I have seen them advertised, some boasting that they can make your teeth up to 2 shades whiter in less than 45 mins. They come with a peroxide solution and laser light, but I was wondering if they're effective and are they harmful in the long run. I have quit smoking and it has took its toll on my teeth during the years, making them discoloured and dirty looking. Would these kits help and are there any dangers in using them. Thanks for any contribution.
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i've never tried them, but i can say that the whitening strips do work quiet well. i've tried them before and within a few days you have bright white teeth! i don't know how white or not white you're teeth may be, mine are pretty normal, and they work for me. maybe you should try the whitening strips and see how well the work out for you first:)
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