Journal
JOURNAL OF ORAL REHABILITATION
Volume 35, Issue 8, Pages 638-645Publisher
WILEY
DOI: 10.1111/j.1365-2842.2008.01864.x
Keywords
jaw elevator muscles; surface electromyography; motor unit
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Surface electromyography (EMG) allows the non-invasive investigation of the bioelectrical phenomena of muscular contraction. The clinical application of surface EMG recordings has been long debated. This paper reviews the main limitations and the current applications of the surface EMG in the investigation of jaw elevator muscles. Methodological factors associated with the recording of the surface EMG may reduce the reliability and sensitivity of this technique and may have been the cause of controversial results reported in different studies. Despite these problems, several clinical applications of surface EMG in jaw muscles are promising. Moreover, technological advances in signal detection and processing have improved the quality of the information extracted from the surface EMG and furthered our understanding of the anatomy and physiology of the stomatognathic apparatus.
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