Treino mastigatório e exercícios de lábios realizados em associação a fotobiomodulação na pessoa com trissomia do 21

Abstract

Objective: To investigate whether the application of photobiomodulation combined with lip exercises and masticatory training enhances the performance of the orbicularis oris, masseter, and temporalis muscles in individuals with Trisomy 21. Methods: This is an interventional and longitudinal (5 weeks) study involving three groups: G1 (lip pressure), G2, and G3 (bite force). All participants underwent assessments conducted before and after the intervention. Group G1 performed lip exercises combined with low-level laser photobiomodulation. Groups G2 and G3 underwent masticatory training with the application of active and placebo low-level laser therapy, respectively. Results: G1 showed progressive improvement in lip pressure over the weeks, though not statistically significant, possibly due to the small sample size. G2 and G3 presented irregular bite force results, with decreases in some weeks. Conclusion: Photobiomodulation combined with the proposed exercises showed positive effects on lip musculature (G1), supporting previous studies. For the masticatory groups, findings remain inconclusive, suggesting the need for further research with larger samples and adjustments in dosage and power applied to the masseter and temporalis muscles.