Kirkegaard, E A method for in vitro studies of enamel fluoride uptake in single tooth surfaces with reference to NaF, NaF-H3PO4 and Na2SnF6. [electronic resource] - Caries research 1971 - 20-1 p. digital Publication Type: Journal Article ISSN: 0008-6568 Subjects--Topical Terms: Dental Enamel--metabolism