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논문 기본 정보

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학술저널
저자정보
Nikbin, Ava (Department of Maxillofacial Radiology, Faculty of Dentistry, Guilan University of Medical Sciences) Kajan, Zahra Dalili (Dental Sciences Research Center, Department of Maxillofacial Radiology, Faculty of Dentistry, Guilan University of Medical Sciences) Taramsari, Mehran (Dental Sciences Research Center, Department of Endodontics, Faculty of Dentistry, Guilan University of Medical Sciences) Khosravifard, Negar (Dental Sciences Research Center, Department of Maxillofacial Radiology, Faculty of Dentistry, Guilan University of Medical Sciences)
저널정보
대한영상치의학회 Imaging science in dentistry Imaging science in dentistry 제48권 제4호
발행연도
2018.1
수록면
245 - 254 (10page)

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Purpose: To assess the effects of object position in the field of view (FOV) and application of a metal artifact reduction (MAR) algorithm on the diagnostic accuracy of cone-beam computed tomography (CBCT) for the detection of vertical root fractures(VRFs). Materials and Methods: Sixty human single-canal premolars received root canal treatment. VRFs were induced in 30 endodontically treated teeth. The teeth were then divided into 4 groups, with 2 groups receiving metal posts and the remaining 2 only having an empty post space. The roots from different groups were mounted in a phantom made of cow rib bone, and CBCT scans were obtained for the 4 different groups. Three observers evaluated the images independently. Results: The highest frequency of correct diagnoses of VRFs was obtained with the object positioned centrally in the FOV, using the MAR algorithm. Peripheral positioning of the object without the MAR algorithm yielded the highest sensitivity for the first observer (66.7%). For the second and third observers, a central position improved sensitivity, with or without the MAR algorithm. In the presence of metal posts, central positioning of the object in the FOV significantly increased the diagnostic sensitivity and accuracy compared to peripheral positioning. Conclusion: Diagnostic accuracy was higher with central positioning than with peripheral positioning, irrespective of whether the MAR algorithm was applied. However, the effect of the MAR algorithm was more significant with central positioning than with peripheral positioning of the object in the FOV. The clinical experience and expertise of the observers may serve as a confounder in this respect.
#Tooth Fracture #Artifact #Diagnosis #Cone-Beam Computed Tomography

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참고문헌 (29)

참고문헌 신청
Kamburoǧlu K / 2010 / Detection of vertical root fracture using cone-beam computerized tomography: an in vitro assessment / Oral Surg Oral Med Oral Pathol Oral Radiol Endod 109:e74~e81 google schola Tamse A / 2006 / Vertical root fractures in endodontically treated teeth:diagnostic signs and clinical management / Endod Topics 13:84~94 google schola Khedmat S / 2012 / Evaluation of three imaging techniques for the detection of vertical root fractures in the absence and presence of gutta-percha root fillings / Int Endod J 45:1004~1009 google schola Patel S / 2007 / The potential applications of cone beam computed tomography in the management of endodontic problems / Int Endod J 40:818~830 google schola Pauwels R / 2013 / Quantification of metal artifacts on cone beam computed tomography images / Clin Oral Implants Res 24(Suppl A100):94~99 google schola

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