Comparison of limited- and large-volume cone-beam computed tomography using a small voxel size for detecting isthmuses in mandibular molars
de Souza Tolentino Elen, Amoroso-Silva Pablo Andres, Alcalde Murilo Priori, Yamashita Fernanda Chiguti, Iwaki Lilian Cristina Vessoni, Rubira-Bullen Izabel Regina Fischer, Duarte Marco Antonio Hungaro,
소속 상세정보
( de Souza Tolentino Elen ) - State University of Maringa Department of Dentistry
( Amoroso-Silva Pablo Andres ) - State University of Londrina Department of Restorative Dentistry
( Alcalde Murilo Priori ) - University of Sao Paulo Bauru School of Dentistry Department of Operative Dentistry, Endodontics and Dental Materials
( Yamashita Fernanda Chiguti ) - State University of Maringa Department of Dentistry
( Iwaki Lilian Cristina Vessoni ) - State University of Maringa Department of Dentistry
( Rubira-Bullen Izabel Regina Fischer ) - University of Sao Paulo Bauru School of Dentistry Department of Surgery, Stomatology, Pathology and Radiology
( Duarte Marco Antonio Hungaro ) - University of Sao Paulo Bauru School of Dentistry Department of Operative Dentistry, Endodontics and Dental Materials
Abstract
Purpose: This study was performed to compare the ability of limited- and large-volume cone-beam computed tomography (CBCT) to display isthmuses in the apical root canals of mandibular molars.
Materials and Methods: Forty human mandibular first molars with isthmuses in the apical 3 mm of mesial roots were scanned by micro-computed tomography (micro-CT), and their thickness, area, and length were recorded. The samples were examined using 2 CBCT systems, using the smallest voxels and field of view available for each device. The Mann-Whitney, Friedman, and Dunn multiple comparison tests were performed (α=0.05).
Results: The 3D Accuitomo 170 and i-Cat devices detected 77.5% and 75.0% of isthmuses, respectively (P>0.05). For length measurements, there were significant differences between micro-CT and both 3D Accuitomo 170 and i-Cat (P<0.05).
Conclusion: Both CBCT systems performed similarly and did not detect isthmuses in the apical third in some cases. CBCT still does not equal the performance of micro-CT in isthmus detection, but it is nonetheless a valuable tool in endodontic practice.
키워드
Cone-Beam Computed Tomography; Endodontics; Molar; X-Ray Microtomography
원문 및 링크아웃 정보
등재저널 정보