How to Get a Younger-Looking Smile

Tooth enamel wears away over time, exposing yellow beneath and making your smile gummy and more prone to stains. Here are a few simple ways to restore it to Julia Roberts-style wattage.
whitening-toothpaste

Credit: Getty Images

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Whitening toothpastes and strips

by Hallie Levine Sklar

These use peroxide to break up stains (look for products that have the American Dental Association Seal of Acceptance) in two to four weeks.

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