Tapout adult mouth guard. The Tapout mouthguard comes with a $30,000 dental warranty. One of the best warranties in the business giving every coach, parent and athlete an extra sense of security and piece of mind knowing that they are using excellent protection. While wearing the Tapout mouth guard, the TMJ dlls with fluid as a natural lubricant and shock absorber. The tap out mouthguard properly positions your TMJ during stress related activities.