title: Enhancement cone beam computed tomography filters improve in vitro periimplant dehiscence detection.
abstract: OBJECTIVE
  To investigate whether cone beam computed tomography filters would improve periimplant dehiscence detection.
  
  
  METHODS
  A hundred titanium implants were placed in bovine ribs in which defects simulating periimplant dehiscence had previously been created. After images acquisition, three oral radiologists assessed them with and without the following filters: Angio Sharpen high 5 × 5, Shadow, Sharpen 3 × 3, Sharpen Mild, and Smooth. The McNemar test verified the disagreement between all images versus the reference standard and original images versus images with filters; P < .05 was considered statistically significant.
  
  
  RESULTS
  Dehiscence detection using the original images and the Shadow filter disagreed from the reference standard (P < .05), as well as when using the filters instead of the original images (P < .05).
  
  
  CONCLUSIONS
  All the filters tested, with the exception of the Shadow, improved periimplant dehiscence detection. The Sharpen 3 × 3 filter was considered best for this task.
authors.affiliation: Department of Clinical Dentistry, School of Dentistry, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil. Electronic address: sergiolinsv@gmail.com.
authors.forename: Sergio Lins
authors.initials: SL
authors.lastname: de-Azevedo-Vaz
authors.forename: Phillipe Nogueira Barbosa
authors.initials: PN
authors.lastname: Alencar
authors.forename: Karla
authors.initials: K
authors.lastname: Rovaris
authors.forename: Paulo Sérgio Flores
authors.initials: PS
authors.lastname: Campos
authors.forename: Francisco
authors.initials: F
authors.lastname: Haiter-Neto
mesh_terms: D000818:Animals; D002417:Cattle; D054893:Cone-Beam Computed Tomography; D015921:Dental Implants; D012272:Ribs / Q000000981:diagnostic imaging / Q000601:surgery; D013529:Surgical Wound Dehiscence / Q000000981:diagnostic imaging*; D014025:Titanium
chemical_list: D015921:Dental Implants; D014025:Titanium