TY - JOUR
T1 - Accuracy of intraoral radiography, multidetector helical CT, and limited cone-beam CT for the detection of horizontal tooth root fracture
AU - Iikubo, Masahiro
AU - Kobayashi, Kaoru
AU - Mishima, Akira
AU - Shimoda, Shinji
AU - Daimaruya, Takayoshi
AU - Igarashi, Chinami
AU - Imanaka, Masahiro
AU - Yuasa, Masao
AU - Sakamoto, Maya
AU - Sasano, Takashi
PY - 2009/11/1
Y1 - 2009/11/1
N2 - Objective: The accuracies of intraoral radiography (IOR), multidetector helical computerized tomography (MDHCT) at slice thicknesses 0.63 mm and 1.25 mm, and limited cone-beam computerized tomography (LCBCT) were compared for detection of horizontal tooth root fracture. Study design: In 7 beagle dogs, 28 maxillary anterior teeth were used, of which 13 had artificially induced horizontal root fracture. The specimens were examined by the above-mentioned 4 modalities. Diagnosis of root fracture was based on direct visualization of radiolucent line in each image by 6 radiologists. Results: Sensitivity, negative predictive value, and diagnostic accuracy (true positives + true negatives) for detecting fracture lines in LCBCT (0.96 ± 0.04, 0.97 ± 0.03, 0.93 ± 0.04, respectively) were significantly higher than MDHCT at 0.63 mm (0.76 ± 0.09, 0.8 ± 0.05, 0.8 ± 0.05, respectively), MDHCT at 1.25 mm (0.49 ± 0.09, 0.66 ± 0.04, 0.69 ± 0.05, respectively), and IOR (0.51 ± 0.18, 0.67 ± 0.08, 0.69 ± 0.08, respectively). Specificity and positive predictive value showed no significant intermethod difference among the 4 modalities. Conclusion: Limited cone-beam CT is more useful than the other 3 radiographic modalities for diagnostic imaging of horizontal tooth root fracture.
AB - Objective: The accuracies of intraoral radiography (IOR), multidetector helical computerized tomography (MDHCT) at slice thicknesses 0.63 mm and 1.25 mm, and limited cone-beam computerized tomography (LCBCT) were compared for detection of horizontal tooth root fracture. Study design: In 7 beagle dogs, 28 maxillary anterior teeth were used, of which 13 had artificially induced horizontal root fracture. The specimens were examined by the above-mentioned 4 modalities. Diagnosis of root fracture was based on direct visualization of radiolucent line in each image by 6 radiologists. Results: Sensitivity, negative predictive value, and diagnostic accuracy (true positives + true negatives) for detecting fracture lines in LCBCT (0.96 ± 0.04, 0.97 ± 0.03, 0.93 ± 0.04, respectively) were significantly higher than MDHCT at 0.63 mm (0.76 ± 0.09, 0.8 ± 0.05, 0.8 ± 0.05, respectively), MDHCT at 1.25 mm (0.49 ± 0.09, 0.66 ± 0.04, 0.69 ± 0.05, respectively), and IOR (0.51 ± 0.18, 0.67 ± 0.08, 0.69 ± 0.08, respectively). Specificity and positive predictive value showed no significant intermethod difference among the 4 modalities. Conclusion: Limited cone-beam CT is more useful than the other 3 radiographic modalities for diagnostic imaging of horizontal tooth root fracture.
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U2 - 10.1016/j.tripleo.2009.07.009
DO - 10.1016/j.tripleo.2009.07.009
M3 - Article
C2 - 19836716
AN - SCOPUS:72049100702
VL - 108
SP - e70-e74
JO - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
JF - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
SN - 2212-4403
IS - 5
ER -