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Efeito da massoterapia e da estimulacao eletrica nervosa transcutanea na dor e atividade eletromiografica de pacientes com disfuncao temporomandibular (Effect of massage therapy and of transcutaneous electrical nerve stimulation on pain and electromyographic activity in patients with temporomandibular dysfunction) [Portuguese]
de Paiva Tosato J, Biasotto-Gonzalez DA, Caria PHF
Fisioterapia e Pesquisa [Physical Therapy and Research] 2007 May-Aug;14(2):21-26
clinical trial
3/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: No; Point estimates and variability: No. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

This study aimed at assessing the effect of two physical therapy resources in the treatment of temporomandibular disorders (TMD) -- massage therapy and transcutaneous electrical nerve stimulation (TENS) on masseter and temporal muscles -- in view of reducing painful sensitivity response in TMD patients. Twenty female volunteers with myogenous TMD signs and symptoms were randomly divided into two groups (n = 10): group 1 was submitted to one session of massage on the face, and group 2 received TENS on the face. Before and after the treatment, volunteers underwent an electromyographic exam in isotonic and isometric contractions of masseter and temporal muscles, and answered the visual analog scale of pain (VAS). Results show that the muscles examined had greater electromyographic activity (p = 0.02) after the session in both groups, pointing to improvement in muscle contraction pattern; and a reduction in VAS scores (p < 0.01). Both therapeutic resources were thus found to be equally effective in reducing pain sensitivity in TMD patients.

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