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ISSN : 0376-4672
The presence of untreated canals is a wellknown cause of endodontic failure after treatment1). Hence, for a successful endodontic treatment, a thorough understanding of the root canal morphology is very important. During the clinical procedure, however, unexpected anatomic variations can be encountered, one of which is a C-shaped root canal usually found in the mandibular second molars. This morphological variation also has been reported to be in the maxillary first molars, with the reported incidence of this rare anatomy being as low as 0.09%. With developing armamentarium such as conebeam computed tomography (CBCT) and dental operative microscope (DOM), they became a valuable tool for canal identification, especially in complex canal morphology. This report describes a rare C-shaped variation in a maxillary first molar which was identified by CBCT and treated by non-surgical root canal treatment.
1. Song M, Kim HC, Lee W, Kim E. Analysis of the cause of failure in nonsurgical endodontic treatment by microscopic inspection during endodontic microsurgery. J Endod 2011;37:1516-1519.
2. Fan B, Cheung GSP, Fan M, Gutmann JL, Bian Z. C-shaped canal system in mandibular second molars: Part I - Anatomical features. J Endod 2004;30:899-903.
3. Min Y, fan B, Cheung GSP, Gutmann JL, Fan M. Cshaped canal system in mandibular second molars part III The morphology of the pulpchamber. J Endod 2006;32:1155-1159.
4. Newton CW, McDonald S. A C-shaped canal configuration in a maxillary first molar. J Endod 1984;10:397-399.
5. De MR. C-shaped root canal configuration in maxillary first molar. Int Endod J 2002;35:300-308.
6. La SH, Jung DH, Kim EC, Min KS. Identification of independent middle mesial canal in mandibular first molar using cone-beam computed tomography imaging. J Endod 2010;36:542-545.
7. Jorge NRM, Sergio Q, Maria CQ, Jared FT. Cshaped maxillary permanent first molar: A case report and literature review. J Endod 2013;39:1649-1653.
12. Karanxha L, Kim HJ, Hong SO, Lee W, Kim PS, Min KS. Endodontic management of a C-shaped maxillary first molar with three independent buccal root canals by using cone-beam computed tomography. Rest Dent Endod 2012;37:175-179.
13. Sara I, Nora S, Ron B, Archie M. Bleeding disorders: Characterization, dental considerations and management. J Can Dent Assoc 2006;72:827-827I
14. Patel S, Dawood A, Whaites E, Pitt Ford T. New dimensions in endodontic imaging: part 1. Conventional and alternative radiographic systems. Int Endod J 2009;42:447-462.
15. Tetradis S, Anstey P, Graff-Radford S. Cone beam computed tomography in the diagnosis of dental disease. Tex Dent J 2011;128:620-628.