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Related Experiment Video

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A Method for Evaluating Timeliness and Accuracy of Volitional Motor Responses to Vibrotactile Stimuli
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Reliability and diagnostic validity of a joint vibration analysis device.

Sonia Sharma1, Heidi C Crow1, Krishnan Kartha1

  • 1Department of Oral Diagnostic Sciences, School of Dental Medicine, University at Buffalo, Buffalo, NY, 14214, USA.

BMC Oral Health
|February 18, 2017
PubMed
Summary

Joint Vibration Analysis (JVA) reliably diagnoses temporomandibular joint disc displacement. A composite JVA score effectively differentiates between normal and displaced discs, showing diagnostic validity.

Keywords:
Diagnostic validityFactor analysisJoint vibrationReliabilityTemporomandibular disorders

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Area of Science:

  • Dental diagnostics
  • Temporomandibular joint disorders

Background:

  • Evaluating the diagnostic accuracy of Joint Vibration Analysis (JVA).
  • Assessing JVA in patients with temporomandibular joint disc displacement with reduction and normal disc positions.

Purpose of the Study:

  • To determine the reliability and diagnostic validity of JVA.
  • To compare JVA parameters against Magnetic Resonance Imaging (MRI) as a reference standard.

Main Methods:

  • Assessed inter-rater reliability of JVA trace selection over 30 days.
  • Evaluated short-term reliability of JVA vibrations with 30-minute intervals.
  • Used exploratory factor analysis and Receiver Operating Characteristic (ROC) curves for validity assessment.

Main Results:

  • Short-term reliability of JVA outcome variables was excellent.
  • A composite JVA score, derived from six items, demonstrated acceptable sensitivity and specificity (ROC 0.8).
  • Factor analysis identified scalable and normalizable JVA variables.

Conclusions:

  • The composite JVA score effectively discriminates between normal and displaced temporomandibular joint discs.
  • JVA shows potential as a reliable diagnostic tool for temporomandibular joint disc displacement.