Bruxism force detection by a piezoelectric film-based recording device in sleeping humans.

Abstract

AIMS:

To test the reliability and utility of a force-based bruxism detection system (Intra-Splint Force Detector [ISFD]) for multiple night recordings of forceful tooth-to-splint contacts in sleeping human subjects in their home environment.

METHODS:

Bruxism-type forces, i.e., forceful tooth-to-splint contacts, during the night were recorded with this system in 12 subjects (6 bruxers and 6 controls) for 5 nights in their home environment; a laboratory-based nocturnal polysomnogram (NPSG) study was also performed on 1 of these subjects.

RESULTS:

All 12 subjects were able to use the device without substantial difficulty on a nightly basis. The bruxer group exhibited bruxism events of significantly longer duration than the control group (27 seconds/hour versus 7.4 seconds/hour, P < .01). A NPSG study performed on 1 subject revealed that, when the masseter muscle electromyogram (EMG) was used as a "gold standard," the ISFD had a sensitivity of 0.89. The correlation coefficient between the duration of events detected by the ISFD and the EMG was also 0.89.

CONCLUSION:

These results suggest that the ISFD is a system that can be used easily by the subjects and that has a reasonable reliability for bruxism detection as reflected in forceful tooth-to-splint contacts during sleep.

• Authors: Kazuyoshi Baba, Glenn T Clark, Tatsutomi Watanabe, Takashi Ohyama
• Journal: Journal of orofacial pain (J Orofac Pain) Vol. 17 Issue 1 Pg. 58-64 ( 2003) ISSN: 1064-6655 [Print] United States
• PMID: 12756932 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Topics

• Adult
• Bite Force
• Case-Control Studies
• Electromyography
• Electronics (instrumentation)
• Equipment Design
• Female
• Humans
• Male
• Masseter Muscle (physiopathology)
• Muscle Contraction
• Occlusal Splints
• Polysomnography (instrumentation)
• Reproducibility of Results
• Sensitivity and Specificity
• Sleep Bruxism (physiopathology)
• Time Factors