Efficacy of a cone beam computed tomography metal artifact reduction algorithm for the detection of peri-implant fenestrations and dehiscences

Sergio Lins De-Azevedo-Vaz, Priscila Dias Peyneau, Laura Ricardina Ramirez-Sotelo, Karla De Faria Vasconcelos, Paulo Sérgio Flores Campos, Francisco Haiter-Neto

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

© 2016 Elsevier Inc. All rights reserved. Objective To determine whether the use of a metal artifact reduction (MAR) algorithm improves the detection of peri-implant fenestrations and dehiscences on cone beam computed tomography scans. Study Design One hundred titanium fixtures were implanted into bovine ribs after the creation of defects simulating fenestrations and dehiscences. Images were acquired using four different protocols, namely, A2 (MAR on, voxel 0.2 mm), A3 (MAR on, voxel 0.3 mm), B2 (MAR off, voxel 0.2 mm), and B3 (MAR off, voxel 0.3 mm). For all protocols, receiver operating characteristic (ROC) curves were determined. Values for the areas under the ROC curves (Az) were subjected to analysis of variance. Results Az values were not statistically different among protocols regardless of the defect type (P >.05). Conclusions The MAR algorithm tested by us did not improve the diagnosis of peri-implant fenestrations and dehiscences with use of either the 0.2 mm or the 0.3 mm voxel sizes.
Original languageAmerican English
Pages (from-to)550-556
Number of pages7
JournalOral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
DOIs
StatePublished - 1 May 2016
Externally publishedYes

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