Electromyographic evaluation of the effect of ultrasound with muscle stretching in temporomandibular disorder: a clinical trial

Authors

  • Jalusa Boufleur Universidade Federal de Santa Maria – UFSM
  • Eliane Castilhos Rodrigues Corrêa Universidade Federal de Santa Maria – UFSM
  • Lais Chiodelli Universidade Federal de Santa Maria – UFSM
  • Ana Maria Toniolo da Silva Universidade Federal de Santa Maria - UFSM
  • Lilian Gerdi Kittel Ries Universidade do Estado de Santa Catarina - UDESC

DOI:

https://doi.org/10.20396/bjos.v13i2.8640916

Keywords:

Temporomandibular joint disorder, Electromyography, Ultrasonics, Muscle stretching exercise

Abstract

Aim: To investigate the electromyographic activity of masticatory muscles in women with myogenic or mixed TMD treated with ultrasound and ultrasound associated with stretching. Methods: Sixteen women with myogenic or mixed TMD, according to the Research Diagnostic Criteria for Temporomandibular Disorder (RDC/TMD), participated in the study. The patients were evaluated using surface electromyography (sEMG) of the masseter and anterior temporalis muscles, during maximum intercuspation, before and immediately after application of therapeutic resources. All patients were treated by ultrasound (US), ultrasound associated with stretching and placebo ultrasound, by turns, once a week with a one-week minimum interval between them. Results: There was greater symmetry of the masseter muscle electrical activity after ultrasound associated with stretching (p=0.03). The electromyographic values for the maximum intercuspation as well as the symmetry of anterior temporal muscle (p=0.47, p=0.84, p=0.84) and anteroposterior coefficient (p=0.07, p=0.84, p=0.57) showed no statistically significant difference after the intervention, placebo, ultrasound and ultrasound with stretching. Conclusions: These results indicate that a single application of ultrasound and ultrasound associated with stretching were not able to modify the activity pattern of the masticatory muscles during maximum intercuspation, except the symmetry of the masseter muscle that increased with the last, in women with myogenic or mixed temporomandibular disorder.

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Author Biographies

Jalusa Boufleur, Universidade Federal de Santa Maria – UFSM

Universidade Federal de Santa Maria – UFSM, School of Physical Therapy, Department of Physical Therapy and Rehabilitation, Santa Maria, RS.

Eliane Castilhos Rodrigues Corrêa, Universidade Federal de Santa Maria – UFSM

Universidade Federal de Santa Maria – UFSM, School of Physical Therapy, Department of Physical Therapy and Rehabilitation, Santa Maria, RS.

Lais Chiodelli, Universidade Federal de Santa Maria – UFSM

Universidade Federal de Santa Maria – UFSM, School of Physical Therapy, Department of Physical Therapy and Rehabilitation, Santa Maria, RS.

Ana Maria Toniolo da Silva, Universidade Federal de Santa Maria - UFSM

Universidade Federal de Santa Maria - UFSM, School of Speech Therapy, Department of Speech Therapy, Santa Maria, RS.

Lilian Gerdi Kittel Ries, Universidade do Estado de Santa Catarina - UDESC

Universidade do Estado de Santa Catarina - UDESC, School of Physical Therapy, Department of Physical Therapy, Florianópolis, SC.

Published

2009-12-30

How to Cite

1.
Boufleur J, Corrêa ECR, Chiodelli L, Silva AMT da, Ries LGK. Electromyographic evaluation of the effect of ultrasound with muscle stretching in temporomandibular disorder: a clinical trial. Braz. J. Oral Sci. [Internet]. 2009 Dec. 30 [cited 2022 Dec. 8];13(2):152-7. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640916

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