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Case Report
Endodontic treatment of a C-shaped mandibular second premolar with four root canals and three apical foramina: a case report
Thikamphaa Bertrand, Sahng Gyoon Kim
Restor Dent Endod 2016;41(1):68-73.   Published online January 19, 2016
DOI: https://doi.org/10.5395/rde.2016.41.1.68
AbstractAbstract PDFPubReaderePub

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.

Citations

Citations to this article as recorded by  
  • Unique root anatomy of mandibular second premolars: clinical strategies for effective disinfection and preservation of dentine structure in root canal treatment—a case report
    Ji Wook Jeong, Erika Silguero Gonzalez, Scott R. Makins, Timothy Kirkpatrick
    Frontiers in Dental Medicine.2024;[Epub]     CrossRef
  • PRICE 2020 guidelines for reporting case reports in Endodontics: explanation and elaboration
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  • A cone-beam computed tomography study of C-shaped root canal systems in mandibular second premolars in a Taiwan Chinese subpopulation
    Yi-Chin Chen, Chia-Lun Tsai, Yi-Chen Chen, Gin Chen, Shue-Fen Yang
    Journal of the Formosan Medical Association.2018; 117(12): 1086.     CrossRef
  • Anatomic Comparison of Contralateral Premolars
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    Journal of Endodontics.2017; 43(6): 956.     CrossRef
  • Endodontic Management of Dilacerated Maxillary Central Incisor fused to a Supernumerary Tooth using Cone Beam Computed Tomography: An Unusual Clinical Presentation
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    The Journal of Contemporary Dental Practice.2017; 18(6): 522.     CrossRef
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