TY - JOUR
T1 - Root canal filling materials spread pattern mimicking root fractures in dental CBCT images
AU - Iikubo, Masahiro
AU - Osano, Takashi
AU - Sano, Tsukasa
AU - Katsumata, Akitoshi
AU - Ariji, Eiichiro
AU - Kobayashi, Kaoru
AU - Sasano, Takashi
AU - Wakoh, Mamoru
AU - Seki, Kenji
AU - Kojima, Ikuho
AU - Sakamoto, Maya
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.
Publisher Copyright:
© 2015 Elsevier Inc. All rights reserved.
PY - 2015/10/1
Y1 - 2015/10/1
N2 - Objective. To clarify the cause of artificial tooth-root fracture lines in cone beam computed tomography (CBCT) images caused by root canal filling materials and to enhance the diagnostic performance of CBCT. Study Design. We analyzed the CBCT images of 18 extracted human teeth (9 upper central incisors and 9 lower premolars) that were filled with a size 50 gutta-percha cone and inserted into tooth sockets in a human skull. Results. The CBCT images of the incisors displayed artificial lines in the oblique directions, notably the mesiobuccal, distolingual, distobuccal and mesiolingual directions, but only rarely in the cross-directions (buccal, lingual, mesial, and distal). In the premolars, the reverse was true, with lines mainly in the cross-directions, mesial and distal directions particularly. The lines were predominantly at the cervical slice. Conclusions. Artifacts resulting from root filling material appear along the long axis of the alveolar bones, and resemble root fractures.
AB - Objective. To clarify the cause of artificial tooth-root fracture lines in cone beam computed tomography (CBCT) images caused by root canal filling materials and to enhance the diagnostic performance of CBCT. Study Design. We analyzed the CBCT images of 18 extracted human teeth (9 upper central incisors and 9 lower premolars) that were filled with a size 50 gutta-percha cone and inserted into tooth sockets in a human skull. Results. The CBCT images of the incisors displayed artificial lines in the oblique directions, notably the mesiobuccal, distolingual, distobuccal and mesiolingual directions, but only rarely in the cross-directions (buccal, lingual, mesial, and distal). In the premolars, the reverse was true, with lines mainly in the cross-directions, mesial and distal directions particularly. The lines were predominantly at the cervical slice. Conclusions. Artifacts resulting from root filling material appear along the long axis of the alveolar bones, and resemble root fractures.
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U2 - 10.1016/j.oooo.2015.06.030
DO - 10.1016/j.oooo.2015.06.030
M3 - Article
C2 - 26346912
AN - SCOPUS:84941564882
VL - 120
SP - 521
EP - 527
JO - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
JF - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
SN - 2212-4403
IS - 4
ER -