The position of the Academy for Sports Dentistry is that to be adequate, a mouthguard must be properly fitted by a dentist and properly worn.
A dentist can also tailor the mouthguard to the demands of the athlete and the sport. Speech requirements, individual bite differences and relative dental and concussion injury risks of each sport can only be customized by fabricating an individual mouthguard. There is no comparison between a custom fitting mouthguard and an over-the-counter one.
Anyone participating in a sport that contains a chance of injury to the teeth, jaws, or oral soft tissues or which shows a potential risk of concussion could benefit from the use of a mouthguard. Put another way, anyone participating in a sport could benefit from a properly fitted and properly worn mouthguard and the mouthguard shouldn’t interfere with an athlete performing any sport at the highest level.