Evaluation of the efficacy of low-level laser therapy (lllt) in the treatment of temporomandibular disorders: a randomized clinical trial
Avaliação da eficácia do laser de baixa intensidade no tratamento das disfunções têmporo-mandibular: estudo clínico randomizado
Maria Helena Chaves de Vasconcelos Catão; Polyana Sarmento de Oliveira; Roniery de Oliveira Costa; Vanda Sanderana Macêdo Carneiro
Abstract
Purpose: the effectiveness of lasertherapy in the treatment o temporomandibular of pain with temporomandibular disorders.
Method: it consisted of a randomized clinical trial divided into two groups: Group 1: AsGaAl laser; Group 2: InGaAIP laser, 20 patients between 19 and 35 years old, diagnosed with signs and symptoms of TMD. Patients had the range of motion for maximum mouth opening and laterality registered at the beginning and at the end of the laser treatment. Laser was applied in four pre-auricular points three times a week during a month, in a total of 12 sessions to each patient. The patients' pain was noted based on the use of visual analogue scale (VAS) and also by physical examination of the pain points.
Results: there was a significant reduction (p<0.028) of the level of pain in both treatment groups, but the G1 had higher significance. The evolution of the threshold of muscle sensivity showed a statistically significant difference for G1 and G2. Laser therapy in Group 1 improved the mouth opening 4.643 mm on average, while in Group 2, the average was 3.71 mm per patient.
Conclusion: there was effectiveness in both lasers in the pain control and mouth opening of patients.
Keywords
Resumo
Objetivo: avaliar a eficácia do laser de baixa intensidade no tratamento da dor em pacientes com desordens temporomandibulares.
Método: consistiu de um ensaio clínico randomizado divididos em dois grupos: Grupo 1: laser AsGaAl, Grupo 2: laser InGaAlP, do qual participaram 20 pacientes entre 19 e 35 anos de idade, com diagnóstico de sinais e sintomas de DTM. Os pacientes tinham a amplitude de movimento para abertura máxima da boca e lateralidade registados no início e no final do tratamento a laser. O Laser foi aplicado em quatro pontos pré-auriculares, totalizando 12 sessões três vezes por semana, durante um mês. Dor dos pacientes foi registrado com base na utilização da escala analógica visual (EAV) e também por exame físico dos pontos álgicos.
Resultados: observou-se redução significante (p<0,028) do nível de dor em ambos os grupos, porém no G1 a significância foi maior. A evolução do limiar de sensibilidade muscular evidenciou diferença estatisticamente significante (p<0,05) para G1 e G2. A laserterapia no Grupo 1 melhorou a abertura bucal em média de 4,643 mm, enquanto no Grupo 2, a média foi de 3,71 mm por paciente.
Conclusão: houve eficácia em ambos os lasers no controle da dor e abertura bucal dos pacientes.
Palavras-chave
Referencias
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Submitted date:
10/04/2012
Accepted date:
12/07/2012
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