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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

Early Dental Practices

Every science has its beginnings in myth and folklore. Early dental practices, in particular, are deeply tied to the mysticism surrounding the teeth and tongue. Because the mouth is the center of speech and nourishment, diverse cultures treat dental events in their lives with respect.

There is a universal human belief that teeth confer power. These remedies and practices were intended to cultivate that power-by keeping teeth for a lifetime. The same spirit-much refined-motivates modern dentistry.

Toothache

For relief, boil earthworms in oil and pour into the ear on the side where there is pain (Pliny, 77 AD).

Pour juice of onions by drops into the mouth, bite a piece of wood struck by lightning (ibid.).

Put tobacco in the armpit; hold a heated root of a birch on the cheek; or hold a small frog against the cheek or lick a toad's abdomen (Norwegian folklore).

Lay roasted parings of turnips, as hot as they may be, behind the ear; keep the feet in warm water, and rub them well with bran, just before bedtime (John Wesley, 1747).

Tooth Extraction

"Round the tooth to be drawn, he fastened a strong piece of catgut; to its other end he affixed a bullet. Then he charged a pistol with this bullet and a full measure of powder. The firing performed a speedy and effectual removal of the offending tooth" (Dr. Monsey, 1788).

In the US and Europe, the blacksmith did extractions, presumably because they had the "proper tools."

"If one had a tooth extracted, it must be burned, because, if a dog got it and swallowed it, one would have a dog's tooth come in its place" (Dr. Holmes, 1862).

Tooth Cleaning

To clean the teeth, rub them with the ashes of burnt bread (Poor Will's Almanack, 1780).

To stable and steadfast the teeth, and to keep the gummes in good case, it shall be very good every day in the morning to wash well the mouth with red wine (London, 1598).

In parts of England, the superstition persists: one prevents a toothache by "clothing one's right leg prior to the left" (G.P. Foley, 1972).

Tooth Growth

To make the teeth of children grow hastily, take the brain of a hen and rub the gums therewith. It shall make them grow without any sorrow or diseases or aching (London, 1934).

Roast the brains of a rabbit and rub a small amount on the gums (US, 1942).

+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.