Journal of Prevention and Treatment for Stomatological Diseases ›› 2019, Vol. 27 ›› Issue (2): 107-109.doi: 10.12016/j.issn.2096-1456.2019.02.008

• Prevention and Treatment Practice • Previous Articles     Next Articles

A case of maxillary second premolar with 3 teeth and 4 root canals and a literature review

LI Hong1,XIN Bingchang2,TENG Qi1()   

  1. 1. Department of Pediatric Dentistry, Qingdao Stomatological Hospital, Qingdao 266001
    2. Department of Conservative Dentistry and Endodontics, Qingdao Stomatological Hospital, Qingdao 266001, China
  • Received:2018-09-29 Revised:2018-11-05 Online:2019-02-20 Published:2019-02-21
  • Contact: Qi TENG E-mail:tengqidoc@sina.com

Abstract:

Objective To explore the discovery and treatment of multiple root canals in the maxillary second premolar to provide a reference for root canal therapy.Methods A case of maxillary second premolar occlusal discomfort accompanied by cold and heat stimulation pain and spontaneous pain was analyzed retrospectively.Results In this case, the number of roots and root canals in the tooth was determined by CBCT to be three roots with four canals. Root canal therapy was performed with Ni-Ti endodontic files and thermoplastic gutta-percha via root optical microscopy. The clinical symptoms disappeared after the operation.Conclusion The maxillary second premolar root canal system is complex, and additional root canals can be found and located with CBCT and optical microscopy. High-quality root canal therapy was completed.

Key words: Maxillary second premolar, Root canal, Root canal morphology, Root canal treatment, Cone beam CT, Operating microscope

CLC Number: 

  • R782

Figure 1

Pre-operative radiograph of the right maxillary second premolar"

Figure 2

The CBCT image before root canal therapy"

Figure 3

During and after root canal therapy"

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