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What causes tooth sensitivity?

Tooth sensitivity is caused when the inner nerves of a tooth are exposed to changes in temperature (most often cold). 60% of Americans suffer from tooth sensitivity as a result of diet, aggressive brushing, or cracked/broken teeth. In the case of whitening, the active ingredient in whitening gel opens up the pores to lift stains. In the process, the teeth become slightly dehydrated. This dehydration temporarily reduces insulation and allow the nerve to be more susceptible to changes in temperature. Don't Worry, tooth sensitivity due to whitening is temporary! Your teeth naturally rehydrate and remineralize. Sensitivity does not last more than 36 hours generally. We highly recommend using desensitizing gel after each whitening session. It relieves pain and helps protect/nourish the teeth as they rehydrate. How to whiten sensitive teeth Sensitive teeth remedies