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Labial commissure of mouth
From Wikipedia, the free encyclopedia
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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).
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The commissure is important in facial appearance, particularly during some functions, including smiling. As such it is of interest to dental surgeons.
Diseases that involve the commissure include angular chelitis.
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See also
Wikimedia Commons has media related to Labial commissure of mouth.
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