: Eiichiro
authors.initials: E
authors.lastname: Ariji
mesh_terms: D000293:Adolescent; D000328:Adult; D000539:Alveolar Process / Q000000981:diagnostic imaging; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D001862:Bone Resorption / Q000601:surgery; D016025:Bone Transplantation / Q000000981:diagnostic imaging*; D015921:Dental Implants; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery*; D008439:Maxillary Diseases / Q000601:surgery; D016348:Osseointegration / Q000502:physiology; D011182:Postoperative Care; D012189:Retrospective Studies; D014056:Tomography, X-Ray
chemical_list: D015921:Dental Implants