to measure strength of the deep anterior neck muscles with a new measurement protocol and by using the NOD device, a dynamometer, in subjects with and without bruxism, and compared to EMG on the superficial muscles of the anterior neck and the masseter muscle.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
activation score = AS
Timeframe: baseline
performance index= PI
Timeframe: baseline