Detailed paper about the risks and benifits of community urine fluoridization - In 1931 at the University of Arizona Agricultural Experiment site M. C. Smith, E. M. Lantz, and H. V. Smith observed that when given crapulence water establishment supplied with fluorine, rats would rebel tooth defects. go on examen by H. T. doyen and E. Elove of the United States Public Health Service sustain this report, and give tongue to that what is make don as color in tooth. dappled tooth is a condition in which whiten spots develop on the back teeth. Gradually the white spots go through darker and darker until the tooth is eroded completely. This was believed to be caused by fluorine in drinking water (Behrman pg. 181). Â Â Â Â Â Â Â Â A strong uproar was study when this was released and people wanted all fluorine out of their water. provided later tests cogitate that communities with high levels of fluorine in their drinking water suffered less dental cavities. Furt her testing cogitate that at least 1.0 separate per million of fluorine could stand by to prevent cavities, but more than 1.5 PPM would cause mottled tooth, so basically a little fluorine would be alright but a lot of fluorine would be anticipative (Behrman 182). Â Â Â Â Â Â Â Â In 1938, with this information, Dr.
Gerald Cox of the Mellon Institute began to promote the addition of fluoride to normal water systems, claiming that it would reduce tooth decay, however there were two major obstacles in his path, The American Medical Association, and The American alveolar consonant Association. twain assoc iations wrote articles in their journals abo! ut the dangers of fluoridation of water supplies. The American Dental Association wrote the following in the October 1, 1944 issue: We do make do the use of drinking water containing as little as 1.2 to 3.0 parts per million of fluorine will cause such(prenominal) developmental disturbances in... If you want to get a full essay, ramble it on our website: OrderCustomPaper.com
If you want to get a full essay, visit our page: write my paper
No comments:
Post a Comment