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  • Title: Relationship of synovial tumor necrosis factor alpha and interleukin 6 to temporomandibular disorder.
    Author: Lee JK, Cho YS, Song SI.
    Journal: J Oral Maxillofac Surg; 2010 May; 68(5):1064-8. PubMed ID: 20031289.
    Abstract:
    PURPOSE: The purpose of this study was to elucidate the relationship of tumor necrosis factor alpha (TNF-alpha) and interleukin 6 (IL-6) to temporomandibular disorder with clinical symptoms such as pain, joint sounds, and mouth opening limitation by analysis of the level of these molecules in the synovial fluid. PATIENTS AND METHODS: Twenty-four patients with chief complaints of pain, mouth opening limitation, and clicking sounds were selected as the experimental group and compared with 5 healthy subjects. After joint lavage with arthrocentesis, diluted synovial fluid was collected and enzyme-linked immunosorbent assay was done for analysis of TNF-alpha and IL-6 in 24 experimental patients and 5 healthy subjects. RESULTS: The synovial levels of TNF-alpha and IL-6 were elevated in the experimental group compared with the healthy control group, but no significant correlation was established. The synovial levels of TNF-alpha and IL-6 were elevated in the acute pain group compared with the chronic pain group, but no significant correlation was established. CONCLUSION: In our analysis of 2 proinflammatory cytokines, TNF-alpha and IL-6, in the synovial fluid of temporomandibular disorder patients with symptoms of pain, mouth opening limitation, and clicking, both were elevated without statistical significance.
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