1) Gardner DE, Smith FA, Hodge HC, Overton DE, Feltman R. The fluoride concentration of placental tissue as related to fluoride content in drinking water. Science. February 1952; 115(2982):208-209.
• This post hoc study is what passed as a ‘safety study.’ One of the authors, Hodge, was the leading proponent of fluoridation, converting the danger threshold of 1 ppm to the ‘optimal’ level and moving the danger threshold to 2.4 ppm. This study found fluoride concentration in the placentas of women consuming 1 ppm fluoridated water was above 2 ppm, acknowledged they had no way to determine the fetal fluoride level, but cavalierly opined the fluoride saturated placenta posed no danger to the mother.
2) Prenatal and postnatal ingestion of fluorides - A Progress Report. Reuben Feltman, D.D.S. Dental Digest. August 1956. pp 353-357.
• The best study done in that time period, the researchers determined the allergic population has a low tolerance that manifested as serious adverse effects in their test subjects. PHS researchers had to drop those test subjects and advised if in water, fluoride avoidance would be difficult. Researchers used controlled doses equivalent to fluoridated water and confirmed with placebo, it was the fluoride.
3) Prenatal and postnatal ingestion of fluorides - Fourteen years of investigation - Final report. Reuben Feltman, D.D.S. & George Kosel, B.S., M.S. Journal of Dental Medicine. October 1961; 16(4):190-198.
• This final report noted that fetal fluoride levels were approximately twice, tripled and quadrupled the control group dependent on type of fluoride used in the controlled dose. Researchers had no idea what the long term implications could be in the children (12.9 mcg/L v. 26.85, 32.68, and 44.8 mcg/L).
• Feltman & Kosel also unexpectedly noted moderate-severe dental fluorosis which is evidence of
fluoride poisoning as well as delayed tooth eruption they suspected was due to thyroid suppression.
• The PHS pulled further research funding with the statement, they ‘considered fluoridation settled.’
Well done Guy. It's important to correct quotation "errors" regarding F.
Other old documents that gave me pause were:
1) Gardner DE, Smith FA, Hodge HC, Overton DE, Feltman R. The fluoride concentration of placental tissue as related to fluoride content in drinking water. Science. February 1952; 115(2982):208-209.
• This post hoc study is what passed as a ‘safety study.’ One of the authors, Hodge, was the leading proponent of fluoridation, converting the danger threshold of 1 ppm to the ‘optimal’ level and moving the danger threshold to 2.4 ppm. This study found fluoride concentration in the placentas of women consuming 1 ppm fluoridated water was above 2 ppm, acknowledged they had no way to determine the fetal fluoride level, but cavalierly opined the fluoride saturated placenta posed no danger to the mother.
2) Prenatal and postnatal ingestion of fluorides - A Progress Report. Reuben Feltman, D.D.S. Dental Digest. August 1956. pp 353-357.
• The best study done in that time period, the researchers determined the allergic population has a low tolerance that manifested as serious adverse effects in their test subjects. PHS researchers had to drop those test subjects and advised if in water, fluoride avoidance would be difficult. Researchers used controlled doses equivalent to fluoridated water and confirmed with placebo, it was the fluoride.
3) Prenatal and postnatal ingestion of fluorides - Fourteen years of investigation - Final report. Reuben Feltman, D.D.S. & George Kosel, B.S., M.S. Journal of Dental Medicine. October 1961; 16(4):190-198.
• This final report noted that fetal fluoride levels were approximately twice, tripled and quadrupled the control group dependent on type of fluoride used in the controlled dose. Researchers had no idea what the long term implications could be in the children (12.9 mcg/L v. 26.85, 32.68, and 44.8 mcg/L).
• Feltman & Kosel also unexpectedly noted moderate-severe dental fluorosis which is evidence of
fluoride poisoning as well as delayed tooth eruption they suspected was due to thyroid suppression.
• The PHS pulled further research funding with the statement, they ‘considered fluoridation settled.’
Thank you very much for sharing! That's very interesting, and not at all surprising! :)