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Temporomandibular Disorders (TMD) - Topic Overview

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Temporomandibular disorders (TMD) is the name given to several problems with jaw movement and pain in and around the jaw joints camera.gif.

You may also hear TMD called TMJ or TM problems.

The jaw joints, or temporomandibular (TM) joints, connect the lower jawbone (mandible) to the skull. These flexible joints are used more than any other joint in the body. They allow the jaw to open and close for talking, chewing, swallowing, yawning, and other movements.

Many people have problems with jaw movement and pain in and around the jaw joints at some time during their lives. These joint and muscle problems are complex. So finding the right diagnosis and treatment of TMD may take some time.

Temporomandibular disorders (TMD) can affect the jaw and jaw joint as well as muscles in the face, shoulder, head, and neck camera.gif. Common symptoms include joint pain, muscle pain, headaches, joint sounds, trouble with fully opening the mouth, and jaw locking.

In most cases, symptoms of TMD are mild and don't last long. They tend to come and go without getting worse and usually go away without a doctor's care.

Some people who have TMD develop long-lasting (chronic) symptoms. Chronic pain or difficulty moving the jaw may affect talking, eating, and swallowing. This may affect a person's overall sense of well-being.

The most common cause of TMD symptoms is muscle tension, often triggered by stress. When you are under stress, you may be in the habit of clenching or grinding your teeth. These habits can tire the jaw muscles and lead to a cycle of muscle spasm, tissue damage, pain, sore muscles, and more spasm.

TMD can start when there is a problem with the joint itself, such as:

  • An injury to the joint or the tissues around it.
  • Problems with how the joint is shaped.
  • Joint diseases, such as osteoarthritis or rheumatoid arthritis.
  • The articular disc that cushions the joint shifts out of place.

Although there is no one way to identify a TMD, your doctor can most likely check your condition with a physical exam and by asking questions about your past health. In some cases, an X-ray, CT scan, or MRI is also used to check for bone or soft tissue problems related to symptoms of TMD.

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    Only 18.5% of Americans never floss. You are missing out on a simple way to make a big difference in the health of your mouth. Regardless of how well you brush, plaque still forms between your teeth and along your gums. Floss removes food trapped between the teeth and removes the film of bacteria that forms there before it turns to plaque, which can cause inflamed gums (gingivitis), cavities, and tooth loss. Try flossing just one tooth to get started.

    You are one of 31% of Americans who don't floss daily. You are missing out on a simple way to make a big difference in the health of your mouth. Regardless of how well you brush, plaque still forms between your teeth and along your gums. Toothbrush bristles alone cannot clean effectively between these tight spaces. Flossing removes up to 80% of the film that hardens to plaque, which can cause inflamed gums (gingivitis), cavities, and tooth loss. Aim for 3 more days!

    You are one of 31% of Americans who don't floss daily, but you're well on your way to making a positive impact on your teeth and gums. Regardless of how well you brush, plaque still forms between your teeth and along your gums. Toothbrush bristles alone cannot clean effectively between these tight spaces. Flossing removes up to 80% of the film that hardens to plaque, which can cause inflamed gums (gingivitis), cavities, and tooth loss. Aim for all 7 days!

    Only 50.5% of Americans floss daily, and good for you that you are one of them! Regardless of how well you brush, plaque still forms between your teeth and along your gums. Toothbrush bristles alone cannot clean effectively between these tight spaces. Flossing removes up to 80% of the film that hardens to plaque, which can cause inflamed gums (gingivitis), cavities, and tooth loss. Congratulations on your good oral health habit!

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    American Dental Association, Healthy People 2010

    This tool is intended only for adults 18 and older.

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