Effects of different photobiomodulation dosimetries on temporomandibular dysfunction: a randomized, double-blind, placebo-controlled clinical trial

Lasers in Medical Science
Rosana Mengue Maggi BorgesMarcelo Baptista Dohnert

Abstract

Changes involving temporomandibular joint, masticatory musculature, and associated structures characterize temporomandibular dysfunction (TMD). The analgesic and anti-inflammatory effect produced by photobiomodulation has contributed to pain relief and functional improvement. However, the parameters to be used have not yet been well established. The aim of this study is to compare the efficacy of three different photobiomodulation dosimetries in the treatment of patients with TMD. A randomized, double-blind, placebo-controlled clinical trial with 44 subjects divided into the groups 8 J/cm2 (n = 11), 60 J/cm2 (n = 11), 105 J/cm2 (n = 11), and control (n = 11). Pain, symptom severity, and joint mobility were evaluated before and after a ten-session protocol of photobiomodulation with AlGaAs laser (830 nm), at a power density of 30 mW/cm2. The mouth opening increased in the 8-J/cm2 group from 10.49 ± 4.68 to 15.40 ± 6.43 degrees, and in the right protrusion from 9.80 ± 4.2 to 12.56 ± 5.40 degrees after the intervention protocol (p < 0.05). All groups significantly decreased pain (p < 0.05). 830-nm laser photobiomodulation was effective in reducing TMD pain and symptoms at all doses tested. Only the doses of 8 J/cm2 were effective ...Continue Reading

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Citations

Jun 17, 2020·Cranio : the Journal of Craniomandibular Practice·Alessandro MicarelliMarco Alessandrini
Dec 20, 2019·Photobiomodulation, Photomedicine, and Laser Surgery·Wanessa Ferreira FrancoMara Rubia Marques
Jun 10, 2021·CoDAS·Giorvan Ânderson Dos Santos AlvesHilton Justino da Silva
Jan 9, 2022·Clinical Oral Investigations·Dayla Thyeme Higashi MirandaRaquel Sano Suga Terada

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