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The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) [5] classifies the condition under "Other Specified Obsessive-Compulsive and Related Disorder" (300.3) as a body-focused repetitive behavior; the DSM-5 uses the more descriptive terms lip biting and cheek chewing (p. 263) instead of morsicatio buccarum.
They are on each side of the frenulum (the piece of tissue connecting the bottom of the tongue to the inside of the mouth) under the tongue and run parallel next to the two distinct veins. They typically appear in pairs and may even be up to 4 or more sets, but for even those who have them only two closer to the tip are distinctly visible while ...
The mouth is also subject to sudden changes in temperature and pH meaning it must be able to adapt to change quickly. The mouth is the only place in the body which provides the sensation of taste. Due to these unique physiological features, the oral mucosa must fulfil a number of distinct functions.
Cheeks are fleshy in humans, [1] the skin being suspended by the chin and the jaws, and forming the lateral wall of the human mouth, visibly touching the cheekbone below the eye. The inside of the cheek is lined with a mucous membrane ( buccal mucosa, part of the oral mucosa ).
Inflammatory papillary hyperplasia (IPH) is a benign lesion of the oral mucosa which is characterized by the growth of one or more nodular lesions, measuring about 2mm or less. [4] [5] The lesion almost exclusively involves the hard palate, and in rare instances, it also has been seen on the mandible. The lesion is mostly asymptomatic and color ...
Squamous cell papilloma of the mouth or throat is generally diagnosed in people between the ages of 30 and 50, [1] and is normally found on the inside of the cheek, on the tongue, or inside of lips. Oral papillomas are usually painless, and not treated unless they interfere with eating or are causing pain. [ 1 ]
It usually occurs within the mouth, although sometimes mucosa in other parts of the gastrointestinal tract, urinary tract, or genitals may be affected. [10] [11] [12] The cause of leukoplakia is unknown. [6] Risk factors for formation inside the mouth include smoking, chewing tobacco, excessive alcohol, and use of betel nuts.
White sponge nevus (WSN) is an extremely rare autosomal dominant [4] condition of the oral mucosa (the mucous membrane lining of the mouth). It is caused by one or more mutations in genes coding for keratin, which causes a defect in the normal process of keratinization of the mucosa.