Choose a tray that best fits your mouth. All your teeth should fit comfortably inside of the tray.

Open the two colored impression material and begin kneading the two putties together until they become a uniform color.

After material is thoroughly mixed, roll into a sausage-shape and place into the outer walls of the tray you have selected.

Place tray in mouth and bite firmly until your teeth are close to touching the bottom of the tray. Pull your upper lip over the front of the tray. Leave tray in place until putty sets.

Remove tray from mouth and inspect impression. A good impression should include all the teeth and extend onto the gums.

Rinse in water. Allow to completely set for five minutes. Once set, place in bag it came in along with any unused trays. Make sure you clearly print your name on the bag.