Detection of periimplant fenestration and dehiscence with the use of two scan modes and the smallest voxel sizes of a cone-beam computed tomography device

Sergio Lins De-Azevedo-Vaz, Karla De Faria Vasconcelos, Frederico Sampaio Neves, Saulo Leonardo Sousa Melo, Paulo Sérgio Flores Campos, Francisco Haiter-Neto

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

Objective: To assess the accuracy of cone-beam computed tomography (CBCT) in periimplant fenestration and dehiscence detection, and to determine the effects of 2 voxel sizes and scan modes. Study Design: One hundred titanium implants were placed in bovine ribs in which periimplant fenestration and dehiscence were simulated. CBCT images were acquired with the use of 3 protocols of the i-CAT NG unit: A) 0.2 mm voxel size half-scan (180°); B) 0.2 mm voxel size full-scan (360°); and C) 0.12 mm voxel size full scan (360°). Receiver operating characteristic curves and diagnostic values were obtained. The Az values were compared with the use of analysis of variance. Results: The Az value for dehiscence in protocol A was significantly lower than those of B or C (P <.01). They did not statistically differ for fenestration (P >.05). Conclusions: Protocol B yielded the highest values. The voxel sizes did not affect fenestration and dehiscence detection, and for dehiscence full-scan performed better than half-scan.

Original languageEnglish (US)
Pages (from-to)121-127
Number of pages7
JournalOral surgery, oral medicine, oral pathology and oral radiology
Volume115
Issue number1
DOIs
StatePublished - Jan 1 2013

ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Pathology and Forensic Medicine
  • Dentistry (miscellaneous)
  • Radiology Nuclear Medicine and imaging

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