Method for determination of root curvature radius using cone-beam computed tomography images
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Data
2008
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Resumo
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.
Descrição
Palavras-chave
Curvature radius, Cone-beam computed tomography, Cleaning and shaping, Root canal curvature, Apical transportation
Citação
ESTRELA, Carlos et al. Method for determination of root curvature radius using cone-beam computed tomography images. Brazilian Dental Journal, Ribeirão Preto v. 19, n. 2, p. 114-118, 2008.