Title:
歯科補綴物及びその方法
Document Type and Number:
Japanese Patent JP4819395
Kind Code:
B2
Abstract:
Dental prostheses are machined from a metallic body instead of being made by lost wax casting. Suitable gold base alloys have only base metal alloying additions which are more readily oxidized than gold and when combined with the gold can be age hardened. Exemplary metals include titanium, zirconium, yttrium and chromium. Scrap from the machining of a dental prosthesis is melted in air so that the base metals are all oxidized and substantially pure gold is reclaimed for reuse in new alloys.
Inventors:
Paul Jay Cascon
Application Number:
JP2005141113A
Publication Date:
November 24, 2011
Filing Date:
May 13, 2005
Export Citation:
Assignee:
The Agen Corporation
International Classes:
A61C13/08; A61C13/00; A61K6/04; C22B7/00; C22B11/02; C22C5/02; C22F1/00; C22F1/14; A61C8/00
Domestic Patent References:
| JP51139522A | ||||
| JP56003636A | ||||
| JP4193924A | ||||
| JP7166266A | ||||
| JP8067931A | ||||
| JP9165633A | ||||
| JP8260076A |
Foreign References:
| DE4419408C1 | ||||
| US5922276 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nagasaka Tomoyasu
Masaya Nishiyama
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nagasaka Tomoyasu
Masaya Nishiyama