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Temporomandibular joint disorders' impact on pain, function, and disability
P Chantaracherd1, M T John2, J S Hodges3
1Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA.
Journal of Dental Research
|January 10, 2015
Summary
This study found no significant link between temporomandibular joint (TMJ) disorder severity and patient-reported jaw pain, function, or disability. Advanced TMJ intra-articular status did not correlate with TMD impact in diagnosed individuals.
Area of Science:
- Oral and Maxillofacial Surgery
- Radiology
- Rheumatology
Background:
- Temporomandibular joint (TMJ) disorders (TMD) encompass a range of conditions affecting the jaw joint.
- Understanding the relationship between structural joint changes and patient symptoms is crucial for effective management.
- Existing research has explored associations, but a clear correlation between advanced intra-articular pathology and symptom burden remains debated.
Purpose of the Study:
- To investigate the association between the severity of TMJ intra-articular disorders and patient-reported outcomes of jaw pain, function, and disability.
- To quantify the relationship between specific stages of TMJ intra-articular status (normal, disc displacement with/without reduction, degenerative joint disease) and the impact of TMD.
Main Methods:
- A cross-sectional study of 614 patients with at least one TMD diagnosis from the RDC/TMD Validation Project.
- TMJ intra-articular status was assessed by three blinded radiologists using MRI and CT, categorizing joints into normal structure, DDwR, DDwoR, or DJD.
- TMD impact was measured using a composite of pain intensity (GCPS), jaw functional limitation (JFLS), and disability (GCPS Disability Points).
Main Results:
- The correlation between TMJ intra-articular status and TMD impact was 0.05 (95% CI, -0.04 to 0.13) for all TMD cases (n=614).
- For cases with a TMD pain diagnosis (n=500), the correlation was 0.07 (95% CI, -0.04 to 0.17).
- These correlations were neither statistically significant nor clinically relevant, indicating no significant association.
Conclusions:
- This study found no clinically significant association between advanced TMJ intra-articular disorders and the patient-reported impact of TMD.
- The progression from normal joint structure to degenerative joint disease does not appear to significantly correlate with increased jaw pain, functional limitation, or disability.
- Further research exploring alternative models of TMJ intra-articular status progression is warranted.
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