1. Why would I care whether you blocked me on your little FB page or not?
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2.  It is obvious from your comments that you consider the posting of facts and evidence to be “spamming”.  Actually, I generally stick to replying to antifluoridationist false claims and misinformation.  The number of my comments is in direct proportion to the misinformative comments of antifluoridationists.  Yes, that is a huge number.
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3. There is no “Harvard study proving fluoride is a neurotixin”.  That’s simply pure fabrication on your part.  The study to which you make a garbled reference is that of Grandjean and Choi, not Harvard, and it “proves” no such thing as you claim.  Perhaps you should consider befriending  science and accuracy, rather than “Google”.
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4.  The only dental fluorosis which may be associated with optimally fluoridated water is mild to very mild, a barely detectable effect which causes no adverse effect on cosmetics, form, function, or health of teeth.
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Steven D. Slott, DDS