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In 1931 at the University of Arizona Agricultural Experiment Station M C Smith E MLantz and H V Smith discovered that when given drinking water supplied with fluorinerats would develop tooth defects Further testing by H T Dean and E Elove of theUnited States Public Health Service confirmed this report and stated that what is knownas mottled tooth Mottled tooth is a condition in which white spots develop on the backteeth Gradually the white spots get darker and darker until the tooth is erodedcompletely This was believed to be caused by fluorine in drinking water Behrman pg181 A strong uproar was heard when this was released and people wanted allfluorineout of their water But later tests concluded that communities with high levels offluorinein their drinking water suffered less dental cavities Further testing concluded that atleast10 parts per million of fluorine could help to prevent cavities but more than 15 PPMwould cause mottled tooth so basically a little fluorine would be okay but a lot offluorinewould be bad Behrman 182 In 1938 with this information Dr Gerald Cox of the Mellon Institutebegan topromote the addition of fluoride to public water systems claiming that it would reducetooth decay however there were two major obstacles in his path The American MedicalAssociation and The American Dental Association Both associations wrote articles intheir journals about the dangers of fluoridation of water supplies The American DentalAssociation wrote the following in the October 1 1944 issue We do know the use ofdrinking water containing as little as 12 to 30 parts per million of fluorine will causesuchdevelopmental disturbances in bones as osteoslcerosis spondylosis and osteoperosis aswell as goiter and we cannot afford to run the risk of producing such serious systemicdisturbances in applying what is at present a doubtful procedure intended to preventdevelopment of dental disfigurements among children Yiamouyiannis pg 138 Despite these warnings Dr Cox continued to promote fluoridation ofwatersupplies and even convinced a Wisconsin dentist J J Frisch to promote
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