An improved mouthguard is provided for use by individuals having orthodontic appliances, such as braces. The mouthguard comprises an outer guard portion and an inner subguard portion. The subguard provides a barrier between the outer guard and the users braces, thereby allowing the outer guard to be custom fit to the users mouth and teeth using methods known in the art. Additionally, the subguard is secured to the outer guard, producing a one-piece mouthguard, and allows the mouthguard to be removably secured to the users braces, increasing the comfort and retention of the mouthguard within the users mouth. The mouthguard effectively protects the users braces, as well as the users teeth and mouth, from potential damage arising out impacts suffered by the user during sporting activities while improving the users comfort and performance in sports by allowing the user to breathe and speak uninhibited during the sporting activity.
