How to Use: First, immerse your teeth for one minute in a cup of hot (nearly boiling) water. They will become flexible and prepared for custom fit as a result. Step 2: Firmly place the teeth over your natural teeth using a mirror. Your thumbs should be used to gently pat the impression material behind your natural teeth while pressing them firmly against your teeth. Step 3: After 30 seconds, carefully remove the teeth from your mouth and place them in a glass of ice water to cool. After the impression material has dried out, it turns white. Step 4: The imprint has been modified to fit the contours of your teeth and is ready for usage.