Friday, December 10, 2010

is teeth whitening at the dentist *really* any more effective than the stuff you buy at the shop?

My dentist wants to charge me a seemingly ludicrous idea for what looks like the same gum-shield type thing and gel that you squeeze into it, that I can get from Target for about a fifth the price. So, what's the difference?
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it lasts longer, and it does all your teeth-the ones you buy in a store really only covers your front teeth.
Source

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