A mouth guard should be a standard part of your child’s athletic gear. You can opt for a stock guard, though they can be uncomfortable. The boil-and-bite variety offers a customizable fit, better comfort, and therefore, kids tend to actually wear them. The most comfortable fitting guard is made by a dentist, using a dental impression. Remember, your child will need his or her mouth guard cleaned and dried after each use. Make sure the case is also clean and dry before storing the device. A mouth guard can protect against injury to teeth, teeth nerves, tongues, lips, cheeks, and even concussion, in some cases.