Affiliation:
1. Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
Abstract
Enamel surfaces that had been treated with an acid phosphate-fluoride gel were analyzed for phosphorus, calcium, fluorine, and carbon using X-ray photoelectron spectroscopy. This technique revealed a heavy carbon coating on the enamel that overlays a surface composed of a 1:2 ratio of calcium to fluorine. Evidence is presented for a noncaL cium phosphorus species in the surface layer. Removal of successive layers of enamel by argon-ion etching showed a steady decrease in fluorine and a corresponding increase in phosphorus concentrations.
Reference11 articles.
1. Fluoride Concentrations in Deciduous Tooth Enamel of Children Chewing Sodium Fluoride Tablets
2. Fluoride Acquisition in Vitro by Etched Enamel from Acidulated Phosphate-Fluoride Preparations
3. Electron Probe and X-Ray Diffraction Microanalyses of Human Enamel Treated in vitro by Fluoride Solution
4. Siegbahn, K.; Nordling, C.; Fahlman, A.; Nordberg, R.; Hamrin, K.; Hedman, J.; Johansson, G.; Bergmark, T.; Karlsson, S.; Lindgren, I.; and Lindberg, B.: ESCA-Atomic, Molecular and Solid State Structure Studied by Means of Electron Spectroscopy, Uppsala: Almqvist and Wiksells, 1965, p 139.
5. Calibration of electron spectra
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