Comparison of the Activity of Left and Right Masseter Muscles of Normal Individuals and Patients with Mandibular Dysfunction During Experimental Stress

Author:

Yemm R.1

Affiliation:

1. The Dental School, University of Bristol, England

Abstract

Patients with mandibular dysfunction were subjected to experimental stress. Electromyograms of left and right masseter muscles showed that during the stress period, similar patterns of activity were induced in both muscles, despite the presence of tenderness in only one of the muscles. It is suggested that this and earlier findings support the hypothesis that stress-induced muscle activity is a contributory factor in the etiology of mandibular dysfunction.

Publisher

SAGE Publications

Subject

General Dentistry

Reference11 articles.

1. Ramfjord, S.P., and Ash, M.M.: Occlusion, Philadelphia: W. B. Saunders Co., 1966, p 161.

2. Moulton, R.E.: In Schwartz, L. and Chayes, C.M. (eds): Facial Pain and Mandibular Dysfunction . Philadelphia: W. B. Saunders Co. , 1968, p 324.

3. Variations in the electrical activity of the human masseter muscle occurring in association with emotional stress

4. A comparison of the electrical activity of masseter and temporal muscles of human subjects during experimental stress

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