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Volume 22 , Issue 4
July/August 2007

Pages 603608

Endosseous Implants and Bone Augmentation in the Partially Dentate Maxilla: An Analysis of 17 Patients with a Follow-up of 29 to 101 Months

Jonas P. Becktor, DDS, PhD / Sten Isaksson, MD, DDS, PhD / Lars Sennerby, DDS, PhD

PMID: 17929521

Purpose: The aim of this study was to analyze the survival rate of endosseous implants placed in the partially dentate maxilla treated with sinus inlay block bone grafts. Materials and Methods: Seventeen patients were subjected to bone augmentation procedures prior to or in conjunction with implant placement. Bone volumes were regarded as insufficient for implant treatment unless a bone grafting procedure was performed. The patients were treated with sinus inlay block bone grafts and endosseous implants in a 1- or 2-stage procedure. A total of 69 implants were placed in the patients who were followed for 29 to 101 months (mean, 53.1 months). The retrospective patient group was also prospectively followed using a standardized clinical and radiographic study design. Results: The implant survival rate was 91.3% (63/69). All implants were lost during the period from abutment connection to connection of the definitive prosthesis. All bone grafts were stable. Bone grafts supported 48 implants, of which 5 failed (10.4%). In the residual bone, 21 implants were placed, of which 1 failed (4.8%). All patients received a fixed partial prosthesis, which was stable during the follow-up period. Conclusion: The results of this investigation revealed a satisfactory clinical outcome of implant placement in grafted partially dentate maxillae after a mean follow-up of 53.1 months. Int J Oral Maxillofac Implants 2007; 22:603608

Key words: bone augmentation, bone graft, dental implants, endosseous implants, maxillary sinus, partially dentate maxillae

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