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Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia

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The "5Ts" screening tool: Enhancements and threshold values for effective TMD identification.

C G Liu^1,2,3,4,5, A U Yap^1,6,7, K Y Fu^1,2,3,4,5

¹Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China.

|January 30, 2024

Summary

This study improved temporomandibular disorder (TMD) screening by adding frequency and pain type details. The enhanced screeners (5Ts-F and 6Ts-F) showed higher accuracy and specificity for identifying TMDs.

Keywords:

accuracy diagnosis screening sensitivity specificity temporomandibular disorders

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Area of Science:

Oral and Maxillofacial Medicine
Diagnostic Accuracy Studies
Screening Tool Development

Background:

Temporomandibular Disorders (TMDs) represent a significant public health concern.
Existing screening tools for TMDs, such as the five TMD symptoms (5Ts) screener, may benefit from enhancements for improved diagnostic precision.
Differentiating between temporomandibular joint (TMJ) and muscle pain, and incorporating symptom frequency, are potential areas for refinement.

Purpose of the Study:

To enhance the 5Ts screener for TMD diagnosis by integrating symptom frequency and distinguishing TMJ from muscle pain.
To evaluate the diagnostic accuracy and establish optimal cut-off points for the enhanced TMD screening tools.
To compare the performance of the enhanced screeners against the original 5Ts.

Main Methods:

Adult participants (≥18 years) were recruited from a university hospital setting.
Participants completed demographic surveys and enhanced screening tools: 5Ts with frequency (5Ts-F) and 6 symptoms with frequency (6Ts-F).
Diagnostic accuracy was assessed using Area Under the Receiver Operating Characteristic Curves (AUCs) following protocolized interviews and clinical examinations based on DC/TMD criteria.

Main Results:

324 participants were enrolled, with 86.4% diagnosed with TMDs.
The original 5Ts demonstrated high accuracy (AUC=0.92).
The enhanced 5Ts-F and 6Ts-F showed superior diagnostic accuracy (AUCs=0.95/0.96) and significantly improved specificity (97.7%) compared to 5Ts.

Conclusions:

The enhanced 5Ts-F and 6Ts-F screeners offer improved diagnostic accuracy and notably higher specificity for TMD detection.
Recommended cut-off scores for screening TMD presence are >1.5 for 5Ts and >2.5 for 5Ts-F/6Ts-F.
These refined screening tools can aid in the more effective identification of individuals with TMDs.