title: Pre-operative evaluation of the volume of bone graft in sinus lifts by means of CompuDent.
abstract: OBJECTIVE
  This study aims to evaluate the usefulness of the CompuDent program in determining the pre-operative volume of bone graft in maxillary sinus floor lifts, and to calculate the volume of graft necessary for rehabilitation using varying lengths of implants.
  
  
  METHODS
  Based on the CompuDent program, we calculated the volume of graft necessary for 47 sinus lifts. This volume was measured in order to raise the floor of each sinus to 13.4 and 15 mm in height.
  
  
  RESULTS
  The average volume of graft in order to achieve a lift of 13'4 mm was 2.42 cm(3) for the right maxillary sinus, with a range from 1.4 cm(3) to 4.1 cm(3), and 2.50 cm(3) for the left maxillary sinus, with a range from 1.04 cm(3) to 3.79 cm(3). The average volume of graft in order to achieve a lift of 15 mm was 3.01 cm(3) for the right maxillary sinus, with a range from 1.78 cm(3) to 4.59 cm(3), and 3.09 cm(3) for the left maxillary sinus, with a range from 1.42 cm(3) to 4.49 cm(3). The statistical results provided by the Pearson Correlation show a significant inversely proportional correlation between the average of the heights and the volume of graft in the sinus. In addition, there is a clear correlation between the average volumes to be grafted for the respective heights 13.4 mm and 15 mm.
  
  
  CONCLUSIONS
  The CompuDent program is an effective tool in determining the volume of bone graft given its simplicity, rapidness and possibility of standardization in all pre-surgical procedures.
authors.affiliation: Department of Oral Facial and Implant Surgery at Madrid Hospital, Spain. dentoscar@hotmail.com
authors.forename: Oscar
authors.initials: O
authors.lastname: Arias-Irimia
authors.forename: Cristina
authors.initials: C
authors.lastname: Barona-Dorado
authors.forename: Natalia
authors.initials: N
authors.lastname: Martínez-Rodríguez
authors.forename: Ricardo
authors.initials: R
authors.lastname: Ortega-Aranegui
authors.forename: José Ma
authors.initials: JM
authors.lastname: Martínez-González
mesh_terms: D000328:Adult; D000368:Aged; D016025:Bone Transplantation / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging* / Q000601:surgery*; D008875:Middle Aged; D011300:Preoperative Care; D012984:Software; D014057:Tomography, X-Ray Computed