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KMID : 1034420160410010068
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Restorative Dentistry & Endodontics
2016 Volume.41 No. 1 p.68 ~ p.73
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Endodontic treatment of a C-shaped mandibular second premolar with four root canals and three apical foramina: a case report
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Bertrand Thikamphaa
Kim Sahng-Gyoon
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Abstract
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This case report describes a unique C-shaped mandibular second premolar with four canals and three apical foramina and its endodontic management with the aid of cone-beam computer tomography (CBCT). C-shaped root canal morphology with four canals was identified under a dental operating microscope. A CBCT scan was taken to evaluate the aberrant root canal anatomy and devise a better instrumentation strategy based on the anatomy. All canals were instrumented to have a 0.05 taper using 1.0 mm step-back filing with appropriate apical sizes determined from the CBCT scan images and filled using a warm vertical compaction technique. A C-shaped mandibular second premolar with multiple canals is an anatomically rare case for clinicians, yet its endodontic treatment may require a careful instrumentation strategy due to the difficulty in disinfecting the canals in the thin root area without compromising the root structure.
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KEYWORD
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CBCT, C-shaped, Four canals, Instrumentation, Mandibular second premolar
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