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According to the CDC, "Given the volumes of chemicals used in water fluoridation, a pharmaceutical grade of sodium fluoride for fluoridation could potentially contain much higher levels of arsenic, radionuclides, and regulated heavy metals than a NSF/ANSI Standard 60-certified product [the standard that water fluoridation chemicals must meet]. Several uncontrolled orphan drug studies in this country and one placebo-controlled study in Europe have shown that the administration of sodium fluoride will slow or halt the progression of the hearing loss that occurs with otosclerosis. This is the fourth ranking chemical of the halogens in activity and is therefore easily displaced by fluorine and its compounds, such as sodium fluoride, contained in toothpaste. |
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