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7. Avoid Grinding Your Teeth

Some people grind their upper and lower teeth together, especially at night. "Over time, grinding can wear down the enamel surface and destroy teeth," says dentist Richard Price, DMD, a spokesman for the American Dental Association. "If you notice yourself clenching your jaw or grinding your teeth, talk to your dentist." Custom-fitted tooth guards can help protect teeth from damage.

8. Get Regular Check-ups

To keep your teeth strong, see your dentist every 6 months for a check-up and cleaning. Your dentist can spot signs of trouble, such as cavities or tooth grinding, before they do a lot of damage. Your dentist will also make sure that you're getting the right amount of fluoride to harden and protect enamel. If your water supply isn't fluoridated, ask your dentist if you need fluoride supplements, mouthwashes, or coatings for your teeth.

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