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Comparison of the occurrence of sleep bruxism under accustomed conditions at home and under polysomnography conditions in a sleep laboratory

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Title: Comparison of the occurrence of sleep bruxism under accustomed conditions at home and under polysomnography conditions in a sleep laboratory
Authors: Sakuma, Toshimitsu Browse this author
Yamaguchi, Taihiko Browse this author →KAKEN DB
Maeda, Masana Browse this author →KAKEN DB
Saito, Taishi Browse this author
Nakamura, Hironobu Browse this author
Mikami, Saki Browse this author →KAKEN DB
Saito, Miku Browse this author →KAKEN DB
Nakajima, Toshinori Browse this author →KAKEN DB
Mizuno, Mariko Browse this author →KAKEN DB
Yamada, Kyoko Browse this author →KAKEN DB
Takahashi, Sota Browse this author
Takahashi, Mebae Browse this author
Yachida, Wataru Browse this author →KAKEN DB
Satoh, Kaoru Browse this author
Keywords: Sleep bruxism
Wearable electromyographic device
Sleep laboratory
Sleep environment
Issue Date: 7-Oct-2022
Publisher: Japan Prosthodontic Society
Journal Title: Journal of prosthodontic research
Volume: 66
Issue: 4
Start Page: 630
End Page: 638
Publisher DOI: 10.2186/jpr.JPR_D_21_00219
PMID: 35095085
Abstract: Purpose: We aimed to clarify the relationship between the number of sleep bruxism (SB) bursts at home and in a laboratory equipped with polysomnography with audio-video recording (PSG-AV). We applied an identical single-channel wearable electromyography (EMG) device for both types of SB burst scorings. Methods: The subjects were 20 healthy student volunteers (12 men and 8 women; mean age, 21.9 years) who were clinically diagnosed with bruxism based on the criteria set forth by the International Classification of Sleep Disorders (ICSD-2). We used a wearable EMG device attached to the masseteric area (the FLA-500-SD [FLA]), for scoring SB bursts at home and in the laboratory. PSG-AV was set within the laboratory environment as well. The mean interval for both sleep studies was 28.8 days. EMG bursts with amplitudes greater than twice the baseline amplitude and with durations of longer than 0.25 s were selected. EMG bursts with amplitudes >= 5% MVC (maximum voluntary contraction), >= 10% MVC, and >= 20% MVC were selected as well. A cluster of bursts was defined as an episode. Results: In all the conditions for selecting EMG bursts specified above, the number of SB bursts and episodes recorded under laboratory conditions was statistically significantly smaller than that recorded at home. There were no statistically significant differences between the data obtained on the first and second recording days. Conclusion: The results of this study suggest that the unfamiliar environment of a sleep laboratory equipped with PSG-AV affects the emergence of SB as compared with home conditions.
Type: article
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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