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Related Experiment Videos

The mandibular incisive foramen.

N J Serman1

  • 1School of Dental and Oral Surgery, Columbia University, New York, N.Y. 10032.

Journal of Anatomy
|December 1, 1989
PubMed
Summary
This summary is machine-generated.

An anatomical variant shows the inferior alveolar nerve branching after exiting the mental foramen. This results in the incisive nerve having an external course before re-entering the mandible via a new foramen.

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Area of Science:

  • Anatomy
  • Dental Anatomy
  • Neuroanatomy

Background:

  • The mental foramen is a key anatomical landmark in the mandible.
  • Variations in the branching pattern of the inferior alveolar nerve can impact dental procedures.

Purpose of the Study:

  • To describe a specific anatomical variant of the inferior alveolar nerve.
  • To propose nomenclature for a newly identified foramen associated with this variant.

Main Methods:

  • Anatomical observation and description of a variant in the mental foramen region.
  • Analysis of nerve pathways and foraminal structures within the mandible.

Main Results:

  • The inferior alveolar nerve bifurcates distal to the mental foramen.

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  • A separate foramen, proposed as the 'mandibular incisive foramen,' transmits the incisive nerve back into the mandible.
  • A segment of the mandible exists without direct nerve supply from the inferior alveolar nerve.

    • Conclusions:

    • This anatomical variant necessitates recognition of a distinct mandibular incisive foramen.
    • The findings have implications for understanding mandibular innervation and surgical approaches.