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Restor Dent Endod. 2012 Aug;37(3):175-179. English. Case Report.
Karanxha L , Kim HJ , Hong SO , Lee W , Kim PS , Min KS .
Department of Conservative Dentistry, Wonkwang University School of Dentistry, Iksan, Korea.
Department of Oral and Maxillofacial Radiology, Wonkwang University School of Dentistry, Iksan, Korea.
Choice Dental Clinic, Suwon, Korea.

The aim of this study was to present a method for endodontic management of a maxillary first molar with unusual C-shaped morphology of the buccal root verified by cone-beam computed tomography (CBCT) images. This rare anatomical variation was confirmed using CBCT, and nonsurgical endodontic treatment was performed by meticulous evaluation of the pulpal floor. Posttreatment image revealed 3 independent canals in the buccal root obturated efficiently to the accepted lengths in all 3 canals. Our study describes a unique C-shaped variation of the root canal system in a maxillary first molar, involving the 3 buccal canals. In addition, our study highlights the usefulness of CBCT imaging for accurate diagnosis and management of this unusual canal morphology.

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