Electromyographic study for evaluation of jaw muscle function usingdigital signal processing technology

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The aim of this study was to examine surface electromyography for evaluating stomatognathic function by using signal processing technology. The muscle activity was recorded simultaneously with the needle electrode and the multi channel array surface electrode. With the signal-averaging technique, the surface electromyogram (EMG) signals that synchronized with the needle EMG signals were calculated. These signals indicated whether the regional activity inside the muscle was reflected on the surface EMG. It is suggested that the activity inside muscle would be speculated from the surface EMG processed by the digital signal processing technology. These results may contribute the development of the surface EMG inspection.