Why do whitening strips cause teeth sensitivity?

lapreller asked:


Ive never had a problem with my teeth being sensitive. The other day I tried one of those crest teeth whitening strips and after one use, my teeth are so sensitive I cant stand it! What is causing this? The main ingredient is peroxide, which I though was in most toothpaste anyway. Is it going to cause damage to my teeth?

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3 Responses to “Why do whitening strips cause teeth sensitivity?”

  1. Shelly t Says:

    they strip the enamale off your teeth. and yes they will cause damage. You can use sensatine toothpaste. there are a couple of diffrent one’s I think aqua fresh makes one too.

  2. tash_trois Says:

    The peroxide in your toothpaste is the same thing that can colour people’s hair blonde.

  3. zmxn6666 Says:

    because it chips away at the enamel

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