Elemental depth profiling of fluoridated hydroxyapatite: saving your dentition by the skin of your teeth?

  title={Elemental depth profiling of fluoridated hydroxyapatite: saving your dentition by the skin of your teeth?},
  author={Frank M{\"u}ller and Christian Zeitz and Hubert Mantz and K. H. Ehses and Flavio Soldera and J{\"o}rg Schmauch and Matthias Hannig and Stefan H{\"u}fner and Karin Jacobs},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  volume={26 24},
Structural and chemical changes that arise from fluoridation of hydroxyapatite (Ca(5)(PO(4))(3)OH or "HAp"), as representing the synthetic counterpart of tooth enamel, are investigated by X-ray photoelectron spectroscopy (XPS). Elemental depth profiles with a depth resolution on the nanometer scale were determined to reveal the effect of fluoridation in neutral (pH = 6.2) and acidic agents (pH = 4.2). With respect to the chemical composition and the crystal structure, XPS depth profiling… 

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