Programa de Pós-graduação em Ciências Fonoaudiológicas, Universidade Federal de Minas Gerais - UFMG - Belo Horizonte (MG), Brasil.
Departamento de Fonoaudiologia, Faculdade de Medicina, Universidade Federal de Minas Gerais - UFMG - Belo Horizonte (MG), Brasil.
Codas. 2022 Jan 5;34(2):e20210024. doi: 10.1590/2317-1782/20212021024. eCollection 2022.
To verify the immediate effects of different doses of photobiomodulation on maximum lip pressure.
Experimental, randomized and triple-blind study. The sample consisted of 23 women and 17 men, age between 18 and 33 years old (average 23.18 years old, SD=2.1), distributed in four groups: CG (control group), G1, G4 and G7. The maximum pressure was assessed with the Iowa Oral Performance Instrument (IOPI). The bulb was placed between the lips and the participants were instructed to press it as strong as possible. Infrared LASER (808 nm), manufactured by DMC, Therapy EC model, 100 mW of power output, was applied. The doses tested were 1 J (G1), 4 J (G4) and 7 J (G7), applied at six points of the orbicularis oris muscle. In the CG there was no intervention. The evaluation procedures were repeated after the LASER application. The results were analyzed with a significance level of 95%.
The maximum lip pressure increased significantly only in the group irradiated with 7 J.
Low level LASER therapy with 7 J dose promoted changes in the performance of the orbicularis oris muscle in the maximum pressure task.
验证不同剂量的光生物调节对最大唇压的即时影响。
实验、随机、三盲研究。样本由 23 名女性和 17 名男性组成，年龄在 18 至 33 岁之间（平均 23.18 岁，标准差=2.1），分为 4 组：CG（对照组）、G1、G4 和 G7。最大压力使用爱荷华口腔表现仪（IOPI）进行评估。将灯泡置于嘴唇之间，指导参与者尽可能用力按压。使用 DMC 制造的 Therapy EC 型号的 808nm 红外 LASER，输出功率为 100mW。测试的剂量分别为 1J（G1）、4J（G4）和 7J（G7），应用于口轮匝肌的六个点。CG 组没有干预。在 LASER 应用后重复评估程序。结果用 95%置信水平进行分析。
仅在接受 7J 照射的组中，最大唇压显著增加。
7J 剂量的低水平 LASER 疗法促进了口轮匝肌在最大压力任务中的性能变化。
