About Bioline  All Journals  Testimonials  Membership  News  Donations

Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
EISSN: 1677-3225
Vol. 11, No. 2, 2012, pp. 84-87
Bioline Code: os12017
Full paper language: English
Document type: Research Article
Document available free of charge

Brazilian Journal of Oral Sciences, Vol. 11, No. 2, 2012, pp. 84-87

 en A methodology to standardize the evaluation of root canal instrumentation using cone beam computed tomography
Flores, Cláudia Bohrer; Machado, Patrícia; Montagner, Francisco; Gomes, Brenda Paula Figueiredo de Almeida; Dotto, Gustavo Nogara & Schmitz, Marcia da Silva


The evaluation of root canal instrumentation is important to observe the action of endodontic instruments in the root canal walls.
Aim: This study introduces a method to standardize the acquisition of images before and after preparing root canals by using cone-beam computed tomography (CBCT).
Methods: Sixteen mandibular molars were included in acrylic resin blocks. Samples were inserted in a stable wood box, which was filled with plaster and served as a guide to reinsert the samples. The apparatus was used for the CBCT examination before and after cervical flaring of root canals. The software IcatVision® was used to equalize the images before and after instrumentation with two computers operating at the same time. The measurements between root canal center and the furcation area were determined. The statistical analysis was performed using the t-test for paired samples (á=0.05).
Results: The values for dentin thickness in the risk zone before and after root canal flaring with Gates-Gliden drills were 1.096 (± 0.27) mm and 0.742 (± 0.24) (p<0.01), respectively.
Conclusions: The proposed method assures the same positioning of the samples before and after root canal preparation. It is extremely important, as any mesiodistal or buccolingual movement can produce a different topogram for comparison procedures.

cone-beam computed tomography, anatomy cross-sectional, image processing computer-assisted, endodontics

© Copyright 2012 Braz J Oral Sci.
Alternative site location:

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2018, Site last up-dated on 17-Sep-2018.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Internet Data Center of Rede Nacional de Ensino e Pesquisa, RNP, Brazil