Stop using toothpaste and mouthwash containing this incredibly toxic substance.  It is absolutely false that it prevents dental caries.  It damages the immune system, the thyroid and the genes. Many non-fluoride toothpastes are available.  Jason and Tom’s of Maine provide fluoride-free toothpaste and mouthwash products.  Fluoride is also released into the environment from cooking with non-stick and Teflon cookware.  It contributes to the depletion of the ozone layer.