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Contingent electrical lip stimulation for sleep bruxism: a pilot study.
Keisuke Nishigawa1, Kazuo Kondo, Hisahiro Takeuchi
1Department of Fixed Prosthodontics, School of Dentistry, Tokushima University, Tokushima, Japan.
The Journal of Prosthetic Dentistry
|April 12, 2003
Summary
Electrical lip stimulation significantly reduced the duration of sleep bruxism events. This promising feedback method offers a potential new approach for managing sleep bruxism without disrupting sleep.
Area of Science:
- Neurology
- Sleep Medicine
- Biomedical Engineering
Background:
- Sleep bruxism management remains a challenge, with limited effective treatment options.
- Contingent feedback methods have shown potential for controlling sleep bruxism.
Purpose of the Study:
- To evaluate the efficacy of contingent electrical lip stimulation in reducing sleep bruxism.
- This study served as a demonstration of concept for a novel sleep bruxism intervention.
Main Methods:
- Masseter muscle activity was recorded for 5 nights in 7 subjects with bruxism.
- A device delivered electrical lip stimulation triggered by teeth clenching during sleep.
- Paired t-tests analyzed changes in bruxism event frequency, amplitude, duration, and total time.
Main Results:
- Electrical lip stimulation reduced the number of bruxism events per hour.
- Mean amplitude and total event time of bruxism also decreased with stimulation.
- Only the duration of individual bruxism events showed a statistically significant reduction (P=.038).
Conclusions:
- Contingent electrical lip stimulation demonstrated noteworthy reductions in sleep bruxism events.
- The observed improvements suggest potential for this method, even when applied intermittently.
- No participants reported being awakened by the stimulation, indicating good sleep tolerance.