Association between nocturnal bruxism and gastroesophageal reflux

Shouichi Miyawaki, Yuko Tanimoto, Yoshiko Araki, Akira Katayama, Akihito Fujii, Teruko Takano-Yamamoto

研究成果: Article査読

58 被引用数 (Scopus)

抄録

Study Objective: To examine the relationship between nocturnal bruxism and gastroesophageal reflux. Design: Controlled descriptive study and double-blind, placebo-controlled, clinical study. Setting: Portable pH monitoring, electromyography, and audio-video recordings were conducted during the night in the subjects' home. Participants: Ten patients with bruxism and 10 normal subjects were matched for height, weight, age, and sex. They did not have symptoms of gastroesophageal reflux disease. Intervention: Medication with a proton pump inhibitor (ie, a gastric-acid-inhibiting drug). Measurements and Results: The bruxism group showed a significantly higher frequency of nocturnal rhythmic masticatory muscle activity (RMMA) episodes (mean ± SD: 6.7 ± 2.2 times per hour) and a higher frequency and percentage of time of gastroesophageal reflux episodes with a pH less than 4.0 and 5.0 (0.5 ± 0.9 and 3.6 ± 1.6 times per hour and 1.3% + 2.5% and 7.4% ± 12.6%, respectively) than the control group (RMMA episodes: 2.4 ± 0.9 times per hour; gastroesophageal reflux episodes; 0.0 ± 0.0 and 0.1 ± 0.3 times per hour and 0.0% ± 0.0% and 0.0% ± 0.0%, respectively). In the bruxism group, 100% of the gastroesophageal reflux episodes with a pH less than 3.0 and 4.0 included both an RMMA episode and an electromyographic burst, the duration of which was approximately 0.5 to 1.0 seconds, probably representing swallowing of saliva. The majority of gastroesophageal reflux episodes with a pH of 4.0 to 5.0 also included both an RMMA episode and an electromyographic burst in the control and bruxism groups (100% ± 0.0% vs 70 7% ± 16.5%), again probably due to swallowing of saliva. The remaining minority of gastroesophageal reflux episodes with a pH of 4.0 to 5.0 contained only an electromyographic burst (swallowing of saliva). The frequency of RMMA episodes after the release of the medication from the proton pump inhibitor, which increased the gastric and esophageal pH, was significantly lower than that after administration of the placebo in the control and bruxism groups (1.0 ± 0.6 vs 1.9 ± 3.2 times per hour, and 3.7 ± 1.9 vs. 6.0 ± 2.2 times per hour, respectively). Conclusions: Nocturnal bruxism may be secondary to nocturnal gastroesophageal reflux, occurring via sleep arousal and often together with swallowing. The physiologic link between bruxism and the increase in salivation needs to be investigated.

本文言語English
ページ(範囲)888-892
ページ数5
ジャーナルSleep
26
7
DOI
出版ステータスPublished - 2003 11月 1

ASJC Scopus subject areas

  • 臨床神経学
  • 生理学(医学)

フィンガープリント

「Association between nocturnal bruxism and gastroesophageal reflux」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル