Clinical Use of Qualitative Electromyography in the Evaluation of Jaw Muscle Function: A Practitioner's Guide (White Paper)

Abstract:

Electromyography (EMG) has a long history of application in the study of functional jaw muscle anatomy.1 Normal, healthy jaw muscles are able to both contract with adequate force in a coordinated manner and to relax during mandibular rest. However, the assessment of these basic functions through palpation and visual observation is not always sufficient when rendering a diagnosis of muscular dysfunction. When a more comprehensive understanding is necessary, EMG is the only reliable method available for the objective recording of a patient's muscular function. Because dysfunctional muscle activity may be the cause and/or the result of other factors of investigatory interest, the application of electromyography is appropriate in diagnosis and treatment.