Orolingual dyskinesias are often related to drugs such as dopamine receptor-blocking agents. It may occur in relation to neurodegenerative disorders (Huntington’s disease, neuroacanthocytosis) or neuropsychiatric conditions (chronic schizophrenia, Rett syndrome, dementia). Further, it also may be induced spontaneously or peripherally (edentulousness or ill-fitting prosthesis).
Occasionally dentists or oral surgeons experience improvement in orolingual dyskinesia after insertion of adequate dentures in patients who do not have dentures or have ill-fitting dentures. Sutcher et al. showed in their series of studies that dental prosthetic therapy is effective not only in spontaneous orofacial dyskinesia but also tardive orofacial dyskinesia. A video on YouTube shows a case in which orolingual dyskinesia significantly improved immediately after denture adjustment (https://youtu.be/Wn4YoFtPpjI). Naturally, dental prosthetic therapy is not effective in all cases with orolingual dyskinesia, but there are some cases in which it is very effective. When talking about this, some neurologists assert that it is a “superstition”. What do you think about this?
Dear prosthodontic specialists, oral surgeons, practicing dentists,
Have you ever experienced cases where involuntary movements improved dramatically after prosthetic treatment?
I believe that dental professionals should participate in the diagnosis and treatment of involuntary movements in the stomatognathic region.
Kazuya Yoshida
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