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Related Experiment Videos

Recognition of internal derangements.

J J R Huddleston Slater1, F Lobbezoo, M K A Van Selms

  • 1Department of Oral Function, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands.

Journal of Oral Rehabilitation
|September 17, 2004
PubMed
Summary

Diagnosing internal derangements (ID) in temporomandibular disorders is crucial. Combining auscultation and palpation offers the most reliable method for classifying ID types, improving diagnostic accuracy.

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Area of Science:

  • Dentistry
  • Orthodontics
  • Temporomandibular Joint Disorders

Background:

  • Internal derangement (ID) is a common temporomandibular disorder symptom.
  • Accurate diagnosis of ID is essential for effective treatment planning.

Purpose of the Study:

  • To evaluate the inter-observer reliability of diagnosing internal derangements (ID) using auscultation, palpation, or both.
  • To determine the most reliable method for classifying the type of internal derangement.

Main Methods:

  • 120 women and 100 men were examined by two trained examiners.
  • Examiners used auscultation, palpation, and a combination of both to identify and classify IDs.
  • Inter-rater reliability was assessed using Cohen's kappa statistic.

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Main Results:

  • Moderate inter-rater reliability was observed for detecting the presence of ID across all techniques.
  • Anterior disc displacement was diagnosed in 14% and hypermobility in 12% of cases.
  • Almost perfect reliability was achieved for classifying ID types when using the combined auscultation and palpation technique.

Conclusions:

  • The combination of auscultation and palpation is the most reliable method for classifying the type of internal derangement.
  • Any of the three techniques (auscultation, palpation, or both) are sufficient for establishing the presence of an internal derangement.