Bone Volume Changes After Sinus Floor Augmentation with Heterogenous Graft.

Abstract

The aim of this study was to evaluate the volumetric stability of deproteinized bovine bone after sinus augmentation, using cone beam computed tomography (CBCT) and three-dimensional (3D) analysis. Using a specific selection tool and 3D reconstruction from InVesalius 3.0, volumetric analysis of CBCT scans was performed in patients undergoing a sinus elevation technique in critical defects, using deproteinized bovine bone. The first scan was performed immediately after graft surgery (T1), and the second was performed 8 months after graft surgery (T2). A total of 13 patients met the inclusion criteria of this retrospective study; 26 postoperative CBCT scans were analyzed for these patients. All patients exhibited an increase in bone volume (9.10%). The mean bone volume increase from T1 to T2 was 0.137 cm(3) (SD: ± 0.104 cm(3)). There was a statistically significant correlation between bone volume and time (P < .0001). The mean bone volume was 1.506 cm(3) (SD: ± 0.473 cm(3)) for T1 and 1.644 cm(3) (SD: ± 0.506 cm(3)) for T2. Within the limited sample, the study demonstrated an increase in graft volume after sinus elevation with deproteinized bovine bone in critical defects.