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https://codas.org.br/article/doi/10.1590/2317-1782/20212021138
CoDAS
Systematic Review

Effects of low-level laser photobiomodulation on the masticatory function and mandibular movements in adults with temporomandibular disorder: a systematic review with meta-analysis

Fotobiomodulação com laser de baixa potência na função mastigatória e nos movimentos mandibulares em adultos com disfunção temporomandibular: revisão sistemática com metanálise

Camila Fonsêca Guedes Pereira Máximo; Julyane Feitoza Coêlho; Silvia Damasceno Benevides; Giorvan Ânderson dos Santos Alves

http://dx.doi.org/10.1590/2317-1782/20212021138 CoDAS, vol.34, n3, e20210138, 2022
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Abstract

Purpose

To review the effects of low-level laser photobiomodulation on masticatory function and mandibular movements in adults with temporomandibular disorder.

Research strategies

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”.

Selection criteria

Randomized clinical trials in adults with temporomandibular disorder, using low-level laser and assessing the mastication and mandibular movements.

Data analysis

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.

Results

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.

Conclusion

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.

Keywords

Low-Level Light Therapy,; Temporomandibular Joint Dysfunction Syndrome,; Mastication,; Mandible,; Systematic Review

Resumo

Objetivo

Revisar os efeitos da Fotobiomodulação com Laser de Baixa Potência na função mastigatória e nos movimentos mandibulares, em adultos com Disfunção Temporomandibular.

Estratégia de pesquisa

Busca nas bases de dados PubMed, Web of Science, Scopus, Embase, Cochrane, Lilacs, Science Direct e Google Scholar, utilizando os descritores: “temporomandibular joint disorders”, “low level light therapy”, “low level laser therapy”, “mastication” e “mandible”.

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.

Análise dos dados

Inicialmente realizou-se a leitura dos títulos e resumos de todos os estudos encontrados. Em seguida, apenas os estudos selecionados na primeira etapa foram lidos na íntegra e avaliados quanto à elegibilidade. Após a seleção, foram analisadas as características dos estudos incluídos, bem como a sua qualidade metodológica e da evidência. Na metanálise, a média da amplitude de abertura de boca foi considerada como medida de efeito da intervenção.

Resultados

Verificou-se que os dez artigos incluídos apresentaram resultados muito distintos entre si, principalmente com relação à amplitude de abertura de boca, sendo a mastigação avaliada em apenas um deles. A maioria dos estudos apresentou alto risco de viés, demonstrando uma baixa qualidade metodológica. Considerando os seis estudos incluídos na metanálise, foram identificados resultados significativamente superiores para a fotobiomodulação.

Conclusão

Devido à escassez na literatura, não há evidências suficientes para os efeitos da fotobiomodulação com laser de baixa potência na mastigação. Já nos movimentos mandibulares, notou-se que essa intervenção apresentou resultados significativos, principalmente para o desfecho de amplitude de abertura de boca.

Palavras-chave

Terapia com Luz de Baixa Intensidade,; Síndrome da Disfunção da Articulação Temporomandibular,; Mastigação,; Mandíbula,; Revisão Sistemática

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