The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 07, 2017

Filed:

Apr. 22, 2014
Applicant:

Ivoclar Vivadent Ag, Schaan, LI;

Inventors:

Dmitri Brodkin, Livingston, NJ (US);

Moisey Y. Gamarnik, Warminster, PA (US);

Assignee:

Ivoclar Vivadent AG, Schaan, LI;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 3/12 (2006.01); A61C 13/08 (2006.01); A61C 13/00 (2006.01); A61C 13/083 (2006.01); C01G 25/00 (2006.01); C04B 35/486 (2006.01); C04B 35/626 (2006.01); C04B 35/632 (2006.01); C04B 35/645 (2006.01); B82Y 30/00 (2011.01); B22F 3/22 (2006.01); B22F 3/14 (2006.01);
U.S. Cl.
CPC ...
A61C 13/081 (2013.01); A61C 13/0006 (2013.01); A61C 13/083 (2013.01); B82Y 30/00 (2013.01); C01G 25/00 (2013.01); C04B 35/486 (2013.01); C04B 35/62695 (2013.01); C04B 35/632 (2013.01); C04B 35/645 (2013.01); B22F 3/12 (2013.01); B22F 3/14 (2013.01); B22F 3/22 (2013.01); B22F 3/225 (2013.01); C01P 2004/64 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3241 (2013.01); C04B 2235/3246 (2013.01); C04B 2235/3251 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3279 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/549 (2013.01); C04B 2235/5427 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/5472 (2013.01); C04B 2235/604 (2013.01); C04B 2235/6022 (2013.01); C04B 2235/6023 (2013.01); C04B 2235/6026 (2013.01); C04B 2235/6027 (2013.01); C04B 2235/612 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6565 (2013.01); C04B 2235/667 (2013.01); C04B 2235/668 (2013.01); C04B 2235/77 (2013.01); C04B 2235/785 (2013.01); C04B 2235/94 (2013.01); C04B 2235/9615 (2013.01); C04B 2235/9653 (2013.01);
Abstract

Method of forming dental articles by using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders comprised of nanoparticulate crystallites are used to manufacture dental articles. The ceramic powders may include sintering agents, binders and other similar additives to aid in the processing of the ceramic powder into a dental article. The ceramic powders may be processed into dental articles using various methods including, but not limited to, injection molding, gel-casting, slip casting, or electroforming, hand, cad/camming and other various rapid prototyping methods. The ceramic powder may be formed into a suspension, pellet, feedstock material or a pre-sintered blank prior to forming into the dental article.


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