TY - JOUR
T1 - 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
AU - De-Azevedo-Vaz, Sergio Lins
AU - Vasconcelos, Karla De Faria
AU - Neves, Frederico Sampaio
AU - Melo, Saulo Leonardo Sousa
AU - Campos, Paulo Sérgio Flores
AU - Haiter-Neto, Francisco
PY - 2013/1
Y1 - 2013/1
N2 - 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.
AB - 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.
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U2 - 10.1016/j.oooo.2012.10.003
DO - 10.1016/j.oooo.2012.10.003
M3 - Article
C2 - 23217543
AN - SCOPUS:84870887213
SN - 2212-4403
VL - 115
SP - 121
EP - 127
JO - Oral surgery, oral medicine, oral pathology and oral radiology
JF - Oral surgery, oral medicine, oral pathology and oral radiology
IS - 1
ER -