Oromandibular dystonia induced by olanzapine and mirtazapine: A case report

Abstract Background Dystonia has been reported as an adverse effect of antipsychotic medications; however, dentists rarely detect the symptoms because of the complexity of complaints. Case Presentation A 74‐year‐old woman presented with an open bite and jaw pain. She reported a history of depression and was being treated with medication including olanzapine. We diagnosed the patient with oromandibular dystonia. Her psychiatrist withdrew olanzapine treatment following consultation, and the open bite and jaw pain were resolved. Conclusion Dentists should consider oromandibular dystonia when a patient taking antipsychotic medication complains of an open bite. Irreversible procedures should be avoided in these patients.