Some people grind their teeth in their sleep causing irreparable damage to the enamel of their teeth. The wearing of a protective night guard helps prevent further damage to the tooth surface. These are made of plastic that fits snugly over teeth preventing the jaw from fully closing, thereby limiting contact between opposing teeth and the damage that occur during teeth grinding. They are indicated in those patients that grind their teeth in the night or during. To make a mouth guard an impression is taken of the teeth at the initial appointment and the mouth guard can be fitted in the practice one week later.