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Tardive dyskinesia is characterized by repetitive, involuntary movements, which occurs following treatment with medication (hence the term tardive). [9] Some examples of these types of involuntary movements include: [10] Grimacing; Tongue movements; Lip smacking; Lip puckering; Pursing of the lips; Excessive eye blinking
Chapped lips (also known as cheilitis simplex [5] or common cheilitis) [6] is characterized by the cracking, fissuring, and peeling of the skin of the lips, and is one of the most common types of cheilitis. [5] [7] While both lips may be affected, the lower lip is the most common site. [7]
Bell's palsy is the most common cause of acute facial nerve paralysis. [3] [4] There is no known cause of Bell's palsy, [5] [6] although it has been associated with herpes simplex infection. Bell's palsy may develop over several days, and may last several months, in the majority of cases recovering spontaneously.
The mentalis muscle causes a weak upward-inward movement of the soft tissue complex of the chin. [2] This raises the central portion of the lower lip. [2] In the setting of lip incompetence (the upper and lower lips not touching each other at rest), the contraction of the mentalis muscle can bring temporary but strained oral competence.
Hemifacial spasm (HFS) is a rare neuromuscular disease characterized by irregular, involuntary muscle contractions on one side (hemi-) of the face (-facial). [1] The facial muscles are controlled by the facial nerve (seventh cranial nerve), which originates at the brainstem and exits the skull below the ear where it separates into five main branches.
Discover dermatologist-recommended options. These moisturizing lip balms will nurse dry, chapped lips back to a plump and hydrated state. Discover dermatologist-recommended options.
It provides sensation to the front of the chin and the lower lip, as well as the gums of the anterior mandibular (lower) teeth. It can be blocked with local anaesthesia for procedures on the chin, lower lip, and mucous membrane of the inner cheek. Problems with the nerve cause chin numbness.
Sarcoidosis—there may be parotitis alone or uveoparotitis (inflammation of both the parotid and the uvea of the eyes), which occurs in Heerfordt's syndrome. Cheilitis glandularis —This is inflammation of the minor salivary glands, usually in the lower lip, eversion and swelling of the lip.