公开(公告)号：US10555795B2

公开(公告)日：2020-02-11

申请号：US15944387

申请日：2018-04-03

申请人： TOSOH CORPORATION

发明人： Hiroyuki Fujisaki ,  Kiyotaka Kawamura

IPC分类号： C04B35/486 ,  A61C13/08 ,  A61C13/083 ,  C04B35/488 ,  C04B35/64

摘要： A zirconia sintered body is provided having a color tone equivalent to the color tone guides of various natural teeth and having the same aesthetics as a natural front tooth. The present invention provides a colored translucent zirconia sintered body comprising zirconia containing greater than 4.0 mol % and not greater than 6.5 mol % of yttria, less than 0.25 mol % of erbia, less than 2,000 ppm of iron oxide in terms of Fe2O3, less than 0.01 wt. % of cobalt oxide in terms of CoO, and less than 0.1 wt. % of alumina; the zirconia sintered body having a relative density of not less than 99.90%, a total light transmittance of not less than 25% and less than 40% for light having a wavelength of 600 nm at a sample thickness of 1.0 mm, and a strength of not less than 500 MPa.

公开(公告)号：US10548696B2

公开(公告)日：2020-02-04

申请号：US15885900

申请日：2018-02-01

申请人： RENISHAW PLC

发明人： David Beeby ,  Mark Forman

IPC分类号： B22F3/105 ,  B22F3/24 ,  B33Y10/00 ,  B33Y80/00 ,  A61C13/00 ,  A61C5/77 ,  A61C13/08 ,  A61C13/271

摘要： A method of manufacturing an article, comprising taking an article formed in an initial state via an additive manufacturing process and performing a second manufacturing process to transform the article into a second state, which comprises mounting the article in a holding device, processing at least one first feature on the article, which comprises processing at least one set of mounting features on the article, re-mounting the article via the at least one set of mounting features, and then processing at least one second feature on the article.

公开(公告)号：US10548694B2

公开(公告)日：2020-02-04

申请号：US15517760

申请日：2015-10-09

申请人： DENTAL WINGS INC.

发明人： Michael Landry Rynerson ,  Pierre-Olivier Roy ,  Jean-Marc Perot ,  Robin Provost

IPC分类号： G06F19/00 ,  A61C9/00 ,  A61C5/77 ,  A61C5/20 ,  A61B1/24 ,  A61B6/14 ,  A61C8/00 ,  A61C13/00 ,  A61C13/08

摘要： A system and method for optimising the preparation of dental restorations is provided. The system comprises a dental restoration surface processing unit, a dental restoration assessment unit, a database comprising a treatment parameters database and a processing protocols database, a processor operationally coupled to said dental restoration surface processing unit and a protocol selector. The method treats a dental restoration surface using the system and according to one or more selected processing protocol.

公开(公告)号：US20200030064A1

公开(公告)日：2020-01-30

申请号：US16595556

申请日：2019-10-08

申请人： DENTSPLY SIRONA INC.

发明人： Lothar VOLKL ,  Martin KUTZNER ,  Tanja OEFNER ,  Stefan FECHER

IPC分类号： A61C13/00 ,  A61C13/09 ,  A61C5/77 ,  A61C5/73 ,  A61C8/00 ,  A61C13/08 ,  B28B3/02 ,  C04B35/48 ,  C04B37/00 ,  C04B35/486 ,  B32B18/00 ,  A61C13/083

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.

公开(公告)号：US20200015947A1

公开(公告)日：2020-01-16

申请号：US16512078

申请日：2019-07-15

申请人： Ivoclar Vivadent AG

发明人： Markus Geier ,  Frank Frenzel ,  Thomas Baaske ,  Roger Frei

IPC分类号： A61C13/08 ,  A61C13/00

摘要： A dental prosthesis is provided, manufactured from a monobloc or multibloc prosthesis blank (10), which is composed of a gum-colored material (14) and a tooth-colored material (12), which materials (12, 14) are bonded to each other by bonding, polymerization and/or one-piece manufacture. The boundary surface (16) between the materials is wave-shaped comprising alternating grooves (22) and ribs (24) in the course of the dental arch, and radial in an oral-vestibular direction in the region of the anterior teeth (33) to be created. The boundary surface (16), at least in the region of the molars (26)—again as viewed in the oral vestibular direction—has parallel grooves (22) and ribs (24) forming troughs and crests of the waveform, or grooves (22) and ribs (24) such that they extend in deviation from parallel by at most 10 degrees, in particular at most 5 degrees, at least in the region of the molars (26).

公开(公告)号：US10463457B2

公开(公告)日：2019-11-05

申请号：US15945529

申请日：2018-04-04

申请人： Yunoh Jung ,  Daniel Yonil Jung

发明人： Yunoh Jung ,  Daniel Yonil Jung

IPC分类号： B29B7/00 ,  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 comprising between 6.0 wt % to 20 wt % of yttria (Y2O3). The green body is subsequently sinterable, with regular sintering in air and with no post HIP processing, to product a translucent sintered body with a total light transmittance of at least 36% to light with a wavelength of 400 nm at a thickness of 0.6 mm.

公开(公告)号：US20190307537A1

公开(公告)日：2019-10-10

申请号：US16465863

申请日：2017-11-30

申请人： John FUNG

发明人： John FUNG

IPC分类号： A61C13/08 ,  A61C9/00 ,  A61C13/34 ,  A61C13/09 ,  B33Y50/00 ,  B33Y80/00

摘要： A method of forming a plurality of compression moulds for moulding prosthetic tooth elements is disclosed. A natural tooth surface or a model of the natural tooth surface is scanned to obtain scan data. Based on the scan data, a first compression mould is formed comprising a first mould surface, the first mould surface having a shape corresponding to a shape of a natural tooth surface increased in size by a first scale factor. Based on the scan data, a second compression mould is formed comprising a second mould surface, the second mould surface having a shape corresponding to the shape of the natural tooth surface increased in size by a second scale factor, the second scale factor being different from the first scale factor. Prosthetic tooth elements and dental prostheses formed using the method are also disclosed.

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.

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

发明人： Sascha Cramer Von Clausbruch

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.

公开(公告)号：US10350030B2

公开(公告)日：2019-07-16

申请号：US15376051

申请日：2016-12-12

申请人： Natural Dental Implants AG

发明人： Ruedger Rubbert ,  Ernst-Ulrich Berndt ,  Jakob Sebastian Marquard ,  Hauke Schmidt-Martens ,  Lea Ellermeier Nesbit

IPC分类号： A61C5/30 ,  A61C5/00 ,  A61C8/02 ,  A61C8/00 ,  A61C13/00 ,  A61C13/08 ,  A61K6/00 ,  A61L27/38 ,  A61C9/00 ,  G16H20/40

摘要： Methods of manufacturing dental prosthesis/implants each to replace a non-functional natural tooth positioned in a jawbone of a specific pre-identified patient are provided. An example method includes the steps of receiving imaging data such as x-ray image data and surface scan data of a dental anatomy and/or a physical impression of the dental anatomy of a specific preidentified patient. The steps can also include forming a three-dimensional virtual model of at least portions of a non-functional natural tooth positioned in the jawbone of the specific pre-identified patient based on the imaging and surface scan data, virtually designing a dental implant based upon the virtual model, exporting the data describing the designed dental implant to a manufacturing machine, and custom manufacturing the dental implant for the specific patient.