Physical therapy and anesthetic blockage for treating temporomandibular disorders: a clinical trial

Mirella-Marques Nascimento, Belmiro-Cavalcanti Vasconcelos, Gabriela-Granja Porto, Greiciane Ferdinanda, Cyntia-Medeiros Nogueira, Ronaldo-de Carvalho Raimundo, Mirella-Marques Nascimento, Belmiro-Cavalcanti Vasconcelos, Gabriela-Granja Porto, Greiciane Ferdinanda, Cyntia-Medeiros Nogueira, Ronaldo-de Carvalho Raimundo

Abstract

Purpose: the aim of this study was to evaluate the use of physical therapy and anesthetic blockage of the auriculotemporal nerve as a treatment for temporomandibular joint disorders.

Methods: the sample comprised of twenty patients with a diagnosis of disc displacement with/ without reduction and arthralgia according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD Axis I Group IIa, IIb and IIIa). Ten patients (group 1) underwent a cycle of eight anesthetic blockages of the auriculotemporal nerve with injections (1 per week) of 1 ml of bupivacaine 0.5% without vasoconstrictor for 8 weeks. The other 10 patients (group 2) received anesthetic blockage and physical therapy (massage and muscular stretching exercises). After the end of treatment all patients were evaluated at baseline, 1st week, 4th week and 2 months. The t-Student and F (ANOVA) tests were used for statistical analysis, with a significance rate of 5%.

Results: there was a significant difference when both groups were compared according to VAS score (p=0.027). There was no significant difference for the other variables: MMO and jaw protrusion.

Conclusion: the anesthetic blockage and physical therapy, when used together, are effective in the reduction of pain in patients with TMD.

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