I am using Crest White-Strips, and I have sensitive teeth for the first time ever. The package insert says this condition is temporary, but I'm just curious what the is mechanism of action of tooth pain/sensitivity.
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These whitening kits contain hydrogen pyroxide, which can act on nerves in the tooth canal. These sensations will dissipate after use of the strips is stopped. There will be no permanent damage to your teeth as long as you follow the instructions. Odd sensations, including tooth sensitivity are normal while using these types of strips.
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