Word: finn
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Dates: during 1940-1949
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...Dentist Sidney Bernard Finn of the University of Rochester fed a group of 90 rats a "caries-producing diet" of coarsely-ground corn. A second group of 45 rats, living on the same diet, had their teeth bathed in a weak mixture of potassium fluoride in water once a day. Results: 1) all the rats in Group I had large cavities; 2) the rats in Group II "showed a 70% reduction in dental decay"; 3) 13 of the rats in Group II had no cavities. The reduction was "not mainly in the size of the cavities, but in the number...