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About Sensitive Teeth

Understanding Your Teeth

Your Enamel and Sensitive Teeth

Exposure of your tooth's dentine is the cause of regular or occasional nerve twinge and sensitivity, which can be quite annoying. Dentine lies just below the enamel. Thousands of microscopic tubes run through the dentine. Once dentine is exposed, the nerves within these tubules may become susceptible to triggers, resulting in a short, sharp nerve twinge in the tooth."Dentine hypersensitivity" is the feeling of sensitive sensation when you stimulate the exposed dentine of the tooth.
Sensodyne Freiliegendes Dentin
Good Oral Health Begins with Understanding Your Teeth

This diagram can also help you understand why dentine plays such an important role in causing sensitivity.

With Desensitising Toothpaste

Depending on the product's active ingredient, relief from the sensation of sensitive teeth could occur by nerve depolarisation, by occlusion of the exposed tissue within the dentine tubules or by forming a tooth-like layer over exposed dentine.

Mit Sensodyne Zahnpasta

Without Desensitising Toothpaste

Nerves within the tooth are triggered by hot and cold stimuli due to worn enamel or receding gums.


Ohne Sensodyne-Zahnpasta

Learn More: Sensitivity Triggers