Teeth Whitening London

David asks…Are crest whitening strips bad for sensitive teeth?i have kinda sensitive teeth and use sensodyne toothpaste and they have been fine lately. but people say that they are bad for sensitive teeth. why are they bad for sensitive teeth? i looked them up online and there are whitening strips for sensitive teeth but the comments say they dont work at all. the other strips have good comments....so help me out here!!! p.s. if they are bad for sensitive teeth wat do they do to your teeth

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