Children engaging in any extreme sports involving contact with other children such as martial arts or potential injury like skateboarding should always protect themselves with a junior mouthguard or gumshield designed for children. In order to determine the right size for your child’s mouthguard or gumshield, we recommend consulting a kids mouth guard sizing chart. Keep in mind that in many cases a taller child is going to have a larger dental arch, requiring a mouth guard that is larger. A mouth guard is designed to prevent your child from experiencing dental damage such as jaw injuries or breaking their teeth in more extreme sports environments.