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.

公开(公告)号：US11826949B2

公开(公告)日：2023-11-28

申请号：US16328448

申请日：2017-11-14

申请人： Desktop Metal, Inc.

发明人： Michael Andrew Gibson ,  Jonah Samuel Myerberg ,  Ricardo Fulop ,  Michael J. Tarkanian ,  Yet-Ming Chiang ,  Jay Tobia ,  Olivia Molnar Lam

IPC分类号： B29C64/124 ,  B29C64/245 ,  B29C64/165 ,  B33Y70/10 ,  C04B35/486 ,  C04B35/626 ,  C04B35/632 ,  C04B35/638 ,  G03F7/00 ,  G03F7/004 ,  A61K6/807 ,  A61K6/818 ,  A61K6/822 ,  A61K6/833 ,  C04B35/01 ,  C04B35/634 ,  B22F1/10 ,  B22F10/12 ,  B22F10/50 ,  A61L27/46 ,  B33Y50/02 ,  B29C64/135 ,  B22F7/04 ,  B28B1/00 ,  B33Y10/00 ,  B22F3/26 ,  B22F7/08 ,  B33Y80/00 ,  B82Y30/00 ,  B82Y40/00 ,  C22C9/06 ,  C22C19/03 ,  B22F12/90 ,  B22F10/64 ,  B22F1/102 ,  G03F7/027 ,  B22F3/10 ,  B29K509/02

CPC分类号： B29C64/124 ,  A61K6/807 ,  A61K6/818 ,  A61K6/822 ,  A61K6/833 ,  A61L27/46 ,  B22F1/10 ,  B22F3/26 ,  B22F7/04 ,  B22F7/08 ,  B22F10/12 ,  B22F10/50 ,  B28B1/001 ,  B29C64/135 ,  B29C64/165 ,  B29C64/245 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/10 ,  C04B35/013 ,  C04B35/486 ,  C04B35/6263 ,  C04B35/6264 ,  C04B35/632 ,  C04B35/634 ,  C04B35/638 ,  C04B35/63488 ,  G03F7/0037 ,  G03F7/0047 ,  G03F7/70416 ,  B22F1/102 ,  B22F3/1021 ,  B22F10/64 ,  B22F12/90 ,  B22F2007/042 ,  B22F2998/10 ,  B29K2509/02 ,  B33Y80/00 ,  B82Y30/00 ,  B82Y40/00 ,  C22C9/06 ,  C22C19/03 ,  G03F7/027 ,  B22F2998/10 ,  B22F10/12 ,  B22F3/1021 ,  B22F3/02

摘要： Systems, methods, components, and materials are disclosed for stereolithographic fabrication of three-dimensional, dense objects. A resin including at least one component of a binder system and dispersed particles can be exposed to an activation light source. The activation light source can cure the at least one component of the binder system to form a green object, which can include the at least one component of the binder system and the particles. A dense object can be formed from the green object by removing the at least one component of the binder system in an extraction process and thermally processing particles to coalesce into the dense object.

公开(公告)号：US20240173213A1

公开(公告)日：2024-05-30

申请号：US18431483

申请日：2024-02-02

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

发明人： Jae Won Kim ,  Akash

IPC分类号： A61K6/78 ,  A61K6/818 ,  A61K6/822 ,  B05D1/02 ,  B05D1/28 ,  B05D3/02 ,  C04B41/00 ,  C04B41/50 ,  C04B41/51 ,  C04B41/52 ,  C04B41/88 ,  C04B41/89 ,  C04B111/00 ,  C04B111/80

CPC分类号： A61K6/78 ,  A61K6/818 ,  A61K6/822 ,  B05D1/02 ,  B05D1/28 ,  B05D3/0272 ,  C04B41/009 ,  C04B41/5012 ,  C04B41/515 ,  C04B41/52 ,  C04B41/88 ,  C04B41/89 ,  C04B2111/00836 ,  C04B2111/80

摘要： A method for enhancing optical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. The porous or pre-sintered stage of a ceramic body is treated with two different yttrium-containing compositions and sintered, resulting in sintered ceramic bodies having enhanced optical properties. The enhanced optical properties may be substantially permanent, remaining for the useful life of the sintered ceramic body.

公开(公告)号：US11833003B2

公开(公告)日：2023-12-05

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 ,  A61C13/083 ,  A61C13/09 ,  A61C5/70 ,  A61C13/08 ,  A61K6/818 ,  A61K6/822 ,  A61K6/824 ,  A61K6/833 ,  A61C5/77 ,  B29C43/14 ,  B29C43/00 ,  B29C43/20 ,  B33Y80/00 ,  A61C9/00

CPC分类号： A61C13/0022 ,  A61C5/70 ,  A61C5/77 ,  A61C13/0006 ,  A61C13/082 ,  A61C13/083 ,  A61C13/09 ,  A61K6/818 ,  A61K6/822 ,  A61K6/824 ,  A61K6/833 ,  B29C43/146 ,  A61C9/0046 ,  B29C43/203 ,  B29C2043/147 ,  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.

公开(公告)号：US20230338123A1

公开(公告)日：2023-10-26

申请号：US18029975

申请日：2021-09-23

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Michael Jahns ,  Hans R. Schnagl ,  Gallus Schechner

IPC分类号： A61C13/00 ,  A61K6/818 ,  A61K6/822 ,  A61K6/15 ,  A61K6/82

CPC分类号： A61C13/0022 ,  A61K6/818 ,  A61K6/822 ,  A61K6/15 ,  A61K6/82

摘要： The invention relates to a set of porous zirconia dental mill blanks comprising at least two differently colored porous zirconia dental mill blanks, the porous zirconia dental mill blanks comprising zirconia, yttria, coloring ions, and optionally alumina, comprising multiple layers with different yttria content, having a bottom layer and a top layer, the content of yttria and coloring ions in mol % changing in opposite direction to each other from the bottom layer to the top layer, and the content of yttria and coloring ions in mol % being adjusted to provide an essentially constant ratio of the sum of yttria and coloring ions in mol % between the top layer and the bottom layer for the at least two differently colored zirconia dental mill blanks. The invention also relates to a process of producing such a set.

公开(公告)号：US12121599B2

公开(公告)日：2024-10-22

申请号：US17273048

申请日：2019-08-30

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Michael Jahns ,  Jacqueline C. Rolf ,  Martin Goetzinger ,  Holger Hauptmann

IPC分类号： A61K6/822 ,  A61K6/20 ,  A61K6/833 ,  A61K6/836 ,  C03C1/04 ,  C03C4/00 ,  C03C4/12 ,  C03C8/20 ,  C03C10/00 ,  C04B41/86

CPC分类号： A61K6/822 ,  A61K6/20 ,  A61K6/833 ,  A61K6/836 ,  C03C1/04 ,  C03C4/0021 ,  C03C4/12 ,  C03C8/20 ,  C03C10/0009 ,  C03C2204/00 ,  C03C2205/06 ,  C04B41/86

摘要： The invention relates to a glazing composition for a porous dental zirconia article, the glazing composition comprising liquid, glass particles, fluorescing component(s) comprising europium, optionally hydrophilic silica nano-particles, and optionally hydrophobic silica nano-particles, wherein the fluorescing component(s) can be contained in the glass particles or as separate component. The invention also relates to a process for sintering a porous dental zirconia article with a glazing composition on its surface.

公开(公告)号：US20240207142A1

公开(公告)日：2024-06-27

申请号：US17911602

申请日：2022-07-08

申请人： AIDITE (QINHUANGDAO) TECHNOLOGY CO., LTD.

发明人： Jiaxin ZHANG ,  Quanyi NIE ,  Jingjing ZHENG ,  Zhe WANG ,  Linlin WEI

IPC分类号： A61K6/822 ,  A61K6/40 ,  C04B35/14

CPC分类号： A61K6/822 ,  A61K6/40 ,  C04B35/14

摘要： The present disclosure provides a ceramic material for improving surface adhesion of dental zirconia, a restorative material and a preparation method and a adhesion method thereof. The ceramic material includes SiO2, B2O3, GeO2, Al2O3, Li2O, Nb2O5, Na2O, ZrO2, P2O5, and a rare earth oxide. In the present disclosure, the ceramic material includes GeO2.

公开(公告)号：US20240051868A1

公开(公告)日：2024-02-15

申请号：US18383287

申请日：2023-10-24

申请人： CORNING INCORPORATED

发明人： George Halsey Beall ,  Qiang Fu ,  Charlene Marie Smith

IPC分类号： C03C10/00 ,  C03C4/00 ,  C03B32/02 ,  C03C3/097 ,  C03C4/16 ,  C03C14/00 ,  A61K6/818 ,  A61K6/822 ,  A61K6/824 ,  A61K6/827 ,  A61K6/833 ,  A61K6/836

CPC分类号： C03C10/0027 ,  C03C4/0021 ,  C03B32/02 ,  C03C10/0009 ,  C03C3/097 ,  C03C4/16 ,  C03C14/004 ,  A61K6/818 ,  A61K6/822 ,  A61K6/824 ,  A61K6/827 ,  A61K6/833 ,  A61K6/836 ,  C03C2214/04 ,  C03C2214/20 ,  C03C2214/30

摘要： ZrO2-toughened glass ceramics having high molar fractions of tetragonal ZrO2 and fracture toughness value of greater than 1.8 MPa·m1/2. The glass ceramic may also include also contain other secondary phases, including lithium silicates, that may be beneficial for toughening or for strengthening through an ion exchange process. Additional second phases may also decrease the coefficient of thermal expansion of the glass ceramic. A method of making such glass ceramics is also provided.

公开(公告)号：US20240000670A1

公开(公告)日：2024-01-04

申请号：US18252802

申请日：2021-10-22

申请人： TOKUYAMA DENTAL CORPORATION

发明人： Hiroshi Hara ,  Akari Hashimoto ,  Kei Nakashima

IPC分类号： A61K6/818 ,  A61C13/00 ,  A61C13/083 ,  A61K6/822

CPC分类号： A61K6/818 ,  A61C13/0006 ,  A61C13/083 ,  A61K6/822

摘要： Provided are a zirconia dental mill blank and a manufacturing method therefor, said mill bank having a to-be-cut part composed of a composite material, which includes fine particles of an inorganic oxide (excluding zirconium oxide, an inorganic oxide functioning as a stabilizer, and aluminum oxide) and a matrix composed of a temporarily sintered body of a crystalline zirconium oxide powder containing a stabilizer and an aluminum oxide additive, wherein the temporarily sintered body is a microporous temporarily sintered body having a relative density of 45-65% and having pores opened outward, and the fine particles of the inorganic oxide are held in the pores of the microporous temporarily sintered body. Moreover, provided are a method for manufacturing a dental zirconia ceramic prosthesis, and a method for manufacturing an article composed of a zirconia composite ceramic.

公开(公告)号：US20240225790A1

公开(公告)日：2024-07-11

申请号：US18437453

申请日：2024-02-09

申请人： Abdelmadjid Djemai ,  Jean-Jacques Fouchet

发明人： Abdelmadjid Djemai ,  Jean-Jacques Fouchet

IPC分类号： A61C8/00 ,  A61K6/818 ,  A61K6/822 ,  A61K6/84

CPC分类号： A61C8/0033 ,  A61C8/0012 ,  A61C8/0022 ,  A61C8/0074 ,  A61C8/0089 ,  A61K6/818 ,  A61K6/822 ,  A61K6/84 ,  A61C2008/0046

摘要： A dental implant assembly comprising an elongated inner body substantially resembling a tooth root (1-1) and an outer member for securing to a bone of a patient (1-2) having a heterogeneous porous structure adapted to provide bone growth, the inner body and the outer fixation member being formed in one piece, the fastening element being movable between a stored passive position and an extended active position (1-2).