Effects of a contingent vibratory stimulus delivered by an intra-oral device on sleep bruxism: a pilot study

Purpose Although sleep bruxism (SB) is one of the most important clinical problems in dental practice, there is no definitive method for controlling it. This pilot study evaluated the effects of contingent vibratory feedback stimuli using an occlusal splint for inhibition of sleep bruxism. Methods T...

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Bibliographic Details
Published in:Sleep & breathing 2019-03, Vol.23 (1), p.363-372
Main Authors: Nakamura, Hirotaka, Takaba, Masayuki, Abe, Yuka, Yoshizawa, Shuichiro, Suganuma, Takeshi, Yoshida, Yuya, Nakazato, Yukari, Ono, Yasuhiro, Clark, Glenn T., Baba, Kazuyoshi
Format: Article
Language:English
Subjects:
Adult
Arousal
Dentistry
Dentistry • Original Article
Electromyography
Equipment Design
Feedback
Female
Humans
Internal Medicine
Male
Masseter Muscle - physiopathology
Medicine
Medicine & Public Health
Neurology
Occlusal Splints
Otorhinolaryngology
Pediatrics
Pilot Projects
Pneumology/Respiratory System
Polysomnography
Sleep
Sleep Bruxism - diagnosis
Sleep Bruxism - physiopathology
Sleep Bruxism - therapy
Statistical analysis
Vibration - therapeutic use
Vibratory stimuli
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Summary:Purpose Although sleep bruxism (SB) is one of the most important clinical problems in dental practice, there is no definitive method for controlling it. This pilot study evaluated the effects of contingent vibratory feedback stimuli using an occlusal splint for inhibition of sleep bruxism. Methods Thirteen subjects with clinically diagnosed SB participated after providing an informed consent. Portable polysomnographic recordings were conducted in the subjects’ home environment to make a definitive SB diagnosis and to evaluate the effects of the vibratory stimuli on SB. A force-based bruxism detection system, which used a pressure-sensitive piezoelectric film embedded in the occlusal splint, was utilized to trigger vibration feedback stimuli, which was scheduled to be applied intermittently for 30 min, at 30-min intervals. Results The number of SB episodes (times/hour), the total SB duration (seconds/hour), the mean duration of SB episodes (seconds/episode), and the micro-arousal index (times/hour) were scored for each time period (with and without vibration). The effects of the vibration on these scores were tested (paired t test; p  
ISSN:1520-9512
1522-1709
DOI:10.1007/s11325-019-01782-x