Abstract
To review the effects of low-level laser photobiomodulation on masticatory function and mandibular movements in adults with temporomandibular disorder. Search in PubMed, Web of Science, Scopus, EMBASE, Cochrane, LILACS, ScienceDirect, and Google Scholar, using the following descriptors: "temporomandibular joint disorders", "low-level light therapy", "low-level laser therapy", "mastication", and "mandible". Randomized clinical trials in adults with temporomandibular disorder, using low-level laser and assessing the mastication and mandibular movements. Firstly, the titles and abstracts of all retrieved studies were read. Then, only the studies selected in the first stage were read in full and assessed regarding eligibility. After the selection, the characteristics, methodological quality, and quality of evidence of the studies included in the review were analyzed. In the meta-analysis, the mean amplitude of mouth opening was considered as a measure of intervention effect. The 10 articles included in the review had quite different results one from the other, especially regarding the amplitude of mouth opening, while the mastication was assessed in only one of them. Most studies had a high risk of bias, demonstrating a low methodological quality. Significantly higher results for photobiomodulation were identified in the six studies included in the meta-analysis. Due to the scarcity in the literature, there is not enough evidence of the effects of low-level laser photobiomodulation on mastication. As for the mandibular movements, this intervention presented significant results, particularly in the amplitude of mouth opening.
Highlights
Only the studies selected in the first stage were read in full and assessed regarding eligibility
The characteristics, methodological quality, and quality of evidence of the studies included in the review were analyzed
In the meta-analysis, the mean amplitude of mouth opening was considered as a measure of intervention effect
Summary
Fotobiomodulação com laser de baixa potência na função mastigatória e nos movimentos mandibulares em adultos com disfunção temporomandibular: revisão sistemática com metanálise. Objetivo: Revisar os efeitos da Fotobiomodulação com Laser de Baixa Potência na função mastigatória e nos movimentos mandibulares, em adultos com Disfunção Temporomandibular. Critérios de seleção: Ensaios clínicos randomizados envolvendo adultos com Disfunção Temporomandibular, que utilizaram laser de baixa potência e avaliaram a mastigação e os movimentos mandibulares. Foram analisadas as características dos estudos incluídos, bem como a sua qualidade metodológica e da evidência. Conclusão: Devido à escassez na literatura, não há evidências suficientes para os efeitos da fotobiomodulação com laser de baixa potência na mastigação. Notou-se que essa intervenção apresentou resultados significativos, principalmente para o desfecho de amplitude de abertura de boca
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