Cold drinks, sweet foods... My teeth hurt just thinking about it!!

Do you ever feel like your teeth are really sensitive? Does that cold drink make you jump through the roof?

There are a few things that can cause sensitive teeth. Cavities and fractured teeth can cause those sensations. If these things aren't a problem according to your dentist, then missing enamel or exposed roots could be the real problem.

A layer of enamel, the strongest substance in the body, protects the crowns of healthy teeth. A layer called cementum protects the tooth root under the gum line. Under both enamel and cementum there is a layer called dentin. This layer is less dense than the other two.

The dentin contains microscopic tubules (small hollow tubes or canals). When the dentin loses its protective covering, the tubules allow foods and drinks of different temperature or acidic or sweet foods to irritate the nerve. This causes hypersensitivity and occasional discomfort. Fortunately, the irritation does not cause permanent damage to the pulp. Dentin may be exposed when gums recede. The result can be hypersensitivity near the gum line.

Proper oral hygiene is the key to preventing gums from receding and causing sensitive-tooth pain. If you brush your teeth incorrectly or even over-brush, gum problems can result. Ask your dentist if you have any questions about your daily oral hygiene routine.

But what can fix the problem?

Your dentist may suggest that you try a desensitizing toothpaste, which contains compounds that help block transmission of sensation from the tooth surface to the nerve. Desensitizing toothpaste usually requires several applications before the sensitivity is reduced.

If the desensitizing toothpaste does not ease your discomfort, your dentist may suggest in-office techniques. A fluoride gel, which strengthens tooth enamel and reduces the transmission of sensations, may be applied to the sensitive areas of the teeth.

If receding gums cause the sensitivity, your dentist may use materials that bond to the tooth root to "seal" the sensitive teeth. The sealer usually is composed of a plastic material.

In cases where hypersensitivity is severe and persistent and cannot be treated by other means, your dentist may recommend root canal or endodontic treatment to eliminate the problem.

If sensitive teeth bother you, we can help...

See more information at ada.org