For any contact sport, in particular martial arts, protecting your teeth is paramount. Nobody wants chipped teeth or worse from being punched in the face during boxing, Muay Thai, MMA or elbowed in BJJ grappling, which is why gum shields are, more often than not, compulsory for your own safety. Gum shields are available from many different sports and fightwear brands, and come in a range of designs and colours. There are two styles of gum shields: boil n bite and custom. The boil n bite gum shields are the cheapest of the two and are fitted to your gum shape by boiling and then biting them. Custom gum shields are the dearer choice due to the work done by the dental lab. With custom gum shields, a home impression kit will be sent which you use to make impressions of your gum and teeth using the clay and mouth trays provided. After sending your impression back to the dental lab, the dentist will make a gum shield based upon your impression and a few weeks later you'll receive your custom fit gum shield in the post. Due to the accurate impression, the custom fit gum shields are a much better fit and are worth the extra money if you're serious about your martial arts, competitions and fights.