Yellow dental alloy with a high gold content

Details Yellow dental alloy with a high gold content Yellow dental alloy with a high gold content

1991-10-02

1993-06-22

Dean, R.

Dentistry

Prosthodontics

Tooth construction

420509, 420510, 4332001, A61C 1308, C22C 502

Patent

active

052212076

ABSTRACT:
A yellow dental alloy is disclosed with high gold content for castings and ceramic veneers with an adjusted thermal expansion coefficient that does not produce any undesirable discoloration of the ceramic veneers and that is very hard. It contains 70 to 85% by weight gold, 5 to 13% by weight silver, 2 to 9% by weight platinum, 0 to 4.5% by weight palladium, 0.05 to 1% by weight iridium, rhenium, rhodium and/or ruthenium, 2 to 8% by weight copper, 0.1 to 6% by weight indium, zinc and/or germanium, and 0 to 4% by weight gallium, iron and/or tungsten.

REFERENCES:
patent: 4007040 (1977-02-01), Kropp

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