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Experimental masticatory muscle pain.

J F Bowley1, E N Gale

  • 1Department of Behavioral Sciences, School of Dental Medicine, Faculty of Health Sciences, State University of New York, Buffalo 14214.

Journal of Dental Research
|December 1, 1987
PubMed
Summary
This summary is machine-generated.

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Masticatory muscle exercises did not consistently induce pain in healthy subjects. However, some individuals were susceptible, developing bilateral pain, suggesting exercise may contribute to temporomandibular disorder symptoms.

Area of Science:

  • Dentistry
  • Neurology
  • Pain Management

Background:

  • Temporomandibular disorders (TMD) are complex conditions affecting masticatory muscles.
  • The role of specific muscle exercises in inducing pain or TMD-like symptoms is not fully understood.

Purpose of the Study:

  • To investigate the potential of specific exercises to induce masticatory muscle pain in healthy individuals.
  • To assess pain onset, duration, and site-specificity following controlled muscle loading.

Main Methods:

  • Ten female subjects without prior TMD history participated.
  • Five exercises were performed: three established (tooth-clenching, grinding, mandibular protrusion) and two novel unilateral exercises.
  • Pain was assessed via clinical palpation and a questionnaire.

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Main Results:

  • The exercises did not consistently induce masticatory muscle pain in most subjects.
  • Certain individuals exhibited susceptibility, developing bilateral pain after unilateral exercises.
  • No statistically significant site-specific pain was detected by palpation or questionnaire.

Conclusions:

  • Controlled masticatory muscle exercise and fatigue may contribute to TMD-like symptoms.
  • Individual susceptibility plays a role in exercise-induced muscle pain.
  • Further research is needed to clarify the relationship between exercise, pain, and TMD development.