Patent · US Active

Method for the production of a dental restoration

US10531938B2 · kind B2 · utility

1Cited by

0References

22Claims

0Family size

Assignee

Dentsply Sirona Inc. · US

Inventors

Markus Vollmann · Gelnhausen, DE
Lothar Volkl · Goldbach, DE
Stefan Fecher · Goldbach, DE
Carsten Wiesner · Rockenberg, DE

Key dates

Filing date	Oct 18, 2017
Grant date	Jan 14, 2020
Priority date	—
Expiry date	Dec 23, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B41/51
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to a method for the production of a restoration from a blank consisting of, or containing, a lithium silicate glass ceramic, wherein at least two layers of ceramic material of different compositions are filled into a mold layer-by-layer and after filling of the layers they are then pressed and sintered, wherein after filling of a first layer this is structured on its surface in such a way that the first layer, viewed across its surface, differs in its height from region to region, and then a layer with a composition that differs from the first layer is filled as a second layer into the mold. After sintering the dental restoration is produced from the blank by mechanical working.

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