- 专利标题： Method for producing a blank, blank and a dental restoration
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申请号： US16595556申请日： 2019-10-08
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公开(公告)号： US11464608B2公开(公告)日： 2022-10-11
- 发明人: Lothar Volkl , Martin Kutzner , Tanja Oefner , Stefan Fecher
- 申请人： DENTSPLY SIRONA INC.
- 申请人地址： US PA York
- 专利权人： DENTSPLY SIRONA INC.
- 当前专利权人： DENTSPLY SIRONA INC.
- 当前专利权人地址： US PA York
- 代理机构： Dentsply Sirona Inc.
- 优先权： DE102015122861.0 20151228
- 主分类号： A61C13/00
- IPC分类号： A61C13/00 ; A61C13/09 ; A61C5/77 ; A61C5/73 ; C04B35/486 ; B32B18/00 ; A61C13/083 ; A61C8/00 ; A61C13/08 ; B28B3/02 ; C04B35/48 ; C04B37/00
摘要：
The invention relates to a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a die and wherein the materials are pressed and after pressing are sintered. A layer of the first ceramic material is thereby filled into the die and a first cavity formed in the layer, the second ceramic material is then filled into the first open cavity and the materials pressed together and then heat-treated.
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