公开(公告)号：US20170181818A1

公开(公告)日：2017-06-29

申请号：US15388040

申请日：2016-12-22

Applicant: DENTSPLY SIRONA Inc.

Inventor： Lothar VOLKL ,  Martin KUTZNER ,  Heiner HORHOLD ,  Stefan FECHER

IPC: A61C13/00 ,  B28B11/24 ,  A61C13/09 ,  C04B35/645 ,  C04B37/00 ,  A61C13/08 ,  B28B1/16 ,  C04B35/488

CPC classification number: A61C13/0022 ,  A61C13/081 ,  A61C13/082 ,  A61C13/083 ,  A61C13/09 ,  B28B1/16 ,  B28B11/243 ,  C04B35/4885 ,  C04B35/645 ,  C04B37/005 ,  C04B2235/3218 ,  C04B2235/3225 ,  C04B2235/3246 ,  C04B2235/9653 ,  C04B2235/9661 ,  C04B2237/068 ,  C04B2237/348 ,  C04B2237/64

Abstract: The invention relates to a method for the preparation of a blank from a ceramic material, wherein at least two layers of ceramic material of different compositions are filled into a die 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.