Mentalis Muscle
Pronunciation: men-TAY-lis
A paired muscle of the chin that elevates and protrudes the lower lip; referenced in oral surgery texts when describing soft-tissue management during anterior mandibular procedures.
Full Definition
The mentalis muscle originates from the incisive fossa of the mandible and inserts into the skin of the chin, functioning to elevate the lower lip and wrinkle the chin. In oral and maxillofacial surgery documentation, it is frequently cited in operative notes describing flap design and soft-tissue re-approximation during anterior mandibular surgery, genioplasty, or implant placement. Editors must ensure consistent spelling ('mentalis', not 'mentales') and correct placement in anatomical descriptions, keeping the term distinct from the mental nerve, which passes in the same region. Erroneous transposition of 'mentalis' and 'mental' (as in mental nerve or mental foramen) is a common editorial error in surgical transcription.
Usage
Usage note: Do not abbreviate to 'mental muscle'; always use the full term 'mentalis muscle' in surgical documentation to avoid confusion with adjacent anatomical structures.
In Context
- "The operative note specified that the mentalis muscle was carefully reattached to prevent post-operative chin ptosis." — Operative Report
- "Editors should verify whether the author intends 'mentalis muscle' or 'mental nerve' when transcribing genioplasty notes, as the abbreviation 'mental' is used for both structures." — Transcription Quality Review