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Case Reports in Dentistry
Volume 2013, Article ID 891849, 4 pages
Case Report

Three Independent Mesial Canals in a Mandibular Molar: Four-Year Followup of a Case Using Cone Beam Computed Tomography

1Department of Dentistry, State University of Montes Claros, Avenue Rui Braga s/n, 39401-089, Montes Claros, MG, Brazil
2Department of Restorative Dentistry, Faculty of Dentistry, University of São Paulo, Avenue Bandeirantes 3900, 14040-900, Ribeirão Preto, SP, Brazil

Received 15 February 2013; Accepted 24 March 2013

Academic Editors: J. J. Segura-Egea, K. Seymour, and N. Shah

Copyright © 2013 Adrianne Freire de Paula et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Endodontic treatment of mandibular molars is challenging because of variable root canal morphology. The nonsurgical endodontic management of a mandibular first molar presenting an independent middle mesial canal is reported. After coronal access, additional clinical inspection of the mesial canals’ orifices and their interconnecting groove using an endodontic explorer and 4.5× loupes enabled the identification of the middle mesial canal orifice. All root canals were chemomechanically prepared and filled. The tooth was asymptomatic and functional after 4 years of followup. Cone beam computed tomography (CBCT) images revealed normal periapical status and three-dimensional (3D) anatomical aspects of the root canal system.