Effects of Photobiomodulation on Orofacial Function and Electromyography in Children and Adolescents With Down Syndrome: A Preliminary Case Series.

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Journal of biophotonics Pub Date : 2025-09-03 DOI:10.1002/jbio.202500294

Monise Mendes Rocha, Rafael Zaratin Beltramin, Fabiano Politti, Raquel Agnelli Mesquita-Ferrari, Sandra Gouveia Spínola, Amanda Rafaelly Honório Mandetta, Kristianne Porta Santos Fernandes, Ana Paula Taboada Sobral, Cinthya Cosme Gutierrez Duran, Lara Jansiski Motta, Sandra Kalil Bussadori

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Abstract

Introduction: Down syndrome (DS) causes motor and cognitive impairments, including hypotonia that compromises orofacial functions.

Objective: To report the effects of LED photobiomodulation (PBM) on masticatory muscle stability and orofacial function in children and adolescents with DS.

Methods: Five individuals with DS underwent three PBM sessions. Orofacial function was assessed using the NOT-S protocol and electromyography measured masseter and temporalis muscle activity.

Results: Electromyography showed greater muscle stability, reduced variability in electrical signals, and more balanced chewing forces. The NOT-S indicated improvements in nasal breathing and salivation control. However, discrepancies were observed between clinical findings and questionnaire responses, mainly in chewing function.

Conclusion: PBM with red LED may represent a promising complementary approach for supporting orofacial function and muscle stability in children and adolescents with DS. However, these preliminary observations require confirmation through future studies with larger, more homogeneous samples and long-term follow-up.

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光生物调节对唐氏综合症儿童和青少年口面部功能和肌电图的影响：初步病例系列。

唐氏综合症（DS）导致运动和认知障碍，包括损害口腔面部功能的张力低下。目的：报道LED光生物调节（PBM）对儿童和青少年退行性椎体滑移患者咀嚼肌稳定性和口面部功能的影响。方法：5例DS患者接受了3次PBM治疗。采用NOT-S方案评估口面部功能，肌电图测量咬肌和颞肌活动。结果：肌电图显示肌肉更稳定，电信号变异性减少，咀嚼力更平衡。NOT-S表明鼻呼吸和唾液控制有所改善。然而，临床结果与问卷调查结果之间存在差异，主要是在咀嚼功能方面。结论：PBM与红色LED可能是支持儿童和青少年退行性椎体滑移患者口面部功能和肌肉稳定性的一种有希望的补充方法。然而，这些初步观察结果需要通过未来更大、更均匀的样本和长期随访的研究来证实。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of biophotonics

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