公开(公告)号：US20220183804A1

公开(公告)日：2022-06-16

申请号：US17549388

申请日：2021-12-13

Applicant: DENTSPLY SIRONA INC.

Inventor： Stefan FECHER ,  Lothar VÖLKL ,  Daniel AMMON

IPC: A61C13/00 ,  C04B35/48

Abstract: The present invention is related to a pink colored pre-sintered or fully-sintered blank for use for the production of a dental restoration, such as a denture base of a full or a partial denture, a partial denture, or an implant supported denture, consisting of a ceramic material which comprises zirconium dioxide doped with yttrium oxide (Y2O3), calcium oxide (CaO), magnesium oxide (MgO) and/or cerium oxide (CeO2), wherein the pink colored blank comprises 2 to 25 wt %, preferably 4 to 17 wt %, and more preferably 5 to 12 wt %, erbium oxide.

公开(公告)号：US20220184847A1

公开(公告)日：2022-06-16

申请号：US17549481

申请日：2021-12-13

Applicant: DENTSPLY SIRONA INC.

Inventor： Stefan FECHER ,  Lothar VÖLKL ,  Daniel AMMON

IPC: B28B1/16 ,  B28B11/24 ,  C04B35/48 ,  C04B35/057 ,  C04B35/04 ,  C04B35/50 ,  C04B35/645

Abstract: The present invention is related to a method for producing a ceramic multilayer blank comprising at least a first layer of a first ceramic material and at least a second layer of a second ceramic material, wherein the first layer and the second layer are made of ceramic materials of different compositions, which are filled in pourable condition layer-by-layer into a mold and thereafter they are pressed and then sintered, wherein the first layer is a pink colored layer, wherein the first ceramic material comprises 2 to 25 wt % erbium oxide.