Shock Doctor is the #1 Mouthguard in the World with more than 75 million mouthguards sold over the last 25 years. Our illustrious history began in 1992, when EZ Gard Industries sold the first fully engineered mouthguard for $20. Building on that category strength for the next decade, the Shock Doctor brand evolved into a sports protection brand in 2004—and now, with a strategy focused on innovation and fearlessly targeting market segments, Shock Doctor is firmly entrenched as a global leader.