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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 4 (1989), No. 2     1. June 1989
Int J Oral Maxillofac Implants 4 (1989), No. 2  (01.06.1989)

Page 119-123

In Vitro Substance Loss Due to Galvanic Corrosion in Ti Implant / Ni-Cr Supraconstruction Systems
Geis-Gerstorfer, Jürgen / Weber, Heiner / Sauer, Karl Heinz
To characterize the galvanic corrosion of supraconstructions consisting of Ni-Cr alloys that come in contact with titanium implants, the resultant substance loss was determined. The measurement of the released substance masses was conducted by analysis of the electrolyte solutions with the aid of atomic absorption spectrometry and by approximate calculation using current density time curves, according to Faraday's law. The results of this study show that both methods allow a clear differentiation of the corrosion behavior of various Ni-Cr alloys that come in contact with titanium.

Keywords: atomic absorption, current density, galvanic corrosion, Ni-Cr supraconstruction, substance loss, Ti implant