Lateral Perspective Of The Horizontal Labiomental Artery

Description

Seen in lateral profile, the horizontal labiomental artery courses across the lower oral region along the labiomental groove, running superficial to the mandibular body and inferior to the vermilion border of the lower lip. Its trajectory relates closely to the mental foramen on the anterolateral mandible, where the mental artery and mental nerve emerge, then fan anteriorly toward the chin and lower labial tissues. Bony landmarks of the facial skeleton are visible in strict profile, including the maxilla with dentition superiorly and the mandible with the alveolar process and teeth inferiorly. Labiomental vascular anatomy matters when you are planning incisions, injections, or flap design around the lower lip and chin. Injury to the horizontal labiomental artery or its anastomoses with the inferior labial and submental systems can complicate genioplasty, mentalis muscle dissection, or chin augmentation with hematoma and edge ischemia. This is the map you want before elevating a mucoperiosteal flap in the anterior mandible, where mental neurovascular structures sit in a predictable but clinically unforgiving zone. Plastic and reconstructive surgery texts can pair this view with discussions of lower lip reconstruction, V-Y advancement flaps, and the vascular basis of the labiomental crease. Oral and maxillofacial surgery and dental anesthesia teaching can also use it to orient learners to the mental foramen region and to frame safe corridors for vestibular incisions and local infiltration near the chin. Anatomical accuracy verified by SciePro's Medical Advisory Board.