Dyskinesia

Dyskinesia (dys: abnormal, kinesia: movement) refers to repeated involuntary movements such as licking of he lips or chewing-like movements. Oral dyskinesia consists of abnormal, involuntary, uncontrollable movements that predominantly affect the tongue, lips, and jaw. They often vary in complexity, distribution, and severity. They might go unnoticed or result in social embarrassment, traumatic oral injuries, speech difficulties, chewing or eating disorders, an inability to wear dentures, or problems at work. In some cases, repeated dyskinetic movement results in frequent contact with the teeth, causing ulcers to form or trauma (Fig. 6).