Bombonatti, P. E.de Barros, L. E.Scaranelo, R. M.Pellizzer, A. J.2014-05-272014-05-271990-12-01Revista de Odontologia da UNESP, v. 19, n. 1, p. 203-209, 1990.0101-1774http://hdl.handle.net/11449/64064Being the surface roughness a fundamental property in the fit of the castings, it was determined the roughness of 5 high-copper casting alloys, according to the heating over their melting temperature. That way, the specimens made with smooth plastic in the shape of a rectangular plate, 2 mm x 7 mm x 11 mm were invested into a cristobalite investment. After heating and elimination on the plastic, the molds were filled by 3 g of molten alloy, casted in a electrical casting machine at the casting temperature at 25 degrees C and 50 degrees C overheating. The surface roughness was measured in a roughness analyser, Talysurf. As a result, it was verified that there is a variation of surface roughness among the alloys tested, and the heating of the alloys until 50 degrees C over the melting temperature does not interfere in the roughness.203-209porcopperdental alloydenturesurface propertytemperatureCopperDental AlloysDental Casting TechniqueEnglish AbstractSupport, Non-U.S. Gov'tSurface PropertiesTemperatureArtigoAcesso aberto2-s2.0-00256545042-s2.0-0025654504.pdf