期刊
CLINICAL ORAL INVESTIGATIONS
卷 23, 期 9, 页码 3601-3611出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00784-018-2785-3
关键词
Bruxism; Electromyography; Masticatory muscles; Smartphone; Tooth clenching; Wireless body area network; Wearable electronic device
资金
- Lottery Health Research Grant, New Zealand Dental Association
- Discipline of Orthodontics at the University of Otago
- New Zealand Dental Association
- Pain@Otago research grants
Objectives To test a smartphone-assisted wireless device for assessing electromyographic (EMG) activity of the masseter muscle in freely moving individuals undertaking routine activities. Materials and Methods EMG activity was detected unilaterally from the masseter muscle in 12 volunteers using surface electrodes connected to both a smartphone-assisted wireless EMG device and a fixed-wired EMG equipment (reference standard). After performing a series of standardized tasks in the laboratory, participants wore the wireless device for 8 h while performing their normal routine. Results The wireless device reliably detected masseter muscle contraction episodes under both laboratory and natural environment conditions. The intraclass correlation coefficients for the muscle contraction episode amplitude and duration detected by the wireless and the wired equipment ranged from 0.94-1.00 to 0.82-1.00, respectively. Most masseter contraction episodes during normal routine were of low amplitude (< 10% MVC) and short duration (< 10 s), with no significant differences between sexes or facial side. Conclusions Within the limitations of the study, smartphone-assisted monitoring of the jaw muscles represents a promising tool to investigate oral behavior patterns in free moving individuals.
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