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Related Experiment Video

Updated: Jul 3, 2026

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

Published on: January 27, 2018

Transient tardive dystonia: overview and case presentation.

Mary V Seeman¹, David Clodman, Gary Remington

¹University of Toronto Institute of Medical Science, Toronto, Ontario, Canada M5S1A8. mary.seeman@utoronto.ca

Journal of Psychiatric Practice

|July 31, 2008

Summary

Transient oromandibular dystonia occurred after a dental filling in a patient on quetiapine. Symptoms resolved with medication adjustment and benztropine, suggesting a dental procedure can trigger dystonia in susceptible individuals.

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Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

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Implantation of Osmotic Pumps and Induction of Stress to Establish a Symptomatic, Pharmacological Mouse Model for DYT/PARK-ATP1A3 Dystonia

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Published on: September 12, 2020

Area of Science:

Neurology
Psychiatry

Background:

Dystonia involves involuntary muscle contractions causing abnormal postures.
Tardive dystonia, a persistent form, arises from long-term dopamine antagonist use, affecting ~3% of antipsychotic patients.
Drug-induced dystonia can be transient, resolving upon dose reduction or drug cessation.

Observation:

A case of transient oromandibular dystonia following a dental filling is presented.
The patient was receiving quetiapine, a second-generation antipsychotic.
The dystonia's timing, location, and transient nature suggested the dental procedure as a potential trigger.

Findings:

The oromandibular dystonia resolved within 8 weeks.
Treatment involved benztropine and a reduced quetiapine dosage.
Symptoms did not recur after discontinuing benztropine.

Implications:

This case highlights that dental procedures may transiently trigger dystonia in patients on antipsychotics.
Prompt management, including medication adjustment, can effectively treat such cases.
Recommendations are provided for psychiatric clinicians managing patients at risk for drug-induced dystonia.