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  • Title: Corrosion under static and dynamic conditions of alloys used for magnetic retention in dentistry.
    Author: Angelini E, Pezzoli M, Zucchi F.
    Journal: J Prosthet Dent; 1991 Jun; 65(6):848-53. PubMed ID: 2072334.
    Abstract:
    In recent years magnetic retention has gained increasing popularity in dental practice. This investigation compared the corrosion resistance of the palladium-cobalt ferromagnetic alloy (constituent of the keeper cemented on the abutment teeth) coupled with the samarium-cobalt magnets embedded in the removable part of the denture. The behavior of three couples (cobalt-palladium, cobalt-palladium/titanium, and cobalt-palladium/palladium) has been studied. The magnets, because of their poor corrosion resistance, are encapsulated in various materials. To simulate clinical conditions, characterized by the continuous movement of the keeper with respect to the magnet, the experiments were conducted in artificial saliva under intermittent and continuous wear.
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