Measurement of volume changes after sinus floor augmentation with a phycogenic hydroxyapatite.

摘要: PURPOSE The purpose of this study was the determination time-dependent volumetric changes particulate sinus inlay grafts. A mixture phycogenic hydroxyapatite (Algipore/C-Graft) and autologous bone collected from surgical access area used as grafting material. MATERIALS AND METHODS Thirty-three floor augmentations using combined with at augmentation site venous blood were performed on 18 patients aged 57.4 +/- 12.5 years (mean SD) severe atrophy posterior maxilla. Graft volume measured 1 to 14 days postoperatively before placement dental implants 6.1 2.1 months later SD; range, 4 11 months) evaluate amount resorption implanted material computerized tomographic (CT) images augmented region. put into Digital Imaging Communications in Medicine (DICOM) format evaluated software library Analyze. replacement plotted manually each CT slice, calculated. RESULTS average loss during observation period 13.9% 1.9% SEM). All healed without complications except for delayed membrane exposure 2 cases. DISCUSSION results indicate that graft material, a Algipore, chips area, blood, exhibited small over approximately 6 months, thus providing predictable height second-stage implant surgery. CONCLUSION Further investigations are needed long-term stability success.