title: [Electron probe microanalysis of fluorine content in deciduous and permanent teeth from an area with a fluoride-deficient (0,3% mg/I) water supply].
abstract: The content of fluorine in deciduous and permanent teeth of young people was determined by x-ray microanalysis. The purpose of this investigation was to determine the concentrations of F in teeth without any supplementation of fluorides and to elaborate basic dates as a standard of comparison. F was measured in microvolumes with a wavelength-dispersive spectrometer (Step-Scan 100 sec) after coating with about 300 A of Carbon. The highest values were established in the outermost surface of enamel with quantities between 300 and 600 micrograms/g. The lower concentrations were found in deciduouns teeth. In both dentitions the F-content increases at the surface following the permanent change between de- and remineralization. In subsurface areas the values are decreasing quickly. At a deep of 10 microns from surface layer the content is only 70 micrograms/g and than it declines to a minimum of 20-30 micrograms/g.
authors.affiliation: Institut für Angewandte Biophysik am Beriech Medizin der Martin-Luther-Universität Halle-Wittenberg.
authors.forename: A
authors.initials: A
authors.lastname: Stiefel
authors.forename: U
authors.initials: U
authors.lastname: Cobet
authors.forename: W
authors.initials: W
authors.lastname: Binus
mesh_terms: D002648:Child; D003743:Dental Enamel / Q000737:chemistry*; D004577:Electron Probe Microanalysis; D005457:Fluoridation; D005459:Fluorides / Q000032:analysis*; D005858:Germany; D006801:Humans; D014070:Tooth / Q000737:chemistry; D014094:Tooth, Deciduous / Q000737:chemistry
chemical_list: D005459:Fluorides
vernacular_title: Elektronenstrahlmikroanalyse des Fluorgehaltes von Milch- und bleibenden Zähnen aus einem Gebiet mit "fluordefizitärem" Trinkwasser (Halle = 0,3 mg/I).