Water fluoridation is safe

Thanks to my opponent for his response. Dental Fluorosis Even though dental fluorosis has increased, [1] most people only have mild or questionable levels of dental fluorosis. [1] The study also found that among persons aged 6-49, 16.0% had very mild fluorosis, 4.8% had mild fluorosis, 2.0% had moderate fluorosis, and less than 1% had severe fluorosis. For the remaining three-quarters of persons in this age group, 60.6% were unaffected by dental fluorosis and 16.5% were classified as having questionable dental fluorosis. [1] This means 77.1% have no or questionable dental fluorosis, leaving 22.9% with true dental fluorosis, which is less than the 41% in your chart. Also, this is the same time period (1999-2004), but my chart shows a better understanding as it includes 6-49 year olds and your chart only has 12-15 year olds counted, which is biased as adolescents aged 12-15 had the highest prevalence of dental fluorosis. [1] Cancer No refutation is given other than "it is irrelevant" and attacking on the EPA and similar organizations. More than 50 population-based studies looking at the potential link between water fluoride levels and cancer have been reported in the medical literature. Most of these have not found a strong link to cancer. [2] The NCI study identified no trends in cancer risk which could be attributed to the introduction of fluoride into drinking water. The study examined nationwide moronity data and incidence data from counties in Iowa and the Seattle, Washington, metropolitan area. There were no consistent differences in the trends in cancer mortality rates among males and females living in counties having initiated relative mortality rates from cancer, including cancer of the bones and joints, were similar after 20-35 years of fluoridation as they were in the years preceding fluoridation. In addition, there was no relationship between the introduction and duration of fluoridation and the patterns of cancer incidence rates, including those of the bone and joint, and the subset of osteosarcomas (Appendix E). For example, there were 91 observed cases of osteosarcoma in the fluoridated areas, when 93 cases were expected based on rates in non-fluoridated areas. [3] Neurotoxins This study does not show that adding fluoride to drinking water is unsafe. "Weanlings received drinking water containing 0, 75, 100, or 125 ppm F for 6 or 20 weeks, and 3 month-old adults received water containing 100 ppm F for 6 weeks. " [4] However, the MCL and MCLG for fluoride is 4.0 mg/L or 4.0 ppm. EPA has set this level of protection based on the best available science to prevent potential health problems. [5] 4 ppm is nowhere near 100 ppm of fluoride, therefore this study does not prove that water fluoridation is toxic to the nervous system. Propaganda "In addition, the positive propaganda behind fluoridation has a disturbing history." Propaganda is aiming to influence the attitude towards a position or cause by only showing a side of the argument. Shown side: Fluoride levels higher than 75 ppm can be toxic to the nervous system. Hidden side: The EPA only allows 4ppm of fluoride in water. [5] Shown side: "The scientific literature led us to believe that rats would easily tolerate 175 ppm fluoride in their drinking water. They did not." Hidden side: 175 ppm is 171 ppm higher than 4 ppm. [1]http://www.cdc.gov... [2]http://www.cancer.org... [3]http://www.health.gov... [4]http://www.ncbi.nlm.nih.gov... [5]http://water.epa.gov...