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Health.com: How to Fix the 9 Worst Signs of Aging

9 of 10

Fading Smile

Tooth enamel wears away over time, exposing yellow beneath and making your smile gummy and more prone to stains.

At home: Brush-on whitening gels in trays tend to work better than strips, says cosmetic dentist Debra Glassman.

At the doc's: Debra Gray King, a cosmetic dentist in Atlanta and an expert on ABC's "Extreme Makeover," says Zoom! Professional Teeth Whitening gives the best results: "In less than an hour, your teeth can get five shades whiter."

(Getty Images)
Health




The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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