Dental prosthesis

Details Dental prosthesis Dental prosthesis

1993-02-09

1994-09-13

Mancene, Gene

Dentistry

Prosthodontics

Tooth construction

4332021, A61C 1308

Patent

active

053463960

ABSTRACT:
A wax pattern is built up on the surface of the other end of a post comprising pure titanium. The wax pattern is used to produce a casting mold. While the casting mold is kept at a predetermined temperature, a crystallized glass having a thermal expansion coefficient falling within the range of .+-.5.times.10.sup.-7 with respect to that of pure titanium is melted and cast in the mold. The resultant mold product is heated and crystallized to obtain a dental prosthesis. A post comprising pure titanium is chemically bonded to a core comprising the crystallized glass. This invention provides a dental prosthesis which is easy to manufacture and nontoxic to the human body.

REFERENCES:
patent: 4129944 (1978-12-01), Sung et al.
patent: 4451236 (1984-05-01), Tarasov et al.
patent: 4585417 (1986-04-01), Sozio et al.
patent: 4799887 (1989-01-01), Hakamatsuka et al.
patent: 4828495 (1989-05-01), Bell et al.
patent: 5176747 (1993-01-01), Panzera et al.
English language Abstract of JP 4-231060.

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