http://www.dentistcudahyca.com/why-tooth-whitening-toothpaste-does-not-work/
Why Teeth Bleaching Toothpaste Does Not Work?
There is a difference between teeth bleaching and teeth whitening. The term bleaching utilized to indicate elimination of surface area spots and whitening was to really bleach the teeth original shade. However in the last few years, the term bleaching has been utilized for both. So teeth bleaching toothpastes don't really whiten teeth due to the fact that they don't have any kind of whitening representatives in them. They are in their true sense of bleaching, indicating elimination of surface area spots just.
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