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How Malocclusion or Bad Bite Relates To Different Dental Problems

It is ironic that one of the most common dental disorders is also the most neglected, malocclusion, bad bite. The way the teeth fit together when the jaw closes and chews is of profound importance to the long-term health of your teeth.

If surfaces of the teeth interfere with how the jaw moves, the teeth can be worked loose or the enamel can be worn away this is know an malocclusion, bad bite. The muscles that move the jaw are very powerful and can do major damage to the teeth when the biting surfaces don't fit together properly.

The problem can be compounded if teeth interfere with functional muscle patterns, the jaw muscles will attempt to "erase" the part of the tooth that interferes by grinding against it all the more. This can lead to even more severe wear or it may crack off a cusp or split the tooth. Or it may loosen the tooth or cause it to move out of alignment. The excessive muscle activity often results in pain in the muscle itself. All of the jaw muscles can become sore including the temporal muscles that are the source of many so-called tension headaches.

Some excessive muscle activity may be caused by emotional stress. But with some special exceptions, damage done by stress induced grinding and clenching can be minimized to a manageable level by equalizing the biting surfaces that are in conflict with jaw movements.

The power of the jaw muscles may surprise you. Some people can exert over 900 pounds of compressive force with their jaw muscles so you can imagine how much damage such force can do when you close into a single tooth and then work it from side to side. The effect is very much like working a fence post loose as the bone around the root breaks down. If you can put your finger on any tooth in your mouth, and then squeezing your teeth together causes the tooth to move, you can be sure that it is just a matter of time before there will be a problem with that tooth.

Sometimes in malocclusion, bad bite the muscle forces that work the tooth sideways stimulates bone around the root to build up and become stronger. When that happens, the tooth actually bends in its socket and this creates a microscopic chipping away close to the gum line to form a deep groove in the tooth. This is called an abfraction. These deep grooves at the gum line are often mistaken for toothbrush abrasion, but scientists have shown us that the grooves are actually the results of bending of the tooth in its socket. These grooves can lead to much sensitivity in those teeth because the opening into the tooth exposes nerves that can be exquisitely sensitive. Correction of the bite to remove excessive lateral forces on the teeth in most instances either eliminates the sensitivity completely or reduces it to a much more acceptable level.

Patients should be aware that much confusion surrounds the importance of a harmonious bite, including many misconceptions that have been fostered by flawed research that has failed to properly relate the bite interferences to the position and condition of the temporomandibular joints. Knowledgeable clinicians, however, are very much aware of this relationship and can achieve excellent results in making both your teeth and your jaw muscles more comfortable by bringing your whole biting into harmony and avoiding malocclusion, bad bite.

By Peter E. Dawson, DDS

Computerized Dental Radiography

These days, computers are really changing the way we live and work. You've probably experienced their impact in your own home. And believe me, technology is also helping raise our dental practice to a new level of safety, accuracy, and comfort.

Keeping up with all these advances is a full-time occupation that's as important as my work at chairside. One of the most promising of these breakthroughs is an improvement on the oldest evaluation technology we have - dental x-rays.

For close to a century, dentists have used x-rays to detect cavities and damage invisible to the eye. We've long been aware of the drawbacks. Though x-ray radiation is slight, many patients find it a cause for concern. And reading the negative requires a skilled, professional eye-which means my patients can't see what I see.

That's why my office uses a Computed Dental Radiography System as an x-ray alternative. A computer enhances a "photo" of your teeth and shows it instantly on a screen. This new system requires 90% less radiation than the old film x-rays, and can magnify the image up to 300 times. It's as easy to read as a snapshot. When I discuss something I see in your mouth, you'll be able to view it right along with me.

This is an exciting time to be a dentist. We're re-thinking and refining virtually every aspect of our dental practice, and I wanted to pass a bit of it along to you.

+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.