Wednesday, May 16, 2012

TMJ causes

A wide number of TMJ causes may be responsible for the development of the Temporomandibular joint disorder. TMJ connects the lower jaw to the skull in the front of the ear. Disorders in this area may cause pain in the head and the neck, facial pain, ear pain, difficulty opening the jaw, difficulty biting, clicking and popping of the jaw.
The disorder may be very painful because the TMJ is made of muscles, blood vessels, nerves, and bones. The pain often spreads out side of the head area and may affect back, neck, and arms. The following number of factors is what causes TMJ: disease, wear and tear as a result of aging, and habits.
Trauma is the most typical factor responsible for the condition. There are two kinds of trauma possible: micro- and macro trauma. Micro trauma is internal, for example teeth grinding, or bruxism and clenching, or jaw tightening. The lasting pressure on the temporomandibular joint may change the way the teeth are aligned. Because muscles are involved in the process, there may be inflammation of the membranes around the joint. It is common for people who have TMJ disorder to be diagnosed with grinding and clenching while suffering from pain in the TMJ or facial pain.
The other kind of the trauma, the macro trauma may be a result of the punch to the jaw, impact or an accident, especially when the jawbone is broken, causes for the TMJ to dislocate, or for the cartilage disc of the joint to get damaged.
Causes of TMJ also include bruxism, the condition in which teeth grinding habit results in the spasm of the muscle and causes the inflammatory reaction and the initial pain. TMJ causes may be the following: changes in the typical stimuli of height of the teeth, teeth misalignment, or changes in the chewing muscles.
Grinding is another important factor among TMJ causes. Chewing gum, pen, or pencil, or fingernails causes the constant pounding pressure on the jaw and therefore causes the pain. The tension in the jaw leads to the clenched jaw.
Undergoing arthritic changes in the jaw joint, or osteoarthritis is another identified cause for TMJ. Sometimes degeneration of the breakdown of the joint may be responsible for arthritis in the jaw, or it may also be aging. The slow progressive loss of cartilage disc and new bone formation at the top of the joint may be caused by the degenerative joint disease. A number of mechanical and biological factors may bring to cartilage disc destruction. Such factors as repetitive micro and macro traumas, normal aging, and immunologic and inflammatory diseases can considerable contribute to the process of rapid development of the disorder.
Rheumatoid arthritis is another common factor among the TMJ causes. Most commonly in children, but in adults as well, rheumatoid arthritis is responsible for inflammation process in joints and may trigger TMJ condition. When the diseases progress it typically destructs the cartilage disc and the erode bone, deforming joint in the end. Rheumatoid arthritis falls into the autoimmune disease category. This condition may cause further diseases in different organs and involves constant joint inflammation. In children especially, it is known to affect the TMJ

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