A fundamental study concerning the application of frontal EMG biofeedback training.

variation in microvibration

Abstract

Recently, one method of treating mandibular dysfunction has been through the use of relaxing the masticatory muscle by the use of frontal EMG biofeedback training. The effectiveness of this training method was evaluated by measuring and comparing the mean amplitude summation and total power value of the masseter microvibration (MV), as well as the power values of β₁ and β₂.

Results showed the masseter MV to be comparatively higher in all 4 categories during biting than the resting state, while a lower total power value of the masseter MV and β₁ power values were apparent due to frontal EMG biofeedback training. Furthermore, frontal EMG biofeedback training displayed no significant differences between the left and right masseter muscle MV parameters in regards to the above mentioned 4 categories.

In conclusion, by analyzing the various parameteters of masseter MV, it can be said that frontal EMG biofeedback training can be used as a method of relieving mandibular dysfunction symptoms which are thought to be brought about by psychological stress.