[Influences of remelting on physical properties of denture base metal alloys].

Abstract

This research was designed in order to evaluate the mechanical properties, such as tensile strength, compressive strength, surface hardness and the elongation and reduction percentages of the length, of the metal specimens prepared from first, second and third generation castings of a denture base metal. The results revealed only a proportional decrease on surface hardnesses of the specimens casted from first, second and third meltings. While the other properties of all specimens had showed no significant differences between themselves, it was concluded that the denture base metals could be melted and used again at least three times.