Authors
Nedir R., Nurdin N.,Szmukler-Moncler S., Bischof M.
Title
Osteotome sinus floor elevation technique without grafting material and immediate implant placement in the atrophic posterior maxilla: report of two cases.
Journal
Journal of Oral and Maxillofacial Surgery 67:1098-1103, 2009
Abstract
ABSTRACT This case report deals with two patients that required implant placement in the atrophic posterior maxilla to support a fixed prosthesis with the less invasive and promptest procedure. The gold standard of care would be to perform a sinus augmentation with an autologous bone graft through the lateral approach with delayed implant placement. However, in these cases, the posterior maxillae were treated with an osteotome sinus floor elevation procedure without grafting material, and simultaneous placement of short, 8 and 10 mm long, tapered implants. All implants achieved primary stability and were successfully loaded after 3.6 months of healing. At the 1- and 2-year control, they were clinically stable and the final prostheses were in function. The mean endo-sinus bone gain was 5.1 ± 1.3 mm; in one of the patients, the implants were completely embedded in the newly formed bone and the sinus floor had been relocated apical to its previous demarcation. These two cases suggest that the osteotome sinus floor elevation procedure without grafting material, and immediate placement of tapered implants, might be applied in situations where only the lateral approach was previously considered (as far as implants can achieve a firm primary stability). More patients and longer follow-ups are warranted to investigate how reliable can be this technique when it is applied to the atrophic maxilla.
Keywords
Dental implants, osteotome, sinus lift, grafting material, posterior atrophic maxilla, endo-sinus bone gain.
