Ambulatory polysomnography for the assessment of sleep bruxism.

Department of Prosthodontics and Material Sciences, University of Muenster, Muenster, Germany.
Journal of Oral Rehabilitation (Impact Factor: 1.93). 09/2008; 35(8):572-6. DOI: 10.1111/j.1365-2842.2008.01902.x
Source: PubMed

ABSTRACT Ambulatory polysomnography (PSG) is introduced as a new method for assessing sleep bruxism. Nocturnal recordings of masseter electromyography (EMG), electro-encephalography, electro-oculography, electrocardiography, thoracic effort and body position allow for the detection of typical nocturnal masseter activity as well as the determination of sleep stages. Twelve patients with a clinical diagnosis of bruxism were assessed with the ambulatory PSG, all of them fulfilled diagnostic PSG criteria according to Kato et al. (Dent Clin North Am. 2001; 45: 657-684). Per hour of sleep patients showed 34.2 (+/-10.6) EMG bursts and 5.6 (+/-1.3) sleep bruxism episodes. Because of the ability to determine sleep stages and the application in the home environment the ambulatory PSG represents a cost-saving alternative to sleep laboratory investigations that might be especially useful in field studies and clinical application.

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