History of mouthguards: Sports mouthguards were first developed in countries where polo, soccer and boxing were played, and the first individual mouthguards were made in Germany in the 1970s using heat-pressed film technology. According to the American Dental Association, the wearing of mouth guards has prevented 200,000 sports-related oral injuries in the United States each year. According to figures released by the American Youth Sports Association, 5 million teeth in the United States are still damaged to varying degrees during sports each year. Mouthguard function: By wearing a personalized mouthguard can effectively reduce the risk of dental and mouth injuries in youth and adults during sports. Wearing a personalized mouthguard provides better protection for the teeth, alveolar bone, jawbone and condyles when exposed to external forces, reducing the risk of injury.