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    Preformed dental composite crown, process of production and use thereof
    3.
    发明授权
    Preformed dental composite crown, process of production and use thereof 有权

    公开(公告)号：US11534264B2

    公开(公告)日：2022-12-27

    申请号：US16813024

    申请日：2020-03-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andreas Herrmann ,  Gallus Schechner ,  Reinhold Hecht ,  Helmar B. Mayr ,  Malte Korten ,  Bernhard Hofmann ,  Gioacchino Raia ,  Till Meurer

    IPC: A61C5/73 ,  A61C13/087 ,  A61C13/20 ,  A61C5/77 ,  A61K6/893

    Abstract: The invention relates to a preformed dental composite crown being characterized by its shape and chemical composition, the shape being characterized as follows: having an occlusal top surface and depending buccal, mesial, distal and lingual side surfaces, the side surfaces being connected to each other and forming a crown cervix, the wall thickness of the crown at the crown cervix being lower than 0.6 mm; at least two of opposing depending side surfaces having a concave shape; the chemical composition of the material the preformed dental composite crown is made of being a hardened composition comprising the following components: nano-filler(s) in an amount from 20 to 70 wt. %, resin matrix in an amount from 20 to 75 wt. %, wt. % with respect to the weight of the chemical composition, the resin matrix comprising urethane(meth)acrylate(s) and (meth)acrylate(s) not comprising a urethane moiety.
    The invention also relates to a kit of parts comprising such a preformed dental composite crown, processes for producing such crowns and the use of such a crown for treating a dental tooth.

    PREFORMED DENTAL COMPOSITE CROWN, PROCESS OF PRODUCTION AND USE THEREOF
    5.
    发明申请
    PREFORMED DENTAL COMPOSITE CROWN, PROCESS OF PRODUCTION AND USE THEREOF 审中-公开

    公开(公告)号：US20200205935A1

    公开(公告)日：2020-07-02

    申请号：US16813024

    申请日：2020-03-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andreas Herrmann ,  Gallus Schechner ,  Reinhold Hecht ,  Helmar B. Mayr ,  Malte Korten ,  Bernhard Hofmann ,  Gioacchino Raia ,  Till Meurer

    IPC: A61C5/73 ,  A61C13/087 ,  A61C13/20 ,  A61C5/77 ,  A61K6/893

    Abstract: The invention relates to a preformed dental composite crown being characterized by its shape and chemical composition, the shape being characterized as follows: having an occlusal top surface and depending buccal, mesial, distal and lingual side surfaces, the side surfaces being connected to each other and forming a crown cervix, the wall thickness of the crown at the crown cervix being lower than 0.6 mm; at least two of opposing depending side surfaces having a concave shape; the chemical composition of the material the preformed dental composite crown is made of being a hardened composition comprising the following components: nano-filler(s) in an amount from 20 to 70 wt. %, resin matrix in an amount from 20 to 75 wt. %, wt. % with respect to the weight of the chemical composition, the resin matrix comprising urethane(meth)acrylate(s) and (meth)acrylate(s) not comprising a urethane moiety.The invention also relates to a kit of parts comprising such a preformed dental composite crown, processes for producing such crowns and the use of such a crown for treating a dental tooth.

    COLORING SOLUTION FOR ZIRCONIA CERAMICS
    6.
    发明申请
    COLORING SOLUTION FOR ZIRCONIA CERAMICS 审中-公开
    ZIRCONIA陶瓷的彩色解决方案

    公开(公告)号：US20150223917A1

    公开(公告)日：2015-08-13

    申请号：US14429205

    申请日：2013-09-12

    Applicant: Andreas HERRMANN ,  Michael JAHNS ,  3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andreas Herrmann ,  Michael Jahns

    IPC: A61C13/08 ,  A61C8/00 ,  C09D133/06 ,  A61C13/083

    CPC classification number: A61C13/082 ,  A61C8/0012 ,  A61C8/005 ,  A61C13/083 ,  A61K6/0005 ,  A61K6/0225 ,  A61K6/023 ,  A61K6/024 ,  A61K6/0245 ,  A61K6/0255 ,  C04B41/009 ,  C04B41/5007 ,  C04B41/85 ,  C04B2111/00836 ,  C04B2111/82 ,  C09D133/066 ,  Y10T428/24926 ,  C04B35/48 ,  C04B38/0054 ,  C04B41/4535

    Abstract: The invention relates to kit 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. The invention also relates to a method 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.

    Abstract translation: 本发明涉及包含着色溶液，多孔氧化锆制品，任选的应用设备的部件套件，该溶液包含高于约0.05mol / l量的着色剂阳离子，溶剂用于 离子，任选的络合剂，任选的增稠剂，任选的有机标记物，任选的添加剂，根据IUPAC显示出类型IV的等温线的N 2吸附和解吸的多孔氧化锆制品 分类。 本发明还涉及一种用于着色氧化锆制品的方法，包括以下步骤：提供多孔氧化锆制品和着色溶液，将着色溶液施加到多孔氧化锆制品的外表面的至少一部分上，任选地干燥多孔氧化锆 制备上述步骤，烧结多孔氧化锆制品以获得着色的氧化锆陶瓷制品。

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