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公开(公告)号:US20190328622A1
公开(公告)日:2019-10-31
申请号:US16322135
申请日:2017-08-09
发明人: Michael Bäurer
IPC分类号: A61K6/02 , A61C13/00 , A61C13/083 , C04B35/486 , C04B35/645
摘要: The invention relates to a blank (5) for producing a tooth replacement part (1) using a CAD/CAM device (10, 7), comprising a block (25) of a sintered material (26). Said block (25) of sintered material (26) has already been presintered in a sintering furnace (2) at an initial sintering temperature (33) between 1000° C. and 1250° C.
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公开(公告)号:US20190314124A1
公开(公告)日:2019-10-17
申请号:US16456020
申请日:2019-06-28
申请人: RENISHAW PLC
发明人: David BEEBY
IPC分类号: A61C13/00 , A61C13/083 , B23K26/342
摘要: A method of manufacturing an article comprising: (a) performing an additive manufacturing process to firm an article in an initial state, the article comprising mounting features and being supported during the additive manufacturing process by support structures; and (h) performing a second manufacturing process to transform the article into a second state, which second manufacturing process is a subtractive process comprising: (i) mounting, via the mounting features formed during the additive manufacturing process, the article in a holding device of a machine for operating on the article, with the support structures or at least remnants thereof remaining on the article, and (ii) with the article so mounted in the holding device, processing at least one feature on a surface of the article on which the support structures were provided to remove material on the at least one feature provided by the support structures.
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公开(公告)号:US10426583B2
公开(公告)日:2019-10-01
申请号:US15906939
申请日:2018-02-27
申请人: Yunoh Jung , Daniel Yonil Jung
发明人: Yunoh Jung , Daniel Yonil Jung
IPC分类号: A61C13/00 , B32B18/00 , C04B35/486 , A61C13/08 , C04B35/48 , A61C13/083
摘要: A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition including containing between 6.0 wt % or 7.5 wt % to 20 wt % of yttria (Y2O3). The green body has multiple different layers having a different chemical composition between adjacent layers. The green body has a pre-sintered translucency that is substantially the same across the multiple different layers, and subsequently has a post-sintered translucency and a post-sintered color intensity/chroma with an inverse relationship with the post-sintered translucency increasing in one direction across the multiple different layers and the post-sintered color intensity/chromes decreasing in the same direction across the multiple different layers. The green body can have a color component and a diameter of at least 90 mm and thickness of 10-25 mm.
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公开(公告)号:US10405952B2
公开(公告)日:2019-09-10
申请号:US14381302
申请日:2013-02-28
申请人: Ivoclar Vivadent AG
IPC分类号: A61C13/00 , A61C8/00 , A61C13/08 , A61C13/083 , A61C13/09
摘要: A blank which is provided for producing dental shaped parts such as crowns, bridges, veneers, abutments and the like, already has at least one preform of a dental shaped part, which is available for producing this shaped part.In particular, the preforms in the blank are prepared by machining of the blank, preferably by cutting, sawing, grinding, drilling and/or milling. The preforms are in particular preforms for single crowns.
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公开(公告)号:US10376343B2
公开(公告)日:2019-08-13
申请号:US14784149
申请日:2014-04-08
申请人: Ivoclar Vivadent AG
发明人: Volker Rheinberger , Markus Rampf , Marc Dittmer , Christian Ritzberger , Wolfram Höland , Marcel Schweiger
IPC分类号: A61L27/10 , C03C10/00 , A61K6/00 , A61K6/02 , A61K6/027 , A61L27/30 , C03C8/08 , C03C4/00 , A61C13/083 , C03C3/097 , C03C3/112
摘要: The invention relates to the use of lithium silicate glass ceramics and glasses with rubidium oxide content for coating an oxide ceramic, a metal or an alloy.
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56.
公开(公告)号:US20190231650A1
公开(公告)日:2019-08-01
申请号:US16329637
申请日:2017-08-03
发明人: Aimin YANG , Xuekui MO , Xibin SONG
IPC分类号: A61K6/02 , A61C13/083 , A61C13/00 , A61K6/00 , C04B35/488 , C04B35/626 , C04B35/634 , C04B35/64
CPC分类号: A61K6/024 , A61C13/0022 , A61C13/083 , A61K6/0008 , A61K6/02 , C04B35/48 , C04B35/488 , C04B35/622 , C04B35/626 , C04B35/6261 , C04B35/6264 , C04B35/62695 , C04B35/63416 , C04B35/63488 , C04B35/64 , C04B2235/3246 , C04B2235/5409 , C04B2235/5436 , C04B2235/604 , C04B2235/608 , C04B2235/6567 , C04B2235/9653
摘要: Provided is a light-transmissive zirconia sintered body, obtained by preparing a green body from a powder for the light-transmissive zirconia sintered body by means of isostatic pressing, and sintering the green body at a high temperature and normal pressure after degreasing and biscuit firing. The light-transmissive zirconia sintered body is prepared by dispersing zirconia powder in water, adding an appropriate amount of a dispersant and a binder, mixing the mixture to form a slurry, and spray-granulating same, wherein the molar percentage of yttrium oxide in the zirconia powder is 3-5%. The light-transmissive zirconia sintered body can be used for preparing a fixed dental prosthesis.
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公开(公告)号:US20190231494A1
公开(公告)日:2019-08-01
申请号:US16095433
申请日:2017-10-21
发明人: Rainer K. DITTMANN , Hans R. SCHNAGL , Grit KINDLER , Björn THEELKE , Michael SOGL , Michaela URBAN
IPC分类号: A61C13/00 , A61C13/083
CPC分类号: A61C13/0022 , A61C13/082 , A61C13/083 , C04B35/48 , C04B2235/9661
摘要: The invention relates to a porous multi-layered coloured zirconia dental mill blank comprising a bottom layer B having the composition COMP-B which comprises ceramic components CER-COMP-B, colouring components COL-COMP-B and stabilizing components STAB-COMP-B, a top layer E having the composition COMP-E which comprises ceramic components CER-COMP-E, colouring components COL-COMP-E stabilizing components STAB-COMP-E, at least one intermediate layer Ex having the composition COMP-E of top layer E, at least one intermediate layer Bx having the composition COMP-B of bottom layer B, x being an integer and indicating the number of intermediate layers, wherein the layers with compositions COMP-B and COMP-E are arranged in alternating order, and wherein the thickness of the individual layers B, Bx is decreasing from bottom to top and the thickness of the individual layers E, Ex is decreasing from top to bottom. The dental mill blank can be used for producing dental articles.
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公开(公告)号:US10322973B2
公开(公告)日:2019-06-18
申请号:US14469828
申请日:2014-08-27
发明人: Norbert Thiel , Michael Dorn , Joachim Bibus , Vilma Geske , Michael Tholey , Enno Bojemueller , Birgit Huber
IPC分类号: C04B35/16 , A61C13/00 , A61C13/083 , A61C13/20 , C04B38/00 , C04B35/64 , C04B111/00
摘要: A porous, silicate, ceramic body, optionally with different colors, with a first density, can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, is 25 to 180 MPa.
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公开(公告)号:US10292795B2
公开(公告)日:2019-05-21
申请号:US14429205
申请日:2013-09-12
发明人: Andreas Herrmann , Michael Jahns
IPC分类号: A61C13/08 , C04B41/85 , C04B41/00 , C04B41/50 , A61K6/00 , A61K6/02 , A61C8/00 , A61C13/083 , C09D133/06 , C04B111/00 , C04B111/82
摘要: Kits of parts comprising a coloring solution, a porous zirconia article, optionally application equipment, the solution comprising cation(s) of coloring agent(s) in an amount above about 0.05 mol/l, solvent(s) for the ion(s), optionally complexing agent(s), optionally thickening agent(s), optionally organic marker substance(s), optionally additive(s), the porous zirconia article showing a N2 adsorption and desorption of isotherm type IV according to IUPAC classification. Methods for coloring a zirconia article comprising the steps of providing a porous zirconia article and a coloring solution, applying the coloring solution to at least a part of the outer surface of the porous zirconia article, optionally drying the porous zirconia article of the preceding step, sintering the porous zirconia article to obtain a colored zirconia ceramic article.
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60.
公开(公告)号:US10280120B2
公开(公告)日:2019-05-07
申请号:US15596750
申请日:2017-05-16
发明人: Yoshihisa Ito , Atsushi Matsumoto , Tomohiro Emoto
IPC分类号: C04B35/48 , C04B35/486 , A61C13/083 , A61K6/02 , A61C5/73 , C04B35/64 , C04B41/00 , C04B41/50 , C04B41/87 , C09C1/00 , A61C13/00 , A61K6/00 , C04B35/488 , C04B35/626 , C04B35/645 , C04B111/00 , C04B111/82
摘要: Provided is a zirconia sintered body that suppresses discoloration due to porcelain. The zirconia sintered body comprises at least one of a coloring agent A: erbium oxide and a coloring agent B: nickel oxide, and a composite oxide of zirconium and vanadium.
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