期刊
JOURNAL OF DENTAL RESEARCH
卷 90, 期 5, 页码 665-671出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0022034510393516
关键词
sleep bruxism; rhythmic masticatory muscle activity; gastroesophageal reflux; acid infusion; esophagus
资金
- Japan Society for the Promotion of Science [20592409, 20390524]
- Grants-in-Aid for Scientific Research [21592608, 22659377, 20592409, 20390524] Funding Source: KAKEN
The aim of this cross-over, randomized, single-blinded trial was to examine whether intra-esophageal acidification induces sleep bruxism (SB). Polysomnography with electromyogram (EMG) of masseter muscle, audio-video recording, and esophageal pH monitoring were performed in a sleep laboratory. Twelve healthy adult males without SB participated. Intra-esophageal infusions of 5-mL acidic solution (0.1 N HCl) or saline were administered. The frequencies of EMG bursts, rhythmic masticatory muscle activity (RMMA) episodes, grinding noise, and the RMMA/microarousal ratio were significantly higher in the 20-minute period after acidic infusion than after saline infusion. RMMA episodes including SB were induced by esophageal acidification. This trial is registered with the UMIN Clinical Trials Registry, UMIN000002923.
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