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Angular cheilitis typically starts with a red dry patch on the corners of the mouth. It can be on one or both sides, with a dry, scaly appearance, according to the Cleveland Clinic.
Initially, the corners of the mouth develop a gray-white thickening and adjacent erythema (redness). [2] Later, the usual appearance is a roughly triangular area of erythema, edema (swelling) and breakdown of skin at either corner of the mouth. [2] [4] The mucosa of the lip may become fissured (cracked), crusted, ulcerated or atrophied.
The inflammation may include the perioral skin (the skin around the mouth), the vermilion border, or the labial mucosa. [1] The skin and the vermilion border are more commonly involved, as the mucosa is less affected by inflammatory and allergic reactions. [1] Cheilitis is a general term, and there are many recognized types and different causes.
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 some functions, including smiling. As such it is of interest to dental surgeons.
There is nothing more annoying than dry, cracked corners of the mouth. Recently, I had a bout with this issue and it had me over-moisturizing my lips, to the point where it became an obsession.
The uncovering of the canine tooth is the result of a double movement. The angle or corner of the mouth is drawn a little backwards, and at the same time a muscle which runs parallel to and near the nose draws up the outer part of the upper lip, and exposes the canine on this side of the face.
Corners of mouth: Lateral elevation: Zygomaticus major: Zygomatic bone: Underneath skin at corners of mouth (dimple area), orbicularis oris: Shaping of lips (as during speech) Lips: Multiple: Orbicularis oris: Tissue surrounding lips: Underneath skin at corners of the mouth Lateral movement of cheeks (e.g., sucking on a straw; also used to ...
Charles Darwin described the primary act of frowning as the furrowing of the brow which leads to a rise in the upper lip and a down-turning of the corners of the mouth. [1] While the appearance of a frown varies from culture to culture, there appears to be some degree of universality to the recognition of the frown as a negative facial ...