Use of palladium-silver alloys for the manufacture of dentures

Details Use of palladium-silver alloys for the manufacture of dentures Use of palladium-silver alloys for the manufacture of dentures

1989-02-27

1996-10-01

Millin, V.

Dentistry

Prosthodontics

Tooth construction

4332021, 106 35, A61C 1308

Patent

active

055607420

ABSTRACT:
Gold-free palladium-silver alloys for dentures [dental prostheses] which alloys can be veneered without color changes with dental ceramics and can be easily removed from the mold after the casting contain 45 to 80% by weight palladium, 7 to 50% by weight silver, 0 to 5% by weight gold, 0 to 5% by weight tin, 0 to 5% by weight indium, 0 to 3% by weight zinc, 0 to 2% by weight copper, 0 to 1% by weight ruthenium, iridium and/or rhenium, 0 to 7% by weight gallium, 0 to 5% by weight cobalt and 0 to 3% by weight germanium, whereby of the elements gallium, cobalt and germanium at least two must be present with contents totalling 2 to 9% by weight.

REFERENCES:
patent: 4067853 (1978-01-01), Schmitt et al.
patent: 4198556 (1989-01-01), Katz
patent: 4321042 (1982-03-01), Scheicher
patent: 4515634 (1985-05-01), Wu et al.
patent: 4943483 (1990-07-01), Ingersoll et al.
Chemical Abstracts, 96: 91689c (1982), abstract of Netherland Patent Application 8001820.

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