Immediate effects of photobiomodulation on maximum lip pressure
Efeitos imediatos da fotobiomodulação sobre a pressão máxima dos lábios
Vanessa Mouffron; Renata Maria Moreira Moraes Furlan; Andréa Rodrigues Motta
Abstract
Purpose: To verify the immediate effects of different doses of photobiomodulation on maximum lip pressure. Methods: 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%. Results: The maximum lip pressure increased significantly only in the group irradiated with 7 J. Conclusion: Low level LASER therapy with 7 J dose promoted changes in the performance of the orbicularis oris muscle in the maximum pressure task.
Keywords
Resumo
Objetivo: Verificar os efeitosimediatos da fotobiomodulação sobre a pressão máxima doslábios para diferentes doses. Método: Estudo experimental, randomizado e triplo cego. A amostra foi composta por 23 mulheres e 17 homens com idade entre 18 e 33 anos (média 23,18 anos, DP=2,1), divididos em quatro grupos: GC (grupo controle), G1, G4 e G7.Apressão máxima foi avaliada com o Iowa Oral Performance Instrument (IOPI). O bulbo foi posicionado entre os lábios e os participantes foram orientados a pressioná-lo com a maior força possível. Aplicou-se o LASER infravermelho (808 nm) da marca DMC, modelo Therapy EC, 100 mW de potência. As doses testadas foram 1 J (G1), 4 J (G4) e 7 J (G7) aplicadas em seis pontos do músculo orbicular da boca. No GC não houve intervenção. Após a aplicação do LASER, foram repetidos os procedimentos de avaliação. Os resultados foram analisados com nível de significância de 95%. Resultados: A pressão máxima de lábios aumentou significativamente apenas no grupo irradiado com 7 joules. Conclusão: O LASER de baixa intensidade na dose de 7 J promoveu mudanças no desempenho do músculo orbicular da boca em tarefa de pressão máxima.
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Referencias
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