Jaw-opening oromandibular dystonia secondary to Wilson's Disease treated with botulinum toxin type A

we have reported a case series of five patients with jaw-opening oromandibular dystonia secondary to wilson's disease (wd), in which the patients were treated with botulinum toxin type a (btx-a). in all cases, dystonia score was partially reduced three weeks after injections. the most common side effect was transient mild dysphagia. this preliminary study showed that jaw-opening oromandibular dystonia in wd may be partially responsive to the use of btx-a.