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Updated: Jun 23, 2026

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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
[Five root canals in right mandibular first molar: report of one case]
1College of Stomatology, Dalian Medical University, Dalian 116027, Liaoning Province, China. snowzhau@yahoo.com.cn
Summary
Mandibular first molars typically have 3-4 root canals. This case study details a rare mandibular first molar with five root canals, aiding successful endodontic treatment.
Area of Science:
- Endodontics
- Dental Anatomy
- Radiology
Background:
- Mandibular first molars are crucial for mastication.
- Root canal anatomy can exhibit significant variations.
- Understanding complex root canal morphology is vital for successful endodontic treatment.
Observation:
- A rare case of a mandibular first molar presenting with five root canals is described.
- The molar had three mesial canals and two distal canals.
- Radiographic features aiding in the detection of this complex anatomy were documented.
Findings:
- The successful detection and treatment of the five canals were achieved.
- Detailed X-ray features provided insights into the canal configuration.
- This anatomical variation required meticulous endodontic management.
Implications:
- This case highlights the importance of thorough diagnostic imaging in endodontics.
- Clinicians should be prepared for unusual root canal anatomies in mandibular molars.
- Successful management of complex cases can be facilitated by understanding and documenting rare anatomical variations.
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