| Jokstad et al [10,19,20] |
Investigator-blinded randomized controlled trial |
To compare the therapeutic efficacy of two different intraoral devices in TMD patients. |
TMD patients referred to or applying for therapy at the Department of Prosthetic Dentistry and Stomatognathic Physiology, Faculty of Dentistry, University of Oslo (Norway) |
Adults who had experienced TMD symptoms for at least 6 months, e.g., |
1. Partial protheses with distal extensions |
38 (average age: 37 years; range: 17–62 years) |
NTI-tss device (n = 18) vs. Michigan-type stabilization splint (SS) (n = 20) |
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- impaired range of motion |
2. Additional TMD therapy during the trial |
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- impaired TMJ function |
3. Recent facial or cervical trauma |
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worn at night |
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- muscle pain |
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- TMJ pain |
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- pain on mandibular movement |
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Plus (both groups): |
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1. counseling |
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2. muscle relaxation exercises |
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| Study |
Study duration |
Outcome parameters |
Results |
Authors' conclusions |
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| Jokstad et al [10,19,20] |
3 months |
- Self-reported headache and TMD-related pain on a 100 mm VAS |
Within-treatment-group pre-post differences |
1. The therapeutic efficacy between an NTI-tss device and a Michigan splint did not differ over an observation period of three months. |
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- Maximum unassisted jaw opening |
- Average jaw opening increased in both groups |
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- Tenderness on palpation of masticatory muscles, neck and shoulder muscles and TMJs on a 100 mm VAS |
- VAS scores for TMD-related pain and self reported headache decreased significantly between baseline and 3-months examination in both groups |
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- Reduction of jaw muscle (but not neck and shoulder muscles) tenderness upon palpation in both groups |
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- No changes of TMJ tenderness upon palpation |
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Between-groups post-treatment differences |
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- Comfort of splint use on a 100 mm VAS |
- No differences between NTI-tss and SS groups at the 3-months examination |
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- In both groups, the comfort of splint use appeared to be similar at each control examination with a (statistically not significant) trend of higher comfort for the NTI-device |
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