Voluntary regulation of the masseter muscle activity in healthy individuals vs. temporomandibular disorders patients. A potential diagnostic test
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Keywords

Función mandibular, electromiografía, control muscular.

How to Cite

Voluntary regulation of the masseter muscle activity in healthy individuals vs. temporomandibular disorders patients. A potential diagnostic test. (2019). Odontoestomatología, 19(30), 52-58. https://odon.edu.uy/ojs/index.php/ode/article/view/134

Abstract

Tis study analyzed the electrophysiological aspects of the voluntary control of the contractile activity of the masseter muscle studying a new variable, previously presented by our group. We conducted a comparative study among healthy volunteers and patients with temporomandibular disorders. We used
an experimental system that included real time visual feedback to control the contractile effort of the masseter muscle. The time that each individual needed to control the trajectory of motor activity was calculated for each electromyographic record. Coeficients of variation and standard deviations were different in the groups analyzed (p<0.01 and p= 0.02 respectively). We found a coefcient of variation greater than 0.936, which determines a 93.7% specifcity. Additionally, a 60% sensitivity was verifed. Tis new variable showed promising diagnostic potential, with high specifcity. Sensitivity can be increased if more repetitions are conducted for each individual, so as to better analyze the impact of dispersion

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