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ID 57750
Author
Miki, Haruna Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Minakuchi, Hajime Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Kakenhi
Miyagi, Mayu Department of Stomatgnathic Function and Occlusal Reconstruction, Institute of Biomedical Sciences, Clinical Dentistry, Tokushima University Graduate School
Hara, Emilio Satoshi Department of Biomaterials, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences ORCID Kakenhi publons
Shigemoto, Shuji Department of Fixed Prosthodontics, School of Dental Medicine, Tsurumi University
Suzuki, Yoshitaka Department of Stomatgnathic Function and Occlusal Reconstruction, Institute of Biomedical Sciences, Clinical Dentistry, Tokushima University Graduate School
Maekawa, Kenji Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Matsuka, Yoshizo Department of Stomatgnathic Function and Occlusal Reconstruction, Institute of Biomedical Sciences, Clinical Dentistry, Tokushima University Graduate School
Clark, Glenn T. Advanced Program in Orofacial Pain and Oral Medicine, Ostrow School of Dentistry, University of Southern California
Kuboki, Takuo Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Kakenhi
Abstract
OBJECTIVE:
This study aims to verify the associations among sleep bruxism (SB), sleep arousal (SA) and concurrent body movements.
MATERIAL AND METHODS:
Subjects underwent a standard overnight polysomnography test and audio-video recordings. Sleep quality was evaluated according to the Rechtschaffen and Kales criteria, while SA was determined as per the American Sleep Disorders Association criteria. Analyses were performed by an external institution after masking of the subjects' information. SB was assessed based on the presence/absence of rhythmic masticatory muscle activity (RMMA) episodes, which were identified by using electromyography of the masseter muscle. The observed simultaneous movements included lower leg movement (LLM), swallowing, face scratching, head movement, body movement, eye blinking, coughing, licking, sighing, body scratching, lip sucking, somniloquy and yawning. The LLM was determined visually, as well as through an increase in the tibialis electromyogram signal. Other movements were visually assessed using audio-video recordings. The incidences of all the simultaneous movements were compared between RMMA with intercurrent SA (SAwRMMA; RMMA episode derived from a masseter electromyogram showing more than 10% of maximum voluntary contraction) and SA without RMMA (SAw/oRMMA).
RESULTS:
Fourteen subjects were included in this study (females/males: 4/10, mean age: 31.5 ± 5.7 years). Among these, LLM, swallowing, body movement, licking, body scratching and lip sucking were frequently observed in SAwRMMA episodes than in SAw/oRMMA episodes, significantly. However, the non-specific simultaneous movements were higher observed in SAw/oRMMA episodes than that in SAwRMMA.
CONCLUSION:
Our results suggest that SB is concurrently activated with LLM in relation to arousal.
Keywords
concomitant movement
non-specific simultaneous movements
polysomnography assessment
rhythmic masticatory muscle activity
sleep arousal
sleep bruxism
Note
This fulltext will be available in Nov 2020
Published Date
2019-11-19
Publication Title
Journal of Oral Rehabilitation
Publisher
Wiley
ISSN
0305-182X
NCID
AA00704042
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
File Version
author
PubMed ID
DOI
Web of Science KeyUT
Related Url
isVersionOf https://doi.org/10.1111/joor.12913
Funder Name
Ministry of Education, Culture, Sports, Science and Technology
助成番号
23390442
25670819