Please provide valid documentation that fluoride "Eats Through Concrete & Steel."  As none exists, this should be a challenge
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There are those who attempted to associate fluoridation substances with lead leaching. However that theory was debunked by Urbansky/Schock in 2000, Jackson in 2002, and Macek in 2006. Fluoridation substances do not exist in water by the time it reaches the lead plumbing in older homes, where this leaching was erroneously theorized to occur, anyway.
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Given the mounds of nonsense I've exposed in your comments, it's obvious that you have not one clue as to what you are talking about.  You typify antifluoridationists who believe that because they are ignorant of the answers to concerns they pose, that such answers do not exist.  As I've demonstrated all over this page, there is nothing that you, or any otherr uninformed antifluoridationist can come up with that has not been long-since fully considered and appropriately addressed.
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Steven D. Slott, DDS