Some people try to get whiter smiles by whitening or bleaching their teeth. There are many different types:
Whitening Toothpastes: These are essentially polishers. They are more gritty.
Strips: These you apply to your teeth and leave them on. These basically bleach your teeth because they contain peroxide based solution.
Mouthwashes: These are supposed to whiten your teeth and you take them like mouthwash. Similar to strips they contain peroxide based solution that basically slowly bleaches your teeth!
More info
http://www.webmd.com/oral-health/guide/teeth-whitening
But be careful if you decide to whiten your teeth. The peroxide will strip away the enamel on your teeth and remember enamel doesn’t grow back! The safest of these would be the toothpastes but if possible try to find natural ones without peroxide.
-Amanda and Erik
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