Mental foramen

Mental foramen
Mandible. Outer surface. Side view. (Mental foramen visible at left.)
Details
Identifiers
Latin	foramen mentale
Dorlands /Elsevier	f_12/12373306
TA	A02.1.15.007
FMA	53171
Anatomical terms of bone []

The mental foramen is one of two foramina (openings) located on the anterior surface of the mandible. It transmits the terminal branches of the inferior alveolar nerve and vessels. The mental foramen descends slightly in toothless individuals.

The most frequent position (63%) of the mental foramen is in line with the longitudinal axis of the 2nd premolar tooth and generally lies at the level of the vestibular fornix and about a finger’s breadth above the inferior border of the mandible. Multiple mental foramina are observed in 17% of the sides. Only (4%) of the mandibles show bilateral multiple mental foramina. The majority of the multiple foramina are unequal in size: a single large foramen while the others are small (satellite) foramina. An incisive mental foramen is observed in 1% of the sides.

Side view of the skull.

The skull from the front.

Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion.

Mandibular division of the trifacial nerve.

The permanent teeth, viewed from the right.