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Definition of Oromandibular dystonia

Oromandibular dystonia: A condition characterized by forceful contractions of the muscles of the jaw, lips, and tongue. The jaw may be pulled open or shut, and speech and swallowing can be difficult. Local injections of botulism toxin (Brand name: Botox) have been used as a treatment.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=4664
Last Editorial Review: 3/19/2012

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