Two affordable products, that you probably have in your house. Back in the old, old days, this is how people got their "pearly whites:"
http://www.ehow.com/how_2054497_make-homemade-tooth-whitener.htmlStep 1 Buy some baking soda and hydrogen peroxide for this particular tooth whitening recipe.
Step 2 Take one teaspoon of baking soda and a couple of drops of hydrogen peroxide. Be careful to only use a small amount of the peroxide.
Step 3 Mix the baking soda with the hydrogen peroxide and use as you would toothpaste.
You can also gargle and swish with peroxide and water.
http://www.myhomeremedies.com/topic.cgi?topicid=200
Whitening teeth with Hydrogen Peroxide:
Studies on humans repeatedly using oral health products containing hydrogen peroxide have shown that:
* using mouth rinses or mouth washes that contain up to 1.5% hydrogen peroxide once or twice daily for up to 2 years had no adverse effects on the inside of the mouth, gums or tongue and can even improve gum health significantly.
However, one study reported discoloration of the inner lining of the mouth and the tongue when used 4 times daily for 5 weeks.
* adults who brushed with a toothpaste containing 0.87% hydrogen peroxide twice a day for 6 months showed no differences in gum health
* rinses containing 3% hydrogen peroxide used 3 to 5 times per day can cause irritation in people with a previous mouth injury; and
* rinsing and brushing 2 to 3 times daily with products containing more than 6% hydrogen peroxide can affect the tongue and gums in some healthy people.
There are studies being conducted upon hydrogen peroxide and DNA damage, cancer, reproductive disorders, etc.
So I cannot stress enough to use the proper dilution rate, no more than twice a day, and do not swallow!