A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
22/155, 83/8
A61C 5/10 (2006.01) A61C 13/00 (2006.01)
Patent
CA 1293103
A PROCESS FOR MAKING METAL DENTAL RESTORATIONS ABSTRACT OF THE DISCLOSURE The process for making metal dental restorations consists in that an impression of the tooth or jaw to be treated is prepared using an electrically non-conductive materiel, the inner wall of said impression is coated with a heated low-melting alloy and then the interior is filled up with filling material in which fixing pins are inserted in the case of crowns, inlays and bridges. Alternatively, the impression is filled up with tradiational filling materials and an electric conductive coating is produced by vaporizing a metal layer, spraying a conductive lacquer or currentless deposition of an electrically conductive layer. Again, alternatively the impression may be filled up with electrically conductive plastic. The replica of said tooth so produced is separated from the impression, and there is galvanically applied an intermediate layer of a base metal after which one or more layers of high-melting point noble metals are galvanically applied to the intermediate layer, the filling material, the innermost electrically conductive layer and the intermediate layer first being then removed and, if desired, porcelain and/or plastic is applied as facing or substitute teeth on the dental restorations thus resulting.
531228
Hornig Wolfgang
Prodenta Ag
Proulx Eugene E.
LandOfFree
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