If your teeth are the approximate hue of hamburger, then surely you've considered the popular cosmetic procedure of whitening. Here's how whitening works: No matter what the delivery method, teeth are whitened by hydrogen peroxide. The oxygen hits the stains and breaks them up, then you wipe them off into oral oblivion. Be careful: It can be irritating to some people. In the dental office, a high-intensity light is used to activate the oxygen, while over-the-counter methods rely more on longer periods of contact time (half an hour for ten days to two weeks) to deliver the oxygen. For the average person, we recommend the tray method. With the exception of using home whitening strips, performing any whitening procedure more than once every two weeks, can cause your tooth enamel to thin.
Find out more about this book:YOU: Being Beautiful: The Owner's Manual to Inner and Outer Beauty