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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 31 (2016), No. 3     13. May 2016
Int J Oral Maxillofac Implants 31 (2016), No. 3  (13.05.2016)

Page 665-671, doi:10.11607/jomi.3948, PubMed:27183076

Bone Volume Changes After Sinus Floor Augmentation with Heterogenous Graft
Klein, Gustavo Batista Grolli / Curvello, Victor Prado / Dutra, Rodrigo Aliprandi / Simeão, Sandra Penteado / dos Santos, Pamela Leticia / Gulinelli, Jéssica Lemos / Filho, Hugo Nary
Purpose: 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.
Materials and Methods: 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).
Results: 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 cm3 (SD: ± 0.104 cm3). There was a statistically significant correlation between bone volume and time (P < .0001). The mean bone volume was 1.506 cm3 (SD: ± 0.473 cm3) for T1 and 1.644 cm3 (SD: ± 0.506 cm3) for T2.
Conclusion: Within the limited sample, the study demonstrated an increase in graft volume after sinus elevation with deproteinized bovine bone in critical defects.

Keywords: Bio-Oss, bone grafting, cone beam CT scan, dental implants, maxillary sinus