Bring 4 inches of water to a boil, remove from heat and cool for 6 minutes.
Submerge one of the mouth trays into the hot water for 10 seconds or until the tray appears soft. Important: for best results do not overheat mouth trays.
Place the mouth tray into your mouth, covering your upper teeth. Close your mouth, suck all the air and excess water from the tray, creating suction between the tray and your teeth.
Gently push the tray against the front of your teeth by pressing against your upper lip. Wait 15 seconds before removing the tray from your mouth.
Repeat steps above for lower mouth tray.
After molding both trays, use scissors to cut any excess material from the gum line. This will help to avoid any possible gum irritation. Use scissors to cut the finger tabs from both trays.