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KMID : 0362720160540020142
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Journal of the Korean Dental Association
2016 Volume.54 No. 2 p.142 ~ p.148
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Endodontic treatment of a continuous C-shaped maxillary first molar with independent four canals identified by using cone-beam computed tomography
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Ahn Hye-Ra
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Abstract
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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.
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KEYWORD
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Maxillary first molar, C-shaped canal, Canal morphology
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