title: Bone Volume Changes After Sinus Floor Augmentation with Heterogenous Graft.
abstract: OBJECTIVE
  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.
  
  
  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 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.
  
  
  CONCLUSIONS
  Within the limited sample, the study demonstrated an increase in graft volume after sinus elevation with deproteinized bovine bone in critical defects.
authors.forename: Gustavo Grolli
authors.initials: GG
authors.lastname: Klein
authors.forename: Victor Prado
authors.initials: VP
authors.lastname: Curvello
authors.forename: Rodrigo Aliprandi
authors.initials: RA
authors.lastname: Dutra
authors.forename: Sandra Penteado
authors.initials: SP
authors.lastname: Simeão
authors.forename: Pamela Leticia
authors.initials: PL
authors.lastname: Santos
authors.forename: Jéssica Lemos
authors.initials: JL
authors.lastname: Gulinelli
authors.forename: Hugo Nary
authors.initials: HN
authors.lastname: Filho
mesh_terms: D000328:Adult; D000818:Animals; D016025:Bone Transplantation / Q000379:methods*; D002417:Cattle; D054893:Cone-Beam Computed Tomography / Q000379:methods; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D008443:Maxillary Sinus / Q000601:surgery*; D008875:Middle Aged; D009066:Mouth, Edentulous / Q000534:rehabilitation*; D012189:Retrospective Studies; D059546:Sinus Floor Augmentation / Q000379:methods*; D014183:Transplantation, Heterologous