Analysis of the accuracy of cone beam computed tomography exam in determining the work length during root canal treatment
Autor(es): Oliveira HF, Mamede-Neto I, Castro EF, Chaves GS, Guedes OA, Borges AH, Decurcio DA
Palabras clave: Preparo do canal radicular; odontometria;
odontometria eletrônica; localizador eletrônico foraminal; tomografia computadorizada de feixe cônico.
Aim: To evaluate the accuracy of Cone Beam Computed Tomography (CBCT) in work length (WL) determination in twenty four single-rooted human Material and Methods: After performing the procedures of coronary opening, root canal exploration and cervical preflaring, the teeth had their work lengths determined by direct, electronic and tomographic methods. In the direct method, the WL was determined visually, using a #20 KFile instrument. In the electronic and tomographic methods, the WLs were determined using the Root ZX II locating device and TCFC images, respectively. The data were analyzed statistically by the ANOVA test at 5% significance level. Results: A total of 72 measurements were performed. No statistical difference was observed between the measurements obtained by the different methods. Conclusions: The CBCT proved to be an effective alternative for WL determination during root canal treatment.
