Tmj Association - In Your Local Area

Grinding Teeth: Do You Have A Problem With Your Bite?

Problems with the way your teeth fit together occur in many different ways. Some bite problems cause discomfort or even pain, and that pain can masquerade as problems that you would not readily associate with your teeth. Some bite problems can cause major damage to your teeth without producing any obvious discomfort.

There are some pretty simple ways that anyone can detect when a problem with the bite is causing or at least contributing to pain or discomfort.

The clench test: With your mouth empty so there is nothing between your teeth to bite on, close your teeth together and squeeze hard. If clenching your teeth together causes any sign of discomfort in any tooth, you have a disharmony in your bite.

Teeth that are sensitive to cold often get that way from the extra pounding they take if any part of that tooth strikes before the rest of the teeth contact during closure. Use the clench test to see if the extra sensitivity is related to an uneven bite. Squeeze hard. If you can make any tooth hurt by empty mouth clenching, the bite is probably the main reason for the sensitivity. This is a good way to find out if a new filling or crown is "high." If it hurts when you clench, it is probably not in perfect harmony with a correct bite. You should be able to bite hard and grind your teeth together in all directions without feeling discomfort in any tooth if your bite is perfect. The exception to this is if you have advanced periodontal disease, you may have several teeth that can't accept firm biting, but even then, you should not normally feel pain in a single tooth when biting.

If biting hard causes pain or discomfort in the jaw joint, (you may feel it just in front of your ear), you can suspect a possible relationship between your bite and a temporomandibular joint problem. It may be associated with a structural disorder in your TMJ, but more often the pain is coming from certain muscles that move your jaw joints to accommodate a bite that is not in harmony with your TMJs. Your TMJ dentist should be able to diagnose the exact source of the pain.

Look for severe wear on your teeth, as this is another sign that your bite is not in harmony. If you have worn all the enamel off the biting edges of your teeth, you will see a darker colored surface. This is dentin and it will wear down seven times faster than the much harder enamel that you've already worn through. So ask your dentist to evaluate what is causing so much wear. This wear can be especially damaging when it is on your front teeth, so if you notice your lower front teeth have worn down to dentin, have your bite checked. Better yet, don't wait till all the enamel is gone. Correcting your bite may stop or at least slow down the wear process.

By Peter E. Dawson, DDS

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.

What Is TMJ?

Jaw pain and jaw problems are the hallmarks of TMJ disorder. But first, it's important to understand the difference between two abbreviations: TMJ and TMD.

The temporomandibular joint (jaw joint) is abbreviated TMJ. Everyone has two TMJs, one on the left and one on the right, that hold the jaw (mandible) in place. The TMJ itself is a normal part of every healthy body.

On the other hand, TMD is not normal. TMD stands for temporomandibular joint disorder (TMJ disorder or dysfunction). The cause of TMJ dysfunction is not always clear. However, certain factors are associated with increased TMJ symptoms, including:

• Teeth grinding or jaw clenching, especially at night (a condition known as bruxism)
• Jaw dislocation or another jaw injury
• Arthritis or other joint problems
• Stress

These are among the most common symptoms of TMJ:

• Popping jaw or clicking jaw
• Sore jaw
• TMJ headache (a TMJ headache feels very different from TMJ jaw pain)

TMJ dentists and other TMJ specialists can offer a range of treatments for TMJ.

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.