title: Sinus floor elevation using an osteotome technique without grafting materials or membranes.
abstract: This retrospective study aimed to radiographically assess sinus floor remodeling after using a modified osteotome technique without graft materials or membranes. After pilot drilling, residual bone was fractured and raised with the schneiderian membrane to the final implant length using osteotomes. Self-tapping implants were placed, and restorations were placed 6 months later. Twenty-four patients were available for follow-up after a mean observation period of 17.6 +/- 8.4 months. The implant survival rate at that time was 100%. Bone filling around the implants was measured and compared with baseline digital radiographs. New bone formation was 86.3% +/- 22.1% mesially and 89.7% +/- 13.3% distally. In nine cases, digital volume tomography was used to verify regeneration. Within the limitations of this study, use of the schneiderian membrane led to considerable bone regeneration, and good clinical success was achieved despite the omission of graft materials.
authors: Clinic for Preventive Dentistry, Periodontology and Cariology, Dental Institute, University of Zurich, Plattenstrasse 11, 8028 Zürich, Switzerland. patrick.schmidlin@zzmk.uzh.ch
authors: Patrick R
authors: PR
authors: Schmidlin
authors: Jakob
authors: J
authors: Müller
authors: Andreas
authors: A
authors: Bindl
authors: Homas
authors: H
authors: Imfeld
mesh_terms: D000539:Alveolar Process / Q000000981:diagnostic imaging; D001861:Bone Regeneration / Q000502:physiology; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery*; D008443:Maxillary Sinus / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D016348:Osseointegration / Q000502:physiology; D010012:Osteogenesis / Q000502:physiology; D010027:Osteotomy / Q000295:instrumentation / Q000379:methods*; D019252:Radiography, Dental, Digital; D020545:Respiratory Mucosa / Q000000981:diagnostic imaging / Q000473:pathology; D012189:Retrospective Studies; D016019:Survival Analysis
chemical_list: D015921:Dental Implants