Dentine hypersensitivity

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Dentine hypersensitivity is an intense pain felt when the dentin of the teeth are exposed to hot or cold foods or drinks.

The Rapid flow of liquids in dentinal tubules can trigger nerves along the pulpal canal of the dentin causing pain. This hydrodynamic flow can be increased by cold, air pressure drying, sugar, sour (dehydrating chemicals), or forces acting onto the tooth.

Treatment can consist of Potassium nitrate, Gluma, and Fluoride therapy

Potassium nitrate is commonly used in toothpastes such as Sensodyne or Crest Sensitive as a remedy. There is some dispute about its effectiveness.