Question

Tooth Sensitivity

What is tooth sensitivity?

A Answers (5)

  • ADe Vizio, DMD, Dentistry, answered on behalf of Colgate

    Tooth sensitivity is usually fairly straightforward: your teeth hurt when you eat or drink something cold or hot, or when you brush or floss. In some cases, the cause is a cavity. In others, it's a cracked tooth, a gum problem, or a tooth that's lost much of its protective enamel.

    The cause could be as simple as brushing your teeth too vigorously. If you have tooth sensitivity, see your dentist. He or she will examine your teeth and gums and can prescribe a desensitizing toothpaste, which contain compounds that block sensations that make your teeth hurt. 

  • If you've ever suffered a painful sensation in your teeth from drinking or eating something hot or cold, that's sensitive teeth. Cavities and fractured teeth can cause sensitive teeth. But if your dentist has ruled these problems out, then worn tooth enamel, a cracked tooth or an exposed tooth root may be the cause.

    Your teeth contain small hollow tubes or canals, called dentin, that when it loses its protective covering allow heat and cold or acidic or sticky foods to stimulate the nerves and cells inside the tooth. 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.

  • AWilliam M. Litaker, Dentistry, answered
    Tooth sensitivity is a different feeling in a tooth usually related to being exposed to hot, cold, or sweet items. Teeth that have cavities may be sensitive. Teeth that have exposed roots from gums receding may be sensitive. If your teeth are sensitive, you should see your dentist who can best advise you as to how to treat your tooth sensitivity.
  • ADan Jenkins, Dentistry, answered

    Tooth sensitivity is a reaction to a nerve being exposed due either to decay, leaking fillings or crowns, or receding gums.

    The teeth tend to be more sensitive to cold than hot. If a tooth is sensitive to hot and it lasts for more than just a few minutes after taking the heat source away you may have an abscessed tooth!

  • APeggy Rosen, Dentistry, answered
    When the outer layer of tooth structure (enamel) is worn down or gums have receded, causing the tiny tube in the dentin to be exposed. The movement of fluid within tiny tubes located in the dentin caused nerve irritation resulting in tooth sensitivity or pain which can be triggered by eating or drinking hot or cold foods or beverages, eating acidic food, brushing, breathing or exposing them to cold air.
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What makes my teeth sensitive to cold?