• Lasers in medical science · Mar 2020

    Randomized Controlled Trial

    Intraoral photobiomodulation diminishes pain and improves functioning in women with temporomandibular disorder: a randomized, sham-controlled, double-blind clinical trial : Intraoral photobiomodulation diminishes pain in women with temporomandibular disorder.

    • Carolina Marciela Herpich, Leal-Junior Ernesto Cesar Pinto ECP Department of Postgraduate Program in Rehabilitation Sciences, University Nove de Julho, São Paulo, Brazil., Fabiano Politti, de Paula Gomes Cid André Fidelis CAF Department of Physical Therapy, University Nove de Julho, São Paulo, Brazil., Igor Phillip Dos Santos Glória, Maitê de Freitas Rocha de Souza Amaral, Graciela Herpich, Ludmila Menezes Alves de Azevedo, de Oliveira Gonzalez Tabajara T Department of Physical Therapy, University Nove de Julho, São Paulo, Brazil., and Daniela Aparecida Biasotto-Gonzalez.
    • Department of Physical Therapy, University Nove de Julho, São Paulo, Brazil. carolinaherpich@gmail.com.
    • Lasers Med Sci. 2020 Mar 1; 35 (2): 439-445.

    AbstractThe aim of the present study was to evaluate the effect of intraoral photobiomodulation involving super-pulsed laser (905 nm) combined with red (640 nm) and infrared (875 nm) light-emitting diodes on pain, mandibular range of motion, and functioning in women with myogenous temporomandibular disorder. A randomized, sham-controlled, double-blind clinical trial was conducted involving 30 women with myogenous temporomandibular disorder diagnosed using the Research Diagnostic Criteria for Temporomandibular Disorders. The participants were randomly allocated to two groups (active and sham photobiomodulation). The evaluations involved this use of the visual analog scale, digital calipers, and a functional scale. Photobiomodulation was administered intraorally in the region of the pterygoid muscles, bilaterally, in all participants for a total of six sessions. Evaluations were performed on five occasions: prior to the intervention, immediately after the first session, 24 h and 48 h after the first session, and after the six sessions. Significant differences between groups were found regarding pain (p ≤ 0.01) and functioning (p ≤ 0.04). However, no statistically significant difference was found regarding range of mandibular motion. The findings demonstrate that intraoral photobiomodulation involving super-pulsed laser (905 nm) combined with red (640 nm) and infrared (875 nm) light-emitting diodes diminishes pain and improves functioning but does not exert an influence on mandibular range of motion in women with temporomandibular disorder.Trial registration: NCT02839967.

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