Avaliação eletromiográfica de músculos do complexo crânio-cervico-umeral com o uso de dispositivo interoclusal

Abstract

In recent years, the relationship between oral alterations, postural deviations (bone and muscle) and pain in the whole cranio-cervico-umeral complex has been discussed. Chewing can be impaired by parafunctional habits such as tooth clenching, a common situation today due to anxiety and stress. The electrical activity of the masticatory and cervical muscles is quantified by surface electromyography. The use of occlusal splint helps in occlusal corrections with consequent postural improvements in the cranio-cervico-humeral complex and relief of painful symptoms. Some important postural muscles of the skull, cervical and humeral region are the masseter, trapezius and deltoid muscles. The aim of this study was to verify the electromyographic activity of the masseter, trapezius and deltoid muscles in masticatory, resting and maximal intercuspal movements in five volunteers who had cervical and / or masseter pain before the use of interocclusal plaques and after their use. 24 hours for 40 days and pain assessment by visual analog scale at the same time of data collection. Statistical analysis (test Friedman) was performed to evaluate the situations before and after the therapy adopted. It was noted that there was a decrease in electrical activity at rest for all analyzed muscles and balance of bilaterals muscles, especially the trapezius during the maximal intercuspidation. In addition, painful symptoms decreased when analogue visual scale data were analyzed before and after the use of plaque. It is concluded that the use of interocusal plaque promotes muscle balance and pain relief.