Detailed Depiction of the Anatomy of the Male Chin

Description

Anterior lower facial soft tissues are centered on the mentum (chin), with the mental protuberance forming the most projecting point in the midline and the paired mental tubercles lying inferolateral to it. Superiorly, the chin transitions into the labiomental (mentolabial) sulcus beneath the lower lip, where the soft tissue contour reflects the underlying mandibular symphysis. Laterally, the chin merges with the parasymphyseal mandibular body and the perioral soft tissues at the oral commissure level, while inferiorly it tapers toward the submental region. Subtle midline dimpling can be present over the symphysis. A common normal variant. Chin form matters because it integrates skeletal projection and soft tissue dynamics, a relationship that guides planning for genioplasty, sliding osteotomy, and alloplastic chin augmentation in male patients. The mentalis muscle, which originates from the incisive fossa of the mandible and inserts into the dermis of the chin, strongly influences labiomental fold depth; inadequate resuspension after intraoral approaches can contribute to postoperative chin ptosis (witch’s chin deformity). Surface landmarks here also help localize the mental foramen region (typically inferolateral to the commissure, near the second premolar) when considering local anesthesia and avoiding mental nerve injury during lower facial procedures. Use this artwork for facial anatomy teaching in head and neck courses, for plastic and maxillofacial surgery texts discussing chin aesthetics and osteotomy planning, and for patient education materials explaining male chin contouring and expected changes in the labiomental crease. Anatomical accuracy verified by SciePro's Medical Advisory Board.