A custom made sports guard is fabricated by a professional such as a dentist or hygienist. This custom-made sports guard meets the requirements for full protection, is comfortable, resilient, and not too thick. The mouthguard should remain tasteless and odourless throughout the playing season. It should feel comfortable and should not impede normal swallowing or breathing. The thickness of the mouthguard should provide adequate shock absorption to prevent injury or concussion if there is impact on the lower jaw.
The most common commercial sports guard used is the “boil and bite” guard which can be purchased in a sporting goods store or may even be provided by a sport league or coach. With this type of generic sports guard, a thermoplastic material is placed in boiled water for a short period of time and then placed over teeth. This action will form the mouth guard to teeth.