In healthy teeth, porous tissue called dentin is protected by your gums and the hard enamel shell of your teeth. When this protection is lost, microscopic holes in the dentin—called tubules—allow heat, cold and other irritants to be transmitted back to the tooth nerve, thereby triggering pain.
Dentin can become exposed by:
Depending on the diagnosis, your dentist may recommend one or more of the following treatments to relieve the symptoms of sensitive teeth:
A sensitivity protection toothpaste usually takes several weeks to ease pain. Follow your dentist’s instructions on the regular use of sensitivity protection products.