﻿ Sensitive Teeth
The Cleveland Clinic

Sensitive Teeth


What Causes Tooth Sensitivity?

Tooth sensitivity occurs when the underlying layer of your teeth - the dentin - becomes exposed as a result of receding gum tissue (the protective blanket that covers the tooth roots). The roots, which are not covered by hard enamel, contain thousands of tiny tubules leading to the tooth's never center (the pulp). These dentinal tubules (or channels) allow the stimuli - for example, the hot, cold, or sweet food - to reach the nerve in your tooth, which results in the pain you feel.

There are many factors that may lead to the development of tooth sensitivity, including.


  • Teeth grinding . grinding or clenching your teeth may wear down the enamel and expose underlying dentin.
  • Tooth whitening products or toothpaste with baking soda and peroxide. These products are major contributors to teeth sensitivity.