Summer is the time for outdoor sports and you can protect your teeth, cheeks, gums and lips with a low-cost mouth guard. It could save you from a knocked out or chipped tooth, and it will prevent you from grinding your teeth during the big game.

No really, just dont. Weve all seen someone open a bottle with their teeth. An amazing feat? Nope, but a great way to cause micro fractures in your teeth. Using your teeth to rip open potato chip bags or to crush ice are also no nos.

The short answer is no. You most likely cannot sunburn your teeth. Shwew! Your lips on the other hand can sunburn. In fact, your lips might be the most susceptible to sunburn. Its important not to rely on regular sunscreen to protect your lips, choose a lip balm with a minimum of SPF 15. It is designed for your lips, and it will stick better. And just like with sunscreen, remember to reapply it every couple hours.

There are lots of reasons to smile all summer long. Evidence suggests that smiling reduces stress and helps your heart. So show those teeth! Brush twice a day, floss daily and smile big. You'll feel better when you do.