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Gold alloys for porcelain-fused-to-metal dental restorations

1980; Springer Science+Business Media; Volume: 13; Issue: 2 Linguagem: Inglês

10.1007/bf03215454

0017-1557

Randall M. German,

Advanced X-ray and CT Imaging

The age-hardenable dental alloys that have been developed specifically for use with porcelain veneers rely on high gold contents to ensure biocompatibility and on palladium and platinum additions to raise their melting range. Base metals such as iron, cobalt, nickel and copper are used to promote hardness and to give these alloys an age hardening potential. This study shows that age hardening results from the ordering of an FePt-type compound, a reaction which is insensitive to variations in porcelain firing cycles.