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J Korean Sleep Res Soc > Volume 8(1); 2011 > Article
ORIGINAL ARTICLE
J Korean Sleep Res Soc. 2011;8(1):9-13.         doi: https://doi.org/10.13078/jksrs.11003
Polysomnographic Study of Sleep Bruxism in Adults: Preliminary Study
Hyeyun Kim, Hyun Jeong Han
Department of Neurology, Myongji Hospital, Kwandong University College of Medicine, Goyang, Korea
Corresponding Author: Hyun Jeong Han ,Tel: +82-2-2019-3320, Fax: +82-2-3462-5904, Email: koreasleep@empal.com
Received: May 23, 2011   Accepted: June 17, 2011   Published online: June 30, 2011
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ABSTRACT
Objectives: Sleep bruxism is the grinding of teeth during sleep. Sleep bruxism may also be associated with various sleep disorders. However, little is known about sleep structures and disturbances of sleep bruxism. This study was aim at study of sleep architectures using overnight polysomnography in patients with sleep bruxism.
Methods: We retrospectively analyzed sleep parameters and architectures in 10 healthy subjects and 13 patients with sleep bruxism. Overnight polysomnography (PSG) and sleep questionnaires including Epworth sleepiness scale (ESS), Beck Depression Inventory (BDI) were performed. The sleep variables included proportions of rapid eye movement (REM) sleep, non-REM sleep such as N1, N2 and N3, total sleep time (TST), sleep efficiency (SE), wake after sleep onset (WASO), Periodic limbs movement during sleep (PLMS) index, respiratory disturbance index (RDI), latency to sleep onset were analyzed between control and sleep bruxism groups.
Results: TST, the proportion of non-REM and REM sleep, sleep efficiency, PLMS index and Epworth questionnaire showed not differences between SB and control. Arousal index and BDI in SB were significantly higher than controls (both, p<0.05).
Conclusions: In contrast to previous studies, we suggest that patients with sleep bruxism are not good sleeper based on polysomnography study. Further studies will be required to assess the sleep quality of sleep bruxer.
Keywords: Sleep | Polysomnography | Sleep bruxism.
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