| Mental foramen | |
|---|---|
) Mandible. Outer surface. Side view. (Mental foramen visible at left.) | |
| Details | |
| Identifiers | |
| Latin | foramen mentale |
| MeSH | D000080383 |
| TA98 | A02.1.15.007 |
| TA2 | 845 |
| FMA | 53171 |
| Anatomical terms of bone | |
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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 artery). The mental foramen descends slightly in toothless individuals.[1]
Variations
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.[2]
Additional images
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.
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References
- ^ Soikkonen K, Wolf J, Ainamo A, Xie Q (November 1995). "Changes in the position of the mental foramen as a result of alveolar atrophy". J Oral Rehabil. 22 (11): 831–3. doi:10.1111/j.1365-2842.1995.tb00230.x. PMID 8558356.
- ^ https://www.webcitation.org/query?url=http://www.geocities.com/akramjfr/mental_frmn.html&date=2009-10-25+12:10:19
External links
- cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University) (V)
- Diagram at uni-mainz.de