[Nickel release of dental alloys as a function of the pH value of the corrosive solution].
Ni-59-65Cr26-23Mo11-9 alloys released distinctly lower quantities of nickel in lactic acid/saline solutions at pH 2.3, 4.2, or 6.5 than type Ni66-85Cr15-13Mo7-0 alloys for a period of 1 day and, subsequently, periods of 3 days over a total period of 33 days. While nickel solubility was similarly high at pH 2.3 and 4.2 (varying between 0.1 microns/cm2 d and 222 microns/cm2 d depending on the type of alloy), a maximum of 2 microns/cm2 d of nickel dissolved from all tested alloys at a pH value of 6.5.
Pfeiffer
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Klinik und Poliklinik für Zahn-, Mund- und Kieferheilkunde der Universität zu Köln.
Schwickerath
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D002858:Chromium Alloys / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007773:Lactates; D019344:Lactic Acid; D008422:Materials Testing; D008982:Molybdenum / Q000737:chemistry; D009532:Nickel / Q000737:chemistry*; D012995:Solubility
D002858:Chromium Alloys; D007773:Lactates; D019344:Lactic Acid; D009532:Nickel; D008982:Molybdenum
Nickelabgabe von Dentallegierungen in Abhängigkeit vom pH-Wert der Korrosionslösung.