Larson, T H A clinical study of marginal integrity and tarnish behaviour of three Cu-rich amalgam systems. [electronic resource] - Journal of oral rehabilitation Jan 1979 - 61-6 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0305-182X Standard No.: 10.1111/j.1365-2842.1979.tb00406.x doi Subjects--Topical Terms: Analysis of VarianceChemical PhenomenaChemistry, PhysicalColorCopperDental AmalgamMercurySilverSurface PropertiesTime FactorsTin