Labial commissure of mouth

Labial commissure of mouth
Fourteen Nylon sutures used to approximate the edges of this left cheek laceration, extending from the left commisure towards the left ear, allowing it to heal with considerably less scarring than it would without sutures.
Details
Identifiers
Latin	commissura labiorum oris
TA	A05.1.01.012
FMA	77268
*Anatomical terminology* [edit on Wikidata]

The commissure is the corner of the mouth, where the vermillion border of the superior labium (upper lip) meets that of the inferior labium (lower lip).

The commissure is important in facial appearance, particularly during function such as smiling. As such it is of interest to dental surgeons.

Diseases that involve the commissure include angular chelitis.

Anatomy of the mouth

Lip	Upper Lower Vermilion border Frenulum of lower lip Labial commissure of mouth Philtrum

Cheek	Buccal fat pad

Roof	Hard palate Soft palate Palatine raphe Incisive papilla

Gums	Interdental papilla Gingival sulcus Gingival margin Gingival fibers Junctional epithelium Mucogingival junction Sulcular epithelium Stippling Periodontium Cementum Gingiva Periodontal ligament

Glands	Parotid gland duct Submandibular gland duct Sublingual gland duct

Teeth	see tooth anatomy

Tongue	Top Taste bud Median sulcus Terminal sulcus Foramen cecum Lingual tonsils Underside Frenulum Plica fimbriata Sublingual caruncle Glossoepiglottic folds Lingual septum

Back of mouth	Oropharynx fauces Plica semilunaris of the fauces Uvula Palatoglossal arch Palatopharyngeal arch Tonsillar fossa Palatine tonsil

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Labial commissure of mouth

See also