[en] The gold standard for the management of sleep bruxism (SB) is the use of a rigid occlusal splint; however, there are limitations for its use in children and alternatives to the management of SB are needed. Photobiomodulation therapy has been used with positive results in temporomandibular disorders. This study aimed to evaluate the effects of photobiomodulation therapy with infrared LED in children with SB. Thirty children were divided into three groups: Group 1: control/absence of bruxism (n = 10); Group 2: SB treated with infrared LED (n = 10); Group 3: SB treated with occlusal splint (n = 10). Electromyographic evaluation of masseter, anterior temporalis, and upper trapezius, and salivary dopamine levels were assessed before and after treatments. Data were statistically analyzed using two-way mixed model ANOVA. An increase in the temporalis and right masseter EMG activity at rest was observed in Group 3, with large effect size (p < 0.05). Left masseter and temporalis EMG activity did not differ over time in the LED group, similar to the control group. Moreover, the EMG activity of masticatory muscles during chewing and upper trapezius muscle did not differ over time in all groups. The results also pointed to a difference in the levels of dopamine between children with and without SB, with Group 3 showing higher levels in the pre-treatment time compared to controls (p < 0.025). In conclusion, an increase in the masticatory muscles activity at rest was observed in children undergoing splint therapy. Moreover, a difference in the levels of salivary dopamine was found between children with and without SB.
Disciplines :
Dentistry & oral medicine
Author, co-author :
Kobayashi, Fernanda Yukie ; Postgraduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
Castelo, Paula Midori; Department of Pharmaceutical Sciences, Universidade Federal de São Paulo (UNIFESP), Diadema 04021-001, Brazil
Politti, Fabiano ; Postgraduation Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
Rocha, Monise Mendes; Postgraduation Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
Beltramin, Rafael Zaratin; Postgraduation Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
Salgueiro, Mônica Da Consolação Canuto; Postgraduation Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
Gonçalves, Marcela Leticia Leal; Postgraduation Program in Health and Environment, Universidade Metropolitana de Santos (UNIMES), Santos 11045-002, Brazil
Namour, Samir ; Université de Liège - ULiège > Département des sciences dentaires
Brugnera Júnior, Aldo; National Institute of Science and Technology, INCT "Basic Optics Applied to Life Sciences", IFSC, USP, São Carlos 13566-590, Brazil
Sfalcin, Ravana Angelini; Postgraduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
Bussadori, Sandra Kalil; Postgraduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
Language :
English
Title :
Immediate Evaluation of the Effect of Infrared LED Photobiomodulation on Childhood Sleep Bruxism: A Randomized Clinical Trial.
Original title :
[en] Immediate Evaluation of the Effect of Infrared LED Photobiomodulation on Childhood Sleep Bruxism: A Randomized Clinical Trial.
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