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Fluorine and Tin Uptake by Enamel Studied by X-Ray Photoelectron Spectroscopy (ESCA)
David M. Hercules
Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
Norman L. Craig
Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
ESCA has been combined with argon-ion etching to obtain depth profiles for SnF2treated enamel. Three zones of products from the topical treatment are detected: a layer of tin oxide on the surface; fluoroapatite + hydroxyapatite at depths below about 0.2 micron; an intermediate layer CaF2, Sn(OH)2, Sn2PO4OH, and fluoroapatite between the two. Sn3F3PO4 was not detected.
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Journal of Dental Research, Vol. 57, No. 2,
296-305 (1978)
DOI: 10.1177/00220345780570022601
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