Dental ceramic restoration using a multi-layered structure

Details Dental ceramic restoration using a multi-layered structure Dental ceramic restoration using a multi-layered structure

1994-06-27

1997-01-07

Burr, Edgar S.

Dentistry

Prosthodontics

Tooth construction

4332221, 433223, 106 35, A61C 1308

Patent

active

055910300

ABSTRACT:
A dental ceramic restoration having a multi-layered structure on a core, obtainable by applying an opaque layer composed of from 50 to 60 wt.-% of SiO.sub.2, 4 to 10 wt.-% of Na.sub.2 O, 0 to 2.5 wt.-% of CaO, 8 to 14 wt.-% of K.sub.2 O, 10 to 20 wt.-% of Al.sub.2 O.sub.3, 0 to 6 wt.-% of B.sub.2 O.sub.3, 5 to 12 wt.-% of TiO.sub.2, and pigments, preferably on oxide basis, onto a core, followed by sintering this assembly, and thereafter applying dentin and enamel layers composed of from 50 to 60 wt.-% of SiO.sub.2, 4 to 10 wt.-% of Na.sub.2 O, 0 to 2.5 wt.-% of CaO, 8 to 14 wt.-% of K.sub.2 O, 10 to 20 wt.-% of Al.sub.2 O.sub.3, 2 to 10 wt.-% B.sub.2 O.sub.3, preferably 4 to 8 wt.-% of B.sub.2 O.sub.3, and pigments, preferably on oxide basis, onto a core, followed by firing this assembly.

REFERENCES:
patent: 4358271 (1982-11-01), Sperner et al.
patent: 4789649 (1988-12-01), Abert et al.
patent: 4798536 (1989-01-01), Katz
patent: 5308391 (1994-05-01), Komma et al.
patent: 5346866 (1994-09-01), Komma et al.
J. Falbe et al., Rompp Chemie Lexikon, 9. Aufl., pp. 132-135 (1989).

Affiliated with

Also associated with

Rating

Dental ceramic restoration using a multi-layered structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dental ceramic restoration using a multi-layered structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dental ceramic restoration using a multi-layered structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1759832