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Causes of Tooth Sensitivity


The Exposure of Dentin

Tooth sensitivity is caused by the gradual exposure of the softer part of your tooth that lies under the tooth enamel, called "dentin."

Dentin has tiny channels that contain nerve endings and are filled with fluid. Eating or drinking foods and drinks that are hot, cold or sweet can cause this fluid to move. This fluid movement causes the nerve endings to react in response, triggering a twinge of discomfort or a short, sharp pain.

Some of the most common dental conditions that can cause sensitive teeth include:

  • Brushing Too Hard
  • Gum Disease (Gingivitis)
  • Teeth Grinding
  • Receding Gums

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