J Korean Acad Conserv Dent.  2010 Jul;35(4):302-305. 10.5395/JKACD.2010.35.4.302.

Root canal treatment of a mandibular second premolar with three separate root canals

• Lee SR
• Shin SH
• Hong SO
• Song CK
• Chang HS
• Min KS

• KMID: 2176396
• DOI: http://doi.org/10.5395/JKACD.2010.35.4.302

Abstract

Mandibular premolars show a wide variety of root canal anatomy. Especially, the occurrence of three canals with three separate foramina in mandibular second premolars is very rare. This case report describes the root canal treatment of an unusual morphological configuration of the root canal system and supplements previous reports of the existence of such configuration in mandibular second premolar.

Keyword

Mandibular second premolar; Root canal anatomy; Three separate canals

MeSH Terms

Bicuspid
Dental Pulp Cavity

Figure

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  Figure 1 Preoperative periapical radiograph of mandibular left second premolar.

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  Figure 2 The radiograph of working length measurement demonstrating three root canals. The H-file was inserted in the lingual canal.

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  Figure 3 Microscopic views of the furcation area and the root canal orifices following obturation.

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  Figure 4 Post-operative radiograph showing obturation of the root canal system.

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