TY - JOUR
T1 - Influence of voxel size and scan field of view on fracture-like artifacts from gutta-percha obturated endodontically treated teeth on cone-beam computed tomography images
AU - Iikubo, Masahiro
AU - Nishioka, Takashi
AU - Okura, Shintaro
AU - Kobayashi, Kaoru
AU - Sano, Tsukasa
AU - Katsumata, Akitoshi
AU - Ariji, Eiichiro
AU - Kojima, Ikuho
AU - Sakamoto, Maya
AU - Sasano, Takashi
N1 - Funding Information:
This work was supported in part by a Grant-in-Aid for Project Research (No. 2011 B-5) from the Japanese Association for Dental Science. The authors deny any conflict of interest related to this study.
Publisher Copyright:
© 2016 Elsevier Inc.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Objective To determine the optimal scan settings (scan mode and position of field of view [FOV]) for cone beam computed tomography to reduce root fracture-like artifacts that are often observed in teeth filled with gutta-percha cones (GPCs). Study Design Fracture-like artifacts that appeared on cone beam computed tomography images of 9 extracted human mandibular premolars filled with GPCs were analyzed using I-mode (FOV, 102 mm; voxel size, 0.2 mm) and D-mode (FOV, 51 mm; voxel size, 0.1 mm) settings. Results The artificial lines were more obvious in I-mode than in D-mode. Increased distance between the center of the FOV and the GPCs produced stronger artificial lines in both I-mode and D-mode. Conclusion To reduce fracture-like artifacts, it is critical to use a mode with small voxel size and to place the target tooth in the center of the FOV.
AB - Objective To determine the optimal scan settings (scan mode and position of field of view [FOV]) for cone beam computed tomography to reduce root fracture-like artifacts that are often observed in teeth filled with gutta-percha cones (GPCs). Study Design Fracture-like artifacts that appeared on cone beam computed tomography images of 9 extracted human mandibular premolars filled with GPCs were analyzed using I-mode (FOV, 102 mm; voxel size, 0.2 mm) and D-mode (FOV, 51 mm; voxel size, 0.1 mm) settings. Results The artificial lines were more obvious in I-mode than in D-mode. Increased distance between the center of the FOV and the GPCs produced stronger artificial lines in both I-mode and D-mode. Conclusion To reduce fracture-like artifacts, it is critical to use a mode with small voxel size and to place the target tooth in the center of the FOV.
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U2 - 10.1016/j.oooo.2016.07.014
DO - 10.1016/j.oooo.2016.07.014
M3 - Article
C2 - 27765333
AN - SCOPUS:84994893402
SN - 2212-4403
VL - 122
SP - 631
EP - 637
JO - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
JF - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
IS - 5
ER -