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公开(公告)号：US20190382304A1
公开(公告)日：2019-12-19
申请号：US16527122
申请日：2019-07-31
申请人： DENTSPLY SIRONA Inc.
摘要： The invention relates to a lithium silicate glass ceramic, which contains at least lithium disilicate as a crystal phase, and lithium aluminum silicate as further crystal phase. The lithium silicate glass ceramic in its initial composition contains Al2O3 at 1.5 to 3.5 percent by weight, and K2O at 0.6 to 1.8 percent by weight.
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公开(公告)号：US20190099244A1
公开(公告)日：2019-04-04
申请号：US15786030
申请日：2017-10-17
申请人： DENTSPLY SIRONA Inc.
发明人： Markus VOLLMANN , Lothar VOLKL , Stefan FECHER , Carsten WIESNER
IPC分类号： A61C13/00 , B29C43/14 , A61C5/77 , A61C13/083 , A61K6/02
摘要： The invention relates to a method for the production of a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a mold and wherein the materials are pressed and after pressing are sintered. Thereby, a layer of the first ceramic material is filled into the mold, a first open cavity is formed in the layer, the second ceramic material is filled into the first open cavity and the materials are pressed together and are then heat-treated. Both the first ceramic material and the second ceramic material contain, or consists of, lithium silicate glass ceramic.
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公开(公告)号：US20180099900A1
公开(公告)日：2018-04-12
申请号：US15717565
申请日：2017-09-27
申请人： DENTSPLY SIRONA Inc.
CPC分类号： C03C10/0027 , A61C13/0022 , C03B32/02 , C03C3/097 , C03C4/0021 , C03C2204/00
摘要： The invention relates to a lithium silicate glass ceramic, which contains at least lithium disilicate as a crystal phase, and lithium aluminum silicate as further crystal phase. The lithium silicate glass ceramic in its initial composition contains Al2O3 at 1.5 to 3.5 percent by weight, and K2O at 0.6 to 1.8 percent by weight.
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公开(公告)号：US20240041574A1
公开(公告)日：2024-02-08
申请号：US18382340
申请日：2023-10-20
申请人： DENTSPLY SIRONA Inc.
发明人： Markus VOLLMANN , Lothar VOLKL , Stefan FECHER , Carsten WIESNER
IPC分类号： A61C13/00 , A61C13/083 , A61C13/09 , A61C5/70 , A61C13/08 , A61K6/818 , A61K6/822 , A61K6/824 , A61K6/833 , A61C5/77 , B29C43/14
CPC分类号： A61C13/0022 , A61C13/083 , A61C13/09 , A61C5/70 , A61C13/082 , A61K6/818 , A61K6/822 , A61K6/824 , A61K6/833 , A61C5/77 , A61C13/0006 , B29C43/146 , B33Y80/00
摘要： The invention relates to a method for the production of a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a mold and wherein the materials are pressed and after pressing are sintered. Thereby, a layer of the first ceramic material is filled into the mold, a first open cavity is formed in the layer, the second ceramic material is filled into the first open cavity and the materials are pressed together and are then heat-treated. Both the first ceramic material and the second ceramic material contain, or consists of, lithium silicate glass ceramic.
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公开(公告)号：US20180104031A1
公开(公告)日：2018-04-19
申请号：US15786631
申请日：2017-10-18
申请人： DENTSPLY SIRONA Inc.
发明人： Markus VOLLMANN , Lothar VOLKL , Stefan FECHER , Carsten WIESNER
摘要： 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.
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