Temporomandibular Disorders (TMD) (cont.)
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Temporomandibular disorders (TMD) can result from a single cause or, more commonly, a combination of causes.
The main causes of TMDs include:
In many cases, TMD symptoms appear to be caused by both muscle tension (tightness) and joint dysfunction. It is not always clear which came first. For example, osteoarthritis can cause changes in the joint, which may then bring on muscle spasms. Conversely, muscle spasms over time hinder jaw function and can eventually cause osteoarthritis in the jaw joint. A similar relationship appears to exist between muscle tension and disc displacement within the joint.
When jaw joint problems are caused by diseases such as rheumatoid arthritis, treatment for that condition is important. Many other conditions cause symptoms similar to those of TMDs, such as migraine headaches and infections.
eMedicineHealth Medical Reference from Healthwise
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