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Mandibular second premolars with three root canals: a review and 3 case reports
Zahra Borna1, Saeed Rahimi, Shahriar Shahi
1Endodontist, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran.
Iranian Endodontic Journal
|November 7, 2012
Summary
Mandibular second premolars rarely have three canals, occurring in less than 1% of cases. This report details successful nonsurgical endodontic treatment for three such teeth, highlighting the importance of careful examination for complex root canal anatomy.
Area of Science:
- Endodontics
- Dental Anatomy
Background:
- The prevalence of three canals in mandibular second premolars is reported between 0.46-0.5%.
- Complex root canal anatomy necessitates careful consideration before endodontic therapy.
Observation:
- This report details the nonsurgical endodontic treatment of three mandibular second premolars, each exhibiting three canals.
- Three canal orifices were identified: mesiobuccal, distobuccal, and lingual.
- Mesiobuccal orifices were located after the removal of dentinal shelves.
Findings:
- Successful nonsurgical endodontic treatment was achieved in all three cases with complex root canal morphology.
- Conventional endodontic techniques, without surgical intervention, led to adequate healing.
Implications:
- Clinicians must be aware of unusual root canal anatomy in mandibular premolars.
- Thorough examination of the pulp chamber, ideally with magnification, is crucial for identifying accessory canal orifices.
- Early detection and management of complex anatomy can lead to successful endodontic outcomes.
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