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Randomized Controlled Trial
. 2018 Jan 1;23(1):e65-e71.
doi: 10.4317/medoral.21965.

Low-level laser therapy and anesthetic infiltration for orofacial pain in patients with fibromyalgia: a randomized clinical trial

R-C-V de Souza  1 , E-T de Sousa, K-G-O Scudine, U-M Meira, E-M de Oliveira E Silva, A-C-A Gomes, F-A Limeira-Junior
Affiliations
Randomized Controlled Trial

Low-level laser therapy and anesthetic infiltration for orofacial pain in patients with fibromyalgia: a randomized clinical trial

R-C-V de Souza et al. Med Oral Patol Oral Cir Bucal. .

Abstract

Background: To compare the analgesic effect of anesthetic infiltration of lidocaine 2% and low-level laser therapy (LLLT) by GaAlAs into tender points of patients with orofacial pain and fibromyalgia (FM).

Material and methods: A randomized clinical trial was performed with adults (N=66) that were allocated into two groups (1:1): Group A received LLLT irradiation by Diode Laser GaAlAs (780nm) with expositions twice a week during six weeks and Group B was treated with anesthetic infiltration of lidocaine 2% without vasoconstrictor once a week for four weeks. The pain assessment included the Visual Analogic Scale (VAS) and tenderness to palpation.

Results: No dropout and adverse effect was observed during the study. The pain decreased significantly in each group after the treatment (p=0.0001, β=1.0), even though no statistical difference was found between both treatments (p=0.46, β= 0.82). The presence of tender points decreased after both treatments, with responsively in some types of masticatory muscles (p<0.05) except posterior temporalis muscle. The patients perception showed that both treatments were effective and a few patients reported that the treatment did not improve welfare.

Conclusions: The LLLT by GaAlAs and anesthetic infiltration of lidocaine 2% were equally effective to control orofacial pain in FM individuals.

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Conflict of interest statement

Conflict of interest statement: The authors declare that they have no conflict of interest.

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