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NEUROLOGY 2004;62:2306-2309
© 2004 American Academy of Neurology
Brief Communications

Rhythmic teeth grinding induced by temporal lobe seizures

S. Meletti, MD PhD, G. Cantalupo, MD, L. Volpi, MD, G. Rubboli, MD, A. Magaudda, MD and C. A. Tassinari, MD

From the Division of Neurology (Drs. Meletti, Cantalupo, Volpi, Rubboli, and Tassinari), Department of Neurosciences, Bellaria Hospital, University of Bologna, and Department of Neurosciences (Dr. Magaudda), University of Messina, Italy.

Address correspondence and reprint requests to Dr. S. Meletti, Division of Neurology, Bellaria Hospital, University of Bologna, Via Altura no. 3, Bologna 40139, Italy; e-mail: stefano.meletti{at}neuro.unibo.it

The authors report the clinical and polygraphic features of rhythmic teeth grinding observed in a patient as the predominant symptom related to temporal lobe seizures during sleep and wakefulness. This observation demonstrates that exceptionally a teeth-grinding event can be not only a parasomnia (sleep bruxism) but also an epileptic-related motor event. Electromyographic and autonomic features of seizure-related teeth grinding support the interpretation of this motor phenomenon as a particular form of masticatory activity.

Received October 28, 2003. Accepted in final form February 11, 2004.

Additional material related to this article can be found on the Neurology Web site. Go to www.neurology.org and scroll down the Table of Contents for the June 22 issue to find the title link for this article.






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