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Craniomandibular disorders and general joint mobility.

L Westling1

  • 1Department of Stomatognathic Physiology, University of Gothenburg, Sweden.

Acta Odontologica Scandinavica
|October 1, 1989
PubMed
Summary

General joint laxity is strongly linked to temporomandibular joint (TMJ) issues in patients with craniomandibular disorders (CMD). This finding highlights the importance of assessing joint mobility for diagnosing and treating CMD.

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Area of Science:

  • Orthopedics
  • Rheumatology
  • Dentistry

Background:

  • Craniomandibular disorders (CMD) encompass a range of conditions affecting the jaw joint and muscles.
  • General joint laxity, a condition of increased joint mobility, is increasingly recognized as a potential contributing factor in various musculoskeletal issues.

Purpose of the Study:

  • To investigate the association between general joint mobility and the presence of temporomandibular joint (TMJ) dysfunction in patients diagnosed with CMD.
  • To determine if a higher degree of joint laxity correlates with a greater prevalence of TMJ involvement in this patient population.

Main Methods:

  • Assessed general joint mobility using Beighton's modification of the Carter & Wilkinson hypermobility score in 74 female patients with CMD and 73 healthy controls.
  • Categorized participants into groups based on their hypermobility scores (>=3 for lax joints, 0-2 for no laxity).
  • Evaluated the prevalence of temporomandibular joint (TMJ) involvement within each group.

Main Results:

  • A statistically significant difference (p < 0.001) was observed in TMJ involvement between patients with and without general joint laxity.
  • 83% of patients with lax joints (score >=3) exhibited TMJ involvement.
  • 41% of patients without laxity (score 0-2) had TMJ involvement.

Conclusions:

  • General joint laxity is a significant factor to consider in the diagnosis of craniomandibular disorders (CMD).
  • Assessing joint mobility is crucial for comprehensive patient evaluation and effective treatment planning in CMD cases.
  • The findings suggest a strong correlation between hypermobility and temporomandibular joint dysfunction.

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