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Updated: Jun 4, 2026
07:26
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
[Bifid and trifid mandibular canal. A coincidental finding]
K Mizbah1, N Gerlach, T J Maal
1Afdeling Mondziekten-, Kaak en Aangezichtschirurgie, Universitair Medisch Centrum St Radboud te Nijmegen.
Nederlands Tijdschrift Voor Tandheelkunde
|February 9, 2011
Summary
This study reports rare anatomical variations of the mandibular canal, including bifid and trifid canals, discovered during a pericoronitis evaluation. These anomalies highlight potential risks during dental procedures like third molar extraction.
Area of Science:
- Dentistry
- Radiology
- Human Anatomy
Background:
- Pericoronitis, an inflammation of the gum flap over a molar, often affects mandibular third molars.
- Accurate anatomical assessment is crucial before surgical interventions involving the mandible.
Observation:
- A panoramic radiograph and cone beam computed tomography (CBCT) were used to evaluate the mandibular canal's relationship with impacted third molars.
- The imaging revealed complex anatomical variations, including bifid and trifid mandibular canals.
Findings:
- The right side exhibited a bifid mandibular canal, with a portion near the third molar, confirmed as trifid by CBCT.
- The left side displayed a bifid mandibular canal on CBCT.
- These findings represent rare anatomical anomalies of the inferior alveolar nerve canal.
Implications:
- Mandibular canal anomalies can lead to complications during third molar surgery, such as inferior alveolar nerve injury.
- Anatomical variations may affect the efficacy of local anesthesia in the mandibular region.
- Detailed radiographic assessment is vital for safe and effective dental treatment planning.
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