Method for determination of root curvature radius using cone-beam computed tomography images

Brazilian Dental Journal

Carlos Estrela²  Mike Reis Bueno¹  Manoel Damião Sousa-neto¹  Jesus Djalma Pécora¹ 

[1] ,Federal University of Goiás Dental School Goiânia GO ,Brazil

关键词: curvature radius;    cone-beam computed tomography;    cleaning and shaping;    apical transportation;    root canal curvature;   

DOI  :  10.1590/S0103-64402008000200005

来源: SciELO

【 摘 要 】

This article describes and discusses a method to determine root curvature radius by using cone-beam computed tomography (CBCT). The severity of root canal curvature is essential to select instrument and instrumentation technique. The diagnosis and planning of root canal treatment have traditionally been made based on periapical radiography. However, the higher accuracy of CBCT images to identify anatomic and pathologic alterations compared to panoramic and periapical radiographs has been shown to reduce the incidence of false-negative results. In high-resolution images, the measurement of root curvature radius can be obtained by circumcenter. Based on 3 mathematical points determined with the working tools of Planimp® software, it is possible to calculate root curvature radius in both apical and coronal directions. The CBCT-aided method for determination of root curvature radius presented in this article is easy to perform, reproducible and allows a more reliable and predictable endodontic planning, which reflects directly on a more efficacious preparation of curved root canals.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License