And again, don’t twist these words into what you want, which is “Richard said it’s better to use calcium fluoride than fluosilicic acid fluoride for fluoridation”. We only need a little amount in the external layer of enamel to form some fluorapatite and make it less soluble to a low pH of liquids or dental plaque. Victor – I have deleted your duplicate comment. When does one person ever actually totally understand another? Blowing it all out of proportion with extremely complicated over-analysis is a great way to cloud the issue, but in reality it is just plain dirt simple. But toxic concentrations are well above the optimum levels recommended for community water fluoridation. The statement was to indicate that if it had been used, there would not have been the death. It is the hydrated fluoride in water which is toxic at high concentrations. I think I have previously explained to you how ingested F in food and beverages help maintain concentrations of F in saliva which have a beneficial effect on existing teeth. If you have such valid evidence, then present it, properly cited. Fluoride in water is a contaminant, not a desirable material. “Window glass is etched by HF, not by chlorine.” Wow that sounds pretty bad. Morales-González JA, Gutiérrez-Salinas J, García-Ortiz L, Del Carmen Chima-Galán M, Madrigal-Santillán E, Esquivel-Soto J, Esquivel-Chirino C, González-Rubio MG (2010). Sorry Steve, but the Hooper Bay disaster is not a case with zero merit. Someone misquoting me or labeling me with a label that has no exact meaning, like a political term? Obesity-Associated Oxidative Stress: Strategies Finalized to Improve Redox State. Do you need a copy of the invoice? That published nothing new? Now what is the optimum level of Ca for drinking water that your 19 year long high school project experiments enabled you to determine? Calcium fluoride. Infinitely more people have been injured and killed by chlorine than all forms of fluoride put together. Fluoridated water is often treated with a calcium compound to raise the pH. Personally I would be interested in publishing that critique but that would require me hunting down the data that Peckham neglected to. Tell that to the kidney dialysis ward victims who were slaughtered before it was realized that fluoridated water at optimal levels cannot be used in kidney dialysis equipment. (as you have been told many times in previous discussions). Teichmann J, Riemann JF, Lange U (2011); “Prevalence of Exocrine Pancreatic Insufficiency in Women with Obesity Syndrome: Assessment by Pancreatic Fecal Elastase 1”; ISRN Gastroenterol. Furthermore, don’t change your intent. Here is an article that might help you get your head around the subject – Some chemistry issues involved in the fluoridation debate. Besides pandering to two-valued thinking rather than quantity. Prevalence of diagnosed and undiagnosed diabetes and prediabetes in New Zealand: findings from the 2008/09 Adult Nutrition Survey; NZMJ; Vol 126 No 1370; ISSN 1175 8716. It is an invisible, strong and extremely thin membrane covering the enamel and is anatomically and naturally an enduring part of the tooth. Artificial fluoride infusions with industrial compounds, made from reacting rock with sulfuric acid and trapping the toxic gases HF and SiF4 in a water solution of 23% fluosilicic acid H2SiF6, is not accompanied with appreciable calcium. Ken recently you linked to an old TED presentation which gave statistics of large numbers of deaths in the world from measles. Fluoride in the ocean where it belongs at 12 ppm is natural and harmless to fish due to the thousands of ppm calcium and magnesium in which it is present which buffer or block the assimilation of fluoride.. You even provided the “AFA’ as a convenient initialism. It is impossible to get much of an overfeed with CaF2 as the maximum concentration one would have in the stock solution is about 7 ppm F. This is simply a matter of F concentration and has nothing to do with “natural” or “industrial” sources.