公开(公告)号：US10182892B2

公开(公告)日：2019-01-22

申请号：US14404038

申请日：2013-05-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Michael Jahns

IPC: A61C13/08 ,  A61C13/083 ,  A61C13/00 ,  A61C13/09 ,  B29C64/165

Abstract: A method of making a customized dental blank comprises the steps of providing individual tooth color information, forming an open-celled dental blank precursor, providing the open-celled dental blank precursor with color in accordance with the individual tooth color information, and compressing the dental blank precursor. The method helps maximizing the optical quality of dental restoration at minimized costs.

公开(公告)号：US20200206092A1

公开(公告)日：2020-07-02

申请号：US16622530

申请日：2018-06-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andreas Herrmann ,  Gioacchino Raia ,  Malte Korten ,  Oliver Kappler ,  Bernhard Hofmann ,  Adrian Eckert ,  Helmar Mayr ,  Reinhold Hecht ,  Gallus Schechner ,  Rainer Guggenberger

IPC: A61K6/887 ,  A61K6/17 ,  A61K6/62 ,  A61K6/65 ,  A61C5/73 ,  A61K6/76 ,  A61K6/77 ,  C08L33/08 ,  C08L33/10 ,  C08L75/06

Abstract: The invention relates to A curable composition for producing dental composite crowns, the composition comprising a resin matrix comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, polymerizable urethane(meth)acrylate(s), wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety are used in excess over the polymerizable urethane(meth)acrylate(s), a filler matrix comprising nanocluster(s), fumed silica in an amount below 8 wt. % with respect to the weight of the whole composition, an initiator system comprising photoinitiator(s), organic dye(s), the curable composition not comprising softener in an amount of more than 5 wt. % with respect to the weight of the whole composition, the curable composition having a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s−1. The invention also relates to a cured article obtained by radiation curing this curable composition by use of an additive-manufacturing method.

公开(公告)号：US20140377718A1

公开(公告)日：2014-12-25

申请号：US14377194

申请日：2012-12-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gallus Schechner ,  Christoph Thalacker ,  Karsten Dede ,  Michael Jahns

IPC: A61C5/10 ,  A61C13/20

CPC classification number: A61C13/20 ,  A61C5/77 ,  A61C13/0022 ,  Y10T29/49567

Abstract: The invention relates to a dental milling block (1) comprising a dental article (2) having an outer surface, the dental article having been produced based on personalized data, wherein the outer surface of the dental article is at least partially covered with a surrounding material. The invention further relates to a process of producing a dental milling block, the process comprising the steps of: •a) providing a personalized Data Set C containing geometry data of the dental article and colour data related to said geometry data, •b) generating a layer of hardenable material on a surface, •c) applying a colour agent to the layer of hardenable material of step b), wherein the colour agent is applied to at least some regions of those areas of the layer of hardenable material which are related to the geometry data of the dental article, •d) consolidating the result obtained in step c) thereby obtaining an at least partially hardened layer of material.

Abstract translation: 本发明涉及一种牙科研磨块（1），其包括具有外表面的牙科制品（2），所述牙科制品已经基于个性化数据生产，其中所述牙科用品的外表面至少部分地被周围的 材料。 本发明还涉及一种生产牙科铣块的方法，所述方法包括以下步骤：a）提供包含所述牙科用品的几何数据和与所述几何数据有关的颜色数据的个性化数据集C，b）产生 表面上的可硬化材料层，c）将步骤b）的可硬化材料层施加着色剂，其中将着色剂施加到相关的可硬化材料层的那些区域的至少一些区域 涉及牙科制品的几何数据; d）巩固步骤c）中获得的结果，从而获得至少部分硬化的材料层。

公开(公告)号：US20220125561A1

公开(公告)日：2022-04-28

申请号：US17567323

申请日：2022-01-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Helmar Mayr ,  Gallus Schechner

IPC: A61C13/00 ,  A61C5/77 ,  A61C13/083 ,  C03C10/00 ,  C03C3/097 ,  C03C4/00 ,  A61K6/15 ,  A61K6/16 ,  A61K6/78 ,  A61K6/818 ,  A61K6/822 ,  A61K6/853 ,  A61K6/871 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C03B19/01 ,  C03B19/06 ,  C03C8/08 ,  C03C17/00 ,  C03C19/00

Abstract: The present invention is directed to a process for producing a sintered lithium disilicate glass ceramic dental restoration out of a porous 3-dim article, the process comprising the step of sintering the porous 3-dim article having the shape of a dental restoration with an outer and inner surface to obtain a sintered lithium disilicate ceramic dental restoration, the sintered lithium disilicate glass ceramic dental restoration comprising Si oxide calculated as SiO2 from 55 to 80 wt.-%, Li oxide calculated as Li2O from 7 to 16 wt.-%, Al oxide calculated as Al2O3 from 1 to 5 wt.-%, and P oxide calculated as P2O5 from 1 to 5 wt.-%, wt.-% with respect to the weight of the dental restoration, the sintering being done under reduced atmospheric pressure conditions, the reduced atmospheric pressure conditions being applied at a temperature above 600° C. The present invention is also directed to a kit of parts comprising a porous 3-dim article having the shape of a dental milling block and a respective instruction of use.

公开(公告)号：US10953596B2

公开(公告)日：2021-03-23

申请号：US16060046

申请日：2016-12-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gioacchino Raia ,  Bernhard Hofmann ,  Adrian Eckert

IPC: B29C67/00 ,  B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/336 ,  B29C64/124 ,  B33Y50/02 ,  B29C64/393

Abstract: An additive manufacturing system has a light permeable base (2), a build carrier (4) for holding a workpiece (100) and a light source (5) which is arranged to emit light through the light permeable base (2). The light permeable base (2) and the build carrier (4) are positionable relative to each other in a build dimension in which the workpiece (100) is built up. The system further has a resin vat (3) in which the light permeable base (2) forms a wall portion thereof. The system further comprises a plurality of resin supplies (13, 15) for supplying different light hardenable resins in direct contact with each other in said vat (3). The system facilitates the rapid manufacturing of a dental restoration having a color gradation.

公开(公告)号：US09827076B2

公开(公告)日：2017-11-28

申请号：US14366301

申请日：2012-12-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gallus Schechner ,  Holger Hauptmann

IPC: G06F17/50 ,  A61C13/34 ,  A61C13/00 ,  A61C13/08 ,  A61C13/09

CPC classification number: A61C13/34 ,  A61C13/0004 ,  A61C13/082 ,  A61C13/09 ,  G06F17/50

Abstract: A method and system for making a dental restoration are provided. The method comprises the step of providing a computer model of a three-dimensional reference surface that is based for example on a tooth structure of a tooth to be restored in a patient's dentition. The method further comprises the steps of visualizing the three-dimensional reference surface, providing a user operable virtual material deposition tool, and using the virtual material deposition tool to deposit a plurality of differently colored layers on the reference surface. The system provides functionality to perform the method of the invention. The invention preferably helps maximizing optical and geometrical quality in a dental restoration.

公开(公告)号：US20210146612A1

公开(公告)日：2021-05-20

申请号：US17248456

申请日：2021-01-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gioacchino Raia ,  Bernhard Hofmann ,  Adrian Eckert

IPC: B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/336 ,  B29C64/124 ,  B33Y50/02 ,  B29C64/393

Abstract: An additive manufacturing system has a light permeable base, a build carrier for holding a workpiece and a light source which is arranged to emit light through the light permeable base. The light permeable base and the build carrier are positionable relative to each other in a build dimension in which the workpiece is built up. The system further has a resin vat in which the light permeable base forms a wall portion thereof. The system further comprises a plurality of resin supplies for supplying different light hardenable resins in direct contact with each other in said vat. The system facilitates the rapid manufacturing of a dental restoration having a color gradation.

公开(公告)号：US10849725B2

公开(公告)日：2020-12-01

申请号：US15801840

申请日：2017-11-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gallus Schechner ,  Holger Hauptmann

IPC: A61C13/34 ,  G06F30/00 ,  G16H20/40 ,  A61C13/08 ,  A61C13/09

Abstract: A method and system for making a dental restoration are provided. The method comprises the step of providing a computer model of a three-dimensional reference surface that is based for example on a tooth structure of a tooth to be restored in a patient's dentition. The method further comprises the steps of visualizing the three-dimensional reference surface, providing a user operable virtual material deposition tool, and using the virtual material deposition tool to deposit a plurality of differently colored layers on the reference surface. The system provides functionality to perform the method of the invention. The invention preferably helps maximizing optical and geometrical quality in a dental restoration.

公开(公告)号：US20180361659A1

公开(公告)日：2018-12-20

申请号：US16060046

申请日：2016-12-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gioacchino Raia ,  Bernhard Hofmann ,  Adrian Eckert

IPC: B29C64/135 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: An additive manufacturing system has a light permeable base (2), a build carrier (4) for holding a workpiece (100) and a light source (5) which is arranged to emit light through the light permeable base (2). The light permeable base (2) and the build carrier (4) are positionable relative to each other in a build dimension in which the workpiece (100) is built up. The system further has a resin vat (3) in which the light permeable base (2) forms a wall portion thereof. The system further comprises a plurality of resin supplies (13, 15) for supplying different light hardenable resins in direct contact with each other in said vat (3). The system facilitates the rapid manufacturing of a dental restoration having a color gradation.

公开(公告)号：US20150335407A1

公开(公告)日：2015-11-26

申请号：US14404038

申请日：2013-05-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Michael Jahns

IPC: A61C13/08 ,  A61C13/083 ,  A61C13/00

CPC classification number: A61C13/0022 ,  A61C13/0004 ,  A61C13/0013 ,  A61C13/082 ,  A61C13/083 ,  A61C13/09 ,  B29C64/165 ,  G16H20/40

Abstract: A method of making a customized dental blank comprises the steps of providing individual tooth color information, forming an open-celled dental blank precursor, providing the open-celled dental blank precursor with color in accordance with the individual tooth color information, and compressing the dental blank precursor. The method helps maximizing the optical quality of dental restoration at minimized costs.

Abstract translation: 制造定制牙科坯料的方法包括以下步骤：提供单独的牙齿颜色信息，形成开孔牙胚坯前体，根据单独的牙齿颜色信息提供开孔牙胚坯前体的颜色，以及压缩牙科 空白前体。 该方法有助于以最小的成本最大化牙科修复的光学质量。