Mandibular Canal Anatomy and Implications in Dental Implantology
Summary
The mandibular canal is a key osseous channel within the lower jaw that houses the inferior alveolar neurovascular bundle. Its course, position and branching patterns—most notably the mental foramen, anterior loop, incisive canal and occasional retromolar canal—exhibit considerable interindividual and population-specific variation. Precise knowledge of these variations is essential to avoid nerve injury, haemorrhage and other complications during dental implant placement. Modern implantology relies heavily on three-dimensional imaging to map the canal’s trajectory relative to planned implant sites, to determine bone volume and density, and to identify safe drilling zones. A detailed appreciation of both bony and soft-tissue relationships in the anterior and posterior mandible underpins optimal surgical planning, informs implant selection and angulation, and contributes to long‐term functional and sensory outcomes.
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Mandibular Canal Anatomy and Implications in Dental Implantology publication trend
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Technical terms
Mandibular canal: A bony passage in the mandible containing the inferior alveolar nerve and vessels.
Inferior alveolar nerve: A branch of the mandibular division of the trigeminal nerve that provides sensation to lower teeth and chin.
Mental foramen: The opening on the anterolateral mandible through which the mental nerve exits.
Anterior loop: The forward extension of the inferior alveolar nerve beyond the mental foramen before looping back.
Retromolar canal: An anatomical variant branching posteriorly from the mandibular canal behind the last molar.
Cone-beam computed tomography (CBCT): A high-resolution three-dimensional imaging modality widely used for dental and maxillofacial assessment.
References
- Study of the mandibular canal and its surrounding canals by multi-view cone-beam computed tomography. Insights into Imaging (2024).
- Structural analysis of the mylohyoid muscle as a septum dividing the floor of the oral cavity for the purposes of dental implant surgery: variety of muscle attachment positions and ranges of distribution. International Journal of Implant Dentistry (2023).
- Morphometric Analysis of the Mandibular Canal and Its Anatomical Variants in a Chilean Subpopulation: Cone Beam Computed Tomography Study. Diagnostics (2024).
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