Always wash your hands thoroughly before use and put on the mouth guard by holding the strings and attaching them behind your ears. Never hold fingers or hands in the middle of the mouth guard. Housewife tips are to iron the mouthguard with an iron between uses to kill any bacteria.
The mouthguards are washed in at least 60 degrees machine washed and air dried. When dry, iron them with an iron. Alternatively, the mouth guard can be placed in boiling water for a few minutes and then air-dried, however, there is a risk that the color and pattern will not last as well.