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  • Title: The in vivo corrosion of Dispersalloy.
    Author: McTigue D, Brice C, Nanda CR, Sarkar NK.
    Journal: J Oral Rehabil; 1984 Jul; 11(4):351-9. PubMed ID: 6589380.
    Abstract:
    The in vivo corrosion of Dispersalloy amalgam restorations was characterized by scanning electron microscopy and energy dispersive X-ray analysis. It was observed that the corrosion of CuSn resulted in pitting on the restoration surface. Corrosion of Sn-rich grain boundaries led to intergranular separation of gamma 1 grains. The tin released through corrosion reacted with Ca, P, Cl and O forming various insoluble complexes on the external surface, at the tooth-amalgam interface, and within the interior of the restoration. The demineralization of the amalgam-adjacent margin has been attributed to corrosion.
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