title: A comparison of jaw-closing and jaw-opening idiopathic oromandibular dystonia.
abstract: Oromandibular dystonia (OMD) is a form of focal dystonia that affects masticatory, lower facial, and lingual muscles. We compared the clinical variables and response to treatment between patients with idiopathic jaw-closure C-OMD (n = 11) and jaw-opening dystonia O-OMD (n = 12) seen in our Movement Disorders clinic over the last 10 years. The co-existence of dystonia in other regions and sensory tricks were significantly more prevalent in O-OMD (P = 0.049 and 0.03, respectively). Male gender, orobuccolingual dyskinesias (facial grimacing, lip biting, tongue dyskinesias, platysma contractions and bruxism) and better response to botulinum toxin injections were more frequent in C-OMD but remained a trend.
authors.affiliation: Miller School of Medicine, Department of Neurology University of Miami, 1501 NW 9th Avenue (NPF), Room 4004, Miami, FL 33136, USA. csinger@med.miami.edu
authors.forename: Carlos
authors.initials: C
authors.lastname: Singer
authors.forename: Spiridon
authors.initials: S
authors.lastname: Papapetropoulos
mesh_terms: D019274:Botulinum Toxins, Type A / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007568:Jaw / Q000502:physiology*; D008297:Male; D008410:Masticatory Muscles / Q000503:physiopathology; D008538:Meige Syndrome / Q000188:drug therapy / Q000503:physiopathology*; D008875:Middle Aged; D009465:Neuromuscular Agents / Q000627:therapeutic use; D012189:Retrospective Studies
chemical_list: D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A