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William Harrison Nebergall (21 December 1914 – 2 September 1978) was an inorganic chemist who synthesized the fluoride compatible polishing agent calcium pyrophosphate. [1] This discovery combined with stannous fluoride led to the development and release of the first fluoride containing toothpaste, Crest, in 1955. [2]
Sodium fluorosilicate is used in some countries as additives for water fluoridation, opal glass raw material, ore refining, or other fluoride chemical (like sodium fluoride, magnesium silicofluoride, cryolite, aluminum fluoride) production. [5] It also is an ingredient in some ceramic cements.
Dr. Dean's research on the fluoride-dental caries relationship, published in 1942, included 7,000 children from 21 cities in Colorado, Illinois, Indiana, and Ohio. The study concluded that the optimal amount of fluoride which minimized the risk of severe fluorosis but had positive benefits for tooth decay was 1 mg per day, per adult.
Eastern Illinois University: Charleston: 1895 8,857 Master's Governors State University: University Park: 1969 4,427 Master's Illinois State University: Normal: 1857 20,683 Research University University of Illinois Chicago: Chicago: 1965 33,747 Research University Part of the University of Illinois system: University of Illinois Springfield ...
Illinois State University (ISU) is a public research university in Normal, Illinois, United States. It was founded in 1857 as Illinois State Normal University and is ...
Also, although fluoride affects the physiology of dental bacteria, [90] its effect on bacterial growth does not seem to be relevant to cavity prevention. [91] Fluoride's effects depend on the total daily intake of fluoride from all sources. [13] About 70–90% of ingested fluoride is absorbed into the blood, where it distributes throughout the ...
Oxygen's highest fluoride is oxygen difluoride, [89] but fluorine can theoretically (as of 2012) oxidize it to a uniquely high oxidation state of +4 in the fluorocation: OF + 3 . [ 90 ] In addition, several chalcogen fluorides occur which have more than one chalcogen (O 2 F 2 , [ 91 ] S 2 F 10 , [ 92 ] etc.).
On July 1, 2021, she succeeded Larry Dietz as the 20th president of Illinois State University. [8] She was the first female president of the university. [8] She resigned abruptly less than two years later. [11]