Original scientific paper
Cone Beam Computed Tomography: a Tool to Evaluate Root Canal Preparations
Carlos Menezes Aguiar
; Department of Prosthetics and Oral and Facial Surgery, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
Fernanda Araujo Donida
; Undergraduate Student, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
Andréa Cruz Câmara
; Faculty of Dentistry, State University of Paraíba, Recife, Brazil
Marco Frazão
; Private Practice, Recife, Brazil
Abstract
Purpose: The objective of this study was to compare the use of the cone beam computed tomography (CBCT) and the double radiographic superimposition method to evaluate root canal preparations. Material and methods: Forty mesiobuccal canals of extracted human mandibular first molars were divided into 2 groups. Group 1: 20 canals were evaluated with the double radiographic superimposition before and after instrumentation; Group 2: 20 canals were evaluated by CBCT before and after instrumentation. Results: In group 1, 100% of the root canals showed presence of centralization in the coronal and middle thirds. 75% of the root canals showed presence of centralization in the apical third. In group 2, in the buccolingual and mesiodistal measurements, the presence of centralization could be observed in 100% of the root canals in the coronal, middle, and apical thirds. Conclusion: The double radiographic superimposition technique showed limitations, only allowing a two-dimensional evaluation of the root canal. The CBCT imaging system used in this study provided a repeatable, accurate, and noninvasive method of evaluating certain aspects of endodontic instrumentation, such as the centering ability.
Keywords
Root Canal Preparation; Cone-Beam Computed Tomography; Image Processing, Computer-Assisted, Evaluation Studies as Topic
Hrčak ID:
94354
URI
Publication date:
28.12.2012.
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