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Related Experiment Video

Updated: Apr 25, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

Maxillary first premolar with three root canals: a case report.

A O Sulaiman¹, O O Dosumu¹, McKing Amedari²

¹Department of Restorative Dentistry, University College Hospital, Ibadan.

Annals of Ibadan Postgraduate Medicine

|August 28, 2014

Summary

This case report details a rare three-canal maxillary first premolar discovered during root canal treatment. Accurate diagnosis and exploration are crucial for successful endodontic therapy in complex dental anatomy.

Keywords:

Elective Endodontic Treatment Maxillary First Premolar Root Canal Morphology.

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Area of Science:

Endodontics
Dental Anatomy
Radiology

Background:

The maxillary first premolar typically exhibits two roots and two root canals.
Variations in root and canal morphology can complicate endodontic treatment.
Understanding tooth anatomy is vital for successful root canal procedures.

Observation:

A rare case of a maxillary first premolar with three root canals was identified.
The tooth presented with an ill-defined root outline on radiographic examination.
This anomaly was discovered during an elective root canal treatment procedure.

Findings:

The maxillary first premolar, usually having two canals, can rarely present with three.
A third canal in this tooth can be easily overlooked without meticulous examination.
Radiographic interpretation and thorough exploration are key to identifying complex canal systems.

Implications:

This finding highlights the importance of detailed radiographic analysis and careful exploration in endodontics.
Clinicians must be aware of rare anatomical variations to ensure comprehensive treatment.
Failure to identify all canals can lead to treatment failure and persistent infection.