Fluoride, or Hydrofluorosilic acid that is put into tap water is a waste by-product derived from the industrial manufacture of aerosols, aluminium, fertilizers, insecticides, lubricants, pharmaceuticals, plastics, uranium and zinc.
American toothpastes containing fluoride are by law obliged to state, '"WARNING: Keep out of reach of children under 6 years of age. If you accidentally swallow more than used for brushing, seek professional help or contact a poison control center immediately."
It is also a Part II Poison under the UK Poisons Act 1972 ranking in toxicity above lead and just below arsenic.
Hitler used fluoride in the water to induce docility.
10 Facts about Fluoride:
http://www.fluoridealert.org/fluoride-facts.htm
50 Reasons to Oppose Fluoridation:
http://www.fluoridealert.org/50-reasons.htm
Adverse health effects of fluoride:
http://www.FluorideAction.Net/health