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Effects of splint therapy in TMJ dysfunction: a study using magnetic resonance imaging
C W Chen1, J L Boulton, J P Gage
1Department of Dentistry, University of Queensland.
Australian Dental Journal
|April 1, 1995
Summary
This pilot study shows that MRI can help diagnose temporomandibular joint (TMJ) dysfunction. While splint therapy improved TMJ pain, MRI revealed no disc recapture, suggesting pain relief may not solely depend on disc position.
Area of Science:
- Dentistry
- Radiology
- Orthodontics
Background:
- Temporomandibular joint (TMJ) dysfunction is a common condition.
- Accurate diagnosis is crucial for effective treatment.
- Magnetic Resonance Imaging (MRI) offers detailed joint visualization.
Observation:
- Seven patients with symptomatic TMJ dysfunction were evaluated using MRI before and after three months of maxillary stabilizing splint therapy.
- Clinical assessment included pain levels and jaw movement.
- MRI scans assessed disc/condyle relationships and morphology.
Findings:
- All patients reported symptom improvement, with six achieving full pain remission.
- Baseline MRIs showed anterior disc displacement in three patients; four had normal disc positions.
- Follow-up MRIs indicated no disc recapture despite clinical improvement, suggesting pain relief is not solely dependent on disc repositioning.
Implications:
- MRI can aid in diagnosing TMJ dysfunction, differentiating between internal derangements and other causes of pain.
- Maxillary splint therapy can effectively alleviate TMJ pain and dysfunction symptoms.
- Further large-scale MRI studies are warranted to fully understand TMJ pain mechanisms and treatment efficacy.