TY - JOUR
T1 - Relationships among nocturnal jaw muscle activities, decreased esophageal pH, and sleep positions
AU - Miyawaki, Shouichi
AU - Tanimoto, Yuko
AU - Araki, Yoshiko
AU - Katayama, Akira
AU - Imai, Mikako
AU - Takano-Yamamoto, Teruko
N1 - Funding Information:
This study was partially supported by grants-in-aid for scientific research to Drs Miyawaki, Tanimoto, and Takano-Yamamoto from the Japan Society for the Promotion of Science.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2004/11
Y1 - 2004/11
N2 - The purpose of this study was to examine the relationships among nocturnal jaw muscle activities, decreased esophageal pH, and sleep positions. Twelve adult volunteers, including 4 bruxism patients, participated in this study. Portable pH monitoring, electromyography of the temporal muscle, and audio-video recordings were conducted during the night in the subjects' homes. Rhythmic masticatory muscle activity (RMMA) episodes were observed most frequently, with single short-burst episodes the second most frequent. The frequencies of RMMA, single short-burst, and clenching episodes were significantly higher during decreased esophageal pH episodes than those during other times. Both the electromyography and the decreased esophageal pH episodes were most frequently observed in the supine position. These results suggest that most jaw muscle activities, ie, RMMA, single short-burst, and clenching episodes, occur in relation to gastroesophageal reflux mainly in the supine position.
AB - The purpose of this study was to examine the relationships among nocturnal jaw muscle activities, decreased esophageal pH, and sleep positions. Twelve adult volunteers, including 4 bruxism patients, participated in this study. Portable pH monitoring, electromyography of the temporal muscle, and audio-video recordings were conducted during the night in the subjects' homes. Rhythmic masticatory muscle activity (RMMA) episodes were observed most frequently, with single short-burst episodes the second most frequent. The frequencies of RMMA, single short-burst, and clenching episodes were significantly higher during decreased esophageal pH episodes than those during other times. Both the electromyography and the decreased esophageal pH episodes were most frequently observed in the supine position. These results suggest that most jaw muscle activities, ie, RMMA, single short-burst, and clenching episodes, occur in relation to gastroesophageal reflux mainly in the supine position.
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U2 - 10.1016/j.ajodo.2004.02.007
DO - 10.1016/j.ajodo.2004.02.007
M3 - Article
C2 - 15520695
AN - SCOPUS:7544246247
VL - 126
SP - 615
EP - 619
JO - American Journal of Orthodontics and Dentofacial Orthopedics
JF - American Journal of Orthodontics and Dentofacial Orthopedics
SN - 0889-5406
IS - 5
ER -