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Flashing a big, beautiful smile can work wonders. For one thing, it's contagious. Studies show that just seeing a friend break out in a smile triggers muscles in your face that cause you to smile back. Amazingly, the very act of smiling—even if you're feeling down—can improve your mood.
But it can be hard to put on a happy face when you feel self-conscious about your teeth or breath. Try these tips to help improve your oral health and get back that dazzling smile.
Sources: Obayashi Y, Uehara S, Yuasa A, Otaka Y. ... + 13
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