A mouth guard is a rail, usually placed on the upper teeth, to prevent damage from impacts to the oral region in sports. A mouth guard made at a dental laboratory provides better protection against impacts coming from straight ahead than mouth guards bought off the shelf and shaped by the user. An individual mouth guard also fits better, making it more comfortable to use.
Casts are taken of the teeth at an appointment, and an individual mouth guard is made at a dental laboratory based on them.
When you need to buy a mouth guard.