title: Bone grafting of the floor of the maxillary sinus for the placement of endosseous implants.
abstract: This study describes and evaluates a technique to augment the floor of the maxillary sinus and to widen the alveolar crest of the atrophic posterior maxilla with autogenous bone. The subjects were 43 patients whose maxillary alveolar crest was not high enough to permit reliable placement of endosseous implants in the posterior maxilla. Large autogenous cancellous bone grafts (n = 37) or smaller grafts from the mandibular symphyseal area (n = 5) or the maxillary tuberosity (n = 1) were harvested. The operations were done in either one stage (n = 20 patients, 36 sinuses) or two (bone grafting followed by placement of implants, n = 23, 45 sinuses). In 28 cases the sinus membrane was perforated with no subsequent problems. Nine of the 171 Brånemark implants that were inserted were lost during follow-up (mean 26 months, range 8-62 months). Augmentation of the maxillary sinus with autogenous bone is a reliable way of achieving placement of an implant.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Hospital Groningen, The Netherlands.
authors.forename: G M
authors.initials: GM
authors.lastname: Raghoebar
authors.forename: A
authors.initials: A
authors.lastname: Vissink
authors.forename: H
authors.initials: H
authors.lastname: Reintsema
authors.forename: R H
authors.initials: RH
authors.lastname: Batenburg
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000540:Alveolar Ridge Augmentation / Q000009:adverse effects / Q000379:methods; D000543:Alveoloplasty / Q000009:adverse effects / Q000379:methods; D001284:Atrophy; D016025:Bone Transplantation / Q000009:adverse effects; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008437:Maxilla / Q000473:pathology / Q000601:surgery*; D008443:Maxillary Sinus / Q000293:injuries / Q000601:surgery*; D008875:Middle Aged; D009092:Mucous Membrane / Q000293:injuries; D015203:Reproducibility of Results; D014182:Transplantation, Autologous
chemical_list: D015921:Dental Implants