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Knutson, J.W. , and Armstrong, W.D.The Effect of Topically Applied Sodium Fluoride on Dental Caries Experience, Public Health Reports (U.S.) , 58:1701-15, 1943.
4.
Büttner, W., and Muhler, J.C.A Method for the Determination of Enamel Solubility in Intact Rat Molars Using Highly Concentrated Fluoride Solutions, J. dent. Res., 36:897-903, 1957.
5.
Sundvall-Hagland, I., Brudevold, F., Armstrong , W.D., Gardner, D.E., and Smith, F.A.A Comparison of the Increment of Fluoride in Enamel and the Reduction in Dental Caries Resulting from Topical Fluoride Applications, Arch. oral Biol. , 1:74-79, 1959.
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Stephan, R.M. , and Harris, M.R.The Development of Various Types of Carious Lesions in Rats Fed on a Synthetic Diet, J. dent. Res., 32:687, 1953 (abstract).
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Willard, H.H. , and Winter, O.B.Volumetric Method for Determination of Fluorine, Ind. Eng. Chem., Anal. Ed., 5:7-10, 1933.
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Brudevold, F. , Gardner, D.E., and Smith, F.A.The Distribution of Fluoride in Human Enamel , J. dent. Res., 35:420-29, 1956.
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Francis, M.D. , and Meckel, A.H.The In Vitro Formation and Quantitative Evaluation of Carious Lesions, Arch. oral Biol., 8:1-12, 1963.
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Wharton, H.W.Isolation and Determination of Microgram Amounts of Fluoride in Materials Containing Calcium and Orthophosphate, Anal. Chem., 34:1296-98, 1962.
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Francis, M.D.Methods of Evaluating Tin and Fluoride Salts as Anticaries Agents in Animal Caries Experiments, Abstract #230, Fortieth General Meeting of the I.A.D.R, 1962.
