AI Article Synopsis
- This study explored muscle pain in temporomandibular disorders (TMD) using various diagnostic tools, including thermography, algometry, and EMG, to examine the relationship between muscle pain and muscle activity.
- Researchers found that symptomatic muscles showed lower temperature and less hyperactivity at rest, indicating that pain may be associated with hypoactivity instead of hyperactivity of the muscles.
- The study suggests that treatments should focus on addressing the neurophysiological factors that affect muscle recruitment in patients with TMD-related muscle pain.
Article Abstract
Abstract: This study aimed to report clinical data on muscle pain in temporomandibular disorders using thermography, algometry, and surface electromyography (EMG). This was done to support or rule out the hypothesis that painful muscles are always related to muscular hyperactivity. This cross-sectional, analytical study included 50 participants who underwent clinical examination and evaluation of anterior temporal muscles and bilateral masseters using thermography, algometry, and EMG. The muscles with greater pain symptoms had hyporadiation and a lower temperature compared with both contralateral muscles and muscles in the asymptomatic group. There was no muscle hyperactivity at rest on EMG analysis; however, there was a greater capacity for muscle recruitment of these symptomatic muscles after a joint decompression test with cotton rolls, suggesting hypoactivity of the affected muscles in the symptomatic patient group. Muscle pain may be related to hypoactivity of the musculature when there is neurological inhibition of the recruitment of muscle fibers, and treatment must consider these neurophysiological alterations.
Level Of Evidence: Level IV.
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| http://dx.doi.org/10.1097/SCS.0000000000010209 | DOI Listing |
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