AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Muhler, J.C. : US Patent , Serial No. 566,247.2. Buttner, 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, 1957.