AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Hill, I.N. , Blayney, J.R. , and Wolf, W. : The Evanston Dental Caries Study. VI. A Comparison of the Prefluoride With the Postfluoride Caries Experience of the 6, 7, and 8-Year-Old Children in the Study Area (Evanston, Ill.), J. D. Res. 29: 534, 1950.