公开(公告)号：US11370702B2

公开(公告)日：2022-06-28

申请号：US15160432

申请日：2016-05-20

申请人： DENTSPLY SIRONA Inc.

发明人： Stefan Fecher ,  Lothar Völkl

IPC分类号： C03B32/00 ,  C03C21/00 ,  C03C4/00 ,  C03C3/097 ,  A61K6/804 ,  A61K6/818 ,  A61K6/822 ,  A61K6/824 ,  A61K6/833 ,  A61K6/853 ,  C03B25/00 ,  C03C10/00

摘要： The invention relates to a method to derive a medical form body of lithium silicate glass ceramic. To increase its strength it is proposed that in the form body comprising lithium silicate glass or containing lithium silicate glass the lithium ions are replaced by alkali ions of greater diameter to generate a surface compressive stress. To this end the form body is covered with a melt containing an alkali metal for which an aliquoted quantity of salt containing the alkali metal is used.

公开(公告)号：US20200306019A1

公开(公告)日：2020-10-01

申请号：US16759651

申请日：2018-10-26

申请人： UNIVERSIDADE DO MINHO

发明人： FILIPE SAMUEL CORREIA PEREIRA SILVA ,  PAULO FILIPE SALGADO PINTO ,  ÓSCAR SAMUEL NOVAIS CARVALHO

IPC分类号： A61C13/00 ,  A61C13/083 ,  A61C13/08 ,  A61C5/77 ,  A61C5/20 ,  A61C8/00 ,  C04B35/64 ,  C04B41/00 ,  A61K6/818 ,  A61K6/802 ,  A61K6/813 ,  A61K6/804 ,  B28B11/12

摘要： The present disclosure relates to a ceramic structure for dental application, preferably dental restoration, process for obtaining it and its uses. The process now disclosed comprises computer-controlled machining (CNC), particularly by milling, to obtain a ceramic structure, for example dental covers, which reach thicknesses between 0.05 and 0.4 millimeters.

公开(公告)号：US10968132B2

公开(公告)日：2021-04-06

申请号：US16382935

申请日：2019-04-12

申请人： James R. Glidewell Dental Ceramics, Inc.

发明人： Rodolfo Castillo

IPC分类号： C03B19/02 ,  A61L27/10 ,  C03C3/097 ,  C03C4/00 ,  C03C10/00 ,  A61K6/78 ,  A61K6/82 ,  A61K6/804 ,  A61K6/807 ,  A61K6/813 ,  A61K6/818 ,  A61K6/833 ,  C03B1/02 ,  C03B32/02 ,  C03C3/118

摘要： The present invention relates to a method of fabricating an improved lithium silicate glass ceramic and to that material for the manufacture of blocks for dental appliances using a CAD/CAM process and hot pressing system. The lithium silicate material has a chemical composition that is different from those reported in the prior art with 1 to 10% of germanium dioxide in final composition. The softening points are close to the crystallization final temperature of 800° C. indicating that the samples will support the temperature process without shape deformation.

公开(公告)号：US20200339470A1

公开(公告)日：2020-10-29

申请号：US16927522

申请日：2020-07-13

申请人： DENTSPLY SIRONA Inc.

发明人： Michael PRÖPSTER ,  Markus VOLLMANN

IPC分类号： C03C21/00 ,  C03C4/00 ,  C03C3/097 ,  A61K6/804 ,  A61K6/818 ,  A61K6/822 ,  A61K6/833 ,  A61K6/853 ,  C03B25/00 ,  C03C10/00 ,  C03C17/22

摘要： The invention relates to a medical form body of lithium silicate glass ceramic. To increase its strength it is proposed that a surface compressive stress is created in a form body of lithium silicate glass, or containing lithium silicate glass, through the replacement of lithium ions by alkali metal ions of greater diameter. For this purpose the form body is covered with a paste that contains alkali metal.

公开(公告)号：US11040909B2

公开(公告)日：2021-06-22

申请号：US15160529

申请日：2016-05-20

申请人： DENTSPLY SIRONA Inc.

发明人： Lothar Völkl ,  Stefan Fecher

IPC分类号： C03B25/00 ,  C03C17/22 ,  C03C21/00 ,  C03C4/00 ,  C03C3/097 ,  A61K6/20 ,  A61K6/804 ,  A61K6/818 ,  A61K6/822 ,  A61K6/833 ,  A61K6/853 ,  C03C10/00

摘要： The invention relates to a method to increase the strength of a form body of lithium silicate glass ceramic, which after it has a desired end geometry and after the application of a material which influences its surface to form a coating, is subject to a heat treatment. To create a surface compressive stress through the replacement of lithium ions by alkali ions of greater diameter at least that region not covered by the application layer is covered by a melt or paste consisting of or containing a salt of an alkali metal with ions of greater diameter and the form body is in contact with the melt or paste for a period of time t at a temperature T and the melt or paste is subsequently removed from the form body.

公开(公告)号：US10981823B2

公开(公告)日：2021-04-20

申请号：US16284563

申请日：2019-02-25

申请人： Ivoclar Vivadent AG

发明人： Elke Signer-Apel ,  Wolfram Höland ,  Marcel Schweiger ,  Christian Ritzberger ,  Harald Bürke ,  Volker Rheinberger

IPC分类号： C03C10/00 ,  A61C13/00 ,  A61C5/70 ,  A61C5/77 ,  C03C3/097 ,  C03B32/02 ,  C03C4/00 ,  A61K6/78 ,  A61K6/804 ,  A61K6/807 ,  A61K6/818 ,  A61K6/833 ,  A61C8/00 ,  A61C13/08 ,  A61C13/083 ,  C01B33/32

摘要： Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

公开(公告)号：US12006247B2

公开(公告)日：2024-06-11

申请号：US17233898

申请日：2021-04-19

申请人： Ivoclar Vivadent AG

发明人： Elke Signer-Apel ,  Wolfram Höland ,  Marcel Schweiger ,  Christian Ritzberger ,  Harald Bürke ,  Volker Rheinberger

IPC分类号： C03C10/00 ,  A61C5/70 ,  A61C5/77 ,  A61C8/00 ,  A61C13/00 ,  A61C13/08 ,  A61C13/083 ,  A61K6/78 ,  A61K6/804 ,  A61K6/807 ,  A61K6/818 ,  A61K6/833 ,  C01B33/32 ,  C03B32/02 ,  C03C3/097 ,  C03C4/00

CPC分类号： C03C10/0027 ,  A61C5/70 ,  A61C5/77 ,  A61C8/0001 ,  A61C8/0012 ,  A61C8/0048 ,  A61C13/0004 ,  A61C13/0006 ,  A61C13/0022 ,  A61C13/082 ,  A61C13/083 ,  A61K6/78 ,  A61K6/804 ,  A61K6/807 ,  A61K6/818 ,  A61K6/833 ,  C01B33/32 ,  C03B32/02 ,  C03C3/097 ,  C03C4/0021 ,  C03C10/0045 ,  C03C10/0054 ,  Y10T83/04 ,  Y10T409/303752

摘要： Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

公开(公告)号：US20220281770A1

公开(公告)日：2022-09-08

申请号：US17750839

申请日：2022-05-23

申请人： DENTSPLY SIRONA Inc.

发明人： Stefan FECHER ,  Lothar VÖLKL

IPC分类号： C03C21/00 ,  C03C4/00 ,  C03C3/097 ,  A61K6/804 ,  A61K6/818 ,  A61K6/822 ,  A61K6/824 ,  A61K6/833 ,  A61K6/853 ,  C03B25/00 ,  C03C10/00

摘要： The invention relates to a medical form body of lithium silicate glass ceramic. To increase its strength it is proposed that in the form body comprising lithium silicate glass or containing lithium silicate glass the lithium ions are replaced by alkali ions of greater diameter to generate a surface compressive stress. To this end the form body is covered with a melt containing an alkali metal for which an aliquoted quantity of salt containing the alkali metal is used.

公开(公告)号：US20210238082A1

公开(公告)日：2021-08-05

申请号：US17233898

申请日：2021-04-19

申请人： Ivoclar Vivadent AG

发明人： Elke Signer-Apel ,  Wolfram Höland ,  Marcel Schweiger ,  Christian Ritzberger ,  Harald Bürke ,  Volker Rheinberger

IPC分类号： C03C10/00 ,  A61C13/00 ,  A61C5/70 ,  A61C5/77 ,  C03C3/097 ,  C03B32/02 ,  C03C4/00 ,  A61K6/78 ,  A61K6/804 ,  A61K6/807 ,  A61K6/818 ,  A61K6/833 ,  A61C8/00 ,  A61C13/08 ,  A61C13/083 ,  C01B33/32

摘要： Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

公开(公告)号：US10745319B2

公开(公告)日：2020-08-18

申请号：US15160678

申请日：2016-05-20

申请人： DENTSPLY SIRONA Inc.

发明人： Michael Pröpster ,  Markus Vollmann

IPC分类号： C03B32/00 ,  C03C21/00 ,  C03C4/00 ,  C03C3/097 ,  A61K6/804 ,  A61K6/818 ,  A61K6/822 ,  A61K6/833 ,  A61K6/853 ,  C03B25/00 ,  C03C10/00 ,  C03C17/22

摘要： The invention relates to a method to produce a medical form body of lithium silicate glass ceramic. To increase its strength it is proposed that a surface compressive stress is created in a form body of lithium silicate glass, or containing lithium silicate glass, through the replacement of lithium ions by alkali metal ions of greater diameter. For this purpose the form body is covered with a paste that contains alkali metal.