Patent · US Active

Multi-layered zirconia dental blank with reverse layers, process for its preparation and uses thereof

US11672632B2 · kind B2 · utility

0Cited by

46References

14Claims

0Family size

Assignee

pritidenta GmbH · DE

Inventors

Berthold Reusch · Munich, DE
David Figge · Bensheim, DE

Key dates

Filing date	Oct 5, 2020
Grant date	Jun 13, 2023
Priority date	—
Expiry date	Oct 5, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2237/704
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to a novel multi-layered zirconia dental blank comprising at least two reverse layers. Further, the invention relates to a process for the preparation of such a multi-layered zirconia dental blank. The invention also relates to the use of such a multi-layered zirconia dental blank for the production of a dental article. Preferred dental articles are artificial teeth, inlays, onlays, bridges, crowns, veneers, facings, crown frameworks, bridged frameworks, implants, abutments, copings or orthodontic appliances. Moreover, the invention relates to a process for producing a dental article out of such a multi-layered zirconia dental blank.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.