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"When I worked on Paulina Porizkova 20 years ago, she insisted I keep her teeth their natural color. Recently, she asked me to whiten them. &amp;amp;#8220;I am an American woman now,&amp;amp;#8221; she explained. We live in a society that prizes youth, and white teeth are part of that. Story continues below&amp;amp;#8230; More From Allure Tooth-Whitening Lipsticks Should Salons Whiten Teeth? White-Wine Teeth Check your color. The peroxide in whitening treatments doesn&amp;amp;#8217;t work for everyone. To figure out whether you&amp;amp;#8217;re a candidate, hold a piece of white paper next to your mouth. If your teeth seem yellow, the treatments will work. If they look gray, the staining is from within and can only be fixed by covering them with bonding or veneers. People with fair skin have thinner enamel and are more likely to have this type of discoloration. Do it yourself. The at-home whitening systems that use peroxide are just as effective&amp;amp;#8212;but not as fast&amp;amp;#8212;as office treatments, which combine peroxide and a light or laser. I like Crest Whitestrips. Avoid trays that were not created with a mold of your mouth; the peroxide can leak out and irritate your gums. Prep your teeth. Before you whiten them, your teeth should be as clean as possible. Do it right after a cleaning at the dentist, so the peroxide is in direct contact with your enamel, not plaque. Eat right. Chase dark liquids such as black coffee or red wine with water; it takes 30 seconds for the pigment to penetrate, so water will wash it away. Adding non-skim milk to coffee also helps, as does eating foods high in cellulose, such as carrots, celery, and kale."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.glamour.com/weddings/2010/04/allure-insiders-guide-how-to-whiten-your-teeth>