Artificial teeth construction

Details Artificial teeth construction Artificial teeth construction

1976-09-10

1978-11-14

Mack, John H.

Chemistry: electrical and wave energy

Processes and products

32 12, 204 32R, 427330, 427376C, 427405, 427406, A61C 508, C25D 534

Patent

active

041254422

ABSTRACT:
Composite metal/porcelain tooth reconstructions are manufactured by bonding porcelain to a basis metal which is pretreated by electrolytically depositing thereon a thin layer of a different metal. The pretreatment has the effect of increasing the bond strength between the metal and the porcelain.
If the basis metal is a noble metal, the different metal may be deposited directly, and the porcelain then bonded on. If the basis metal is a base metal the pretreatment preferably includes an etching step, deposition of a preliminary metal layer on the etched surface, followed by deposition of the main metal layer, followed by a final deposition of metal prior to bonding to the porcelain.

REFERENCES:
patent: 1782552 (1930-11-01), Supplee
patent: 2569453 (1951-10-01), Chester et al.
patent: 2819207 (1958-01-01), Shepard
patent: 2980998 (1961-04-01), Coleman et al.
patent: 3585064 (1971-06-01), Prosen
Modern Electroplating; Frederick A. Lowenheim, editor; John Wiley & Sons, Inc; New York, 1963, p. 434.

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