Efeito imediato de cluster de LED nos músculos mastigatórios em crianças e adolescentes com diagnóstico de síndrome de down

Abstract

Individuals diagnosed with Down Syndrome (DS) often present with muscle hypotonia, particularly affecting the facial and oropharyngeal muscles involved in the mastication cycles. This condition impairs essential functions such as swallowing, speech, and chewing. Additionally, the observed lingual hypotonia in individuals with DS can lead to issues such as snoring, obstructive sleep apnea, and bruxism. This study aimed to evaluate the activity of the masticatory muscles (masseter and temporal) in individuals with Down Syndrome and bruxism through electromyographic analysis, both before and after the application of red LED clusters. Fifteen participants aged 4 to 17 years with a diagnosis of Down Syndrome and bruxism were assessed at the integrated health clinic of UNINOVE. The selected participants underwent electromyography examination of the masticatory muscles (right and left masseter and right and left temporal) before and after the application of red LED clusters. Each cluster contains 6 LEDs with a wavelength of 660 nm, an optical point of 5 ± 2 mm, a dose of 2.675 J/cm², and an optical output of 2-5 mW. The data were analyzed for distribution using the Shapiro-Wilk test. Since the data showed a non-normal distribution, they were analyzed using the Mann-Whitney test. The significance level adopted was α = 0.05 and there was no significant difference presented in the data studied in relation to the electromyographic analysis in the target muscles (right temporal, left temporal, right masseter and left masseter) in relation to the masticatory cycles with less and more consistent foods and at rest before and after application of the red LED cluster.