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    METHOD FOR THE PRODUCTION OF A BLANK, BLANK AND A DENTAL RESTORATION
    2.
    发明申请
    METHOD FOR THE PRODUCTION OF A BLANK, BLANK AND A DENTAL RESTORATION 审中-公开

    公开(公告)号：US20190099244A1

    公开(公告)日：2019-04-04

    申请号：US15786030

    申请日：2017-10-17

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Markus VOLLMANN ,  Lothar VOLKL ,  Stefan FECHER ,  Carsten WIESNER

    IPC: A61C13/00 ,  B29C43/14 ,  A61C5/77 ,  A61C13/083 ,  A61K6/02

    Abstract: 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.

    DENTAL PROSTHESIS
    4.
    发明申请
    DENTAL PROSTHESIS 有权

    公开(公告)号：US20210177544A1

    公开(公告)日：2021-06-17

    申请号：US17267875

    申请日：2019-07-31

    Applicant: DENTSPLY SIRONA Inc. ,  DEGU-DENT GMBH

    Inventor： Markus VOLLMANN

    IPC: A61C5/73 ,  A61C13/00 ,  A61K6/833

    Abstract: The present invention is related to a dental prosthesis, in particular a crown, consisting of or comprising an inner primary part, such as a cap, which is joined in a fixed manner to an outer secondary part.
    Further, the present invention is also directed to a dental kit for manufacturing or producing such a dental prosthesis, in particular a crown.

    METHOD TO PRODUCE A DENTAL STRUCTURE AND DENTAL STRUCTURE
    5.
    发明申请
    METHOD TO PRODUCE A DENTAL STRUCTURE AND DENTAL STRUCTURE 审中-公开
    生产牙科结构和牙科结构的方法

    公开(公告)号：US20160340240A1

    公开(公告)日：2016-11-24

    申请号：US15159427

    申请日：2016-05-19

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Markus VOLLMANN ,  Udo SCHUSSER

    IPC: C03C21/00 ,  C03C10/00 ,  C03B19/02

    CPC classification number: C03C21/008 ,  A61C5/77 ,  A61C13/081 ,  A61C13/083 ,  A61K6/024 ,  A61K6/025 ,  A61K6/0273 ,  A61K6/0612 ,  C03C3/097 ,  C03C4/0021 ,  C03C10/0027 ,  C03C21/002 ,  C03C2204/00

    Abstract: The invention relates to a method to produce a dental structure with a cavity having a negative form of the structure, which is formed in an investment material, wherein flowable lithium silicate glass ceramic is pressed into the cavity. Thereby a compressive surface stress is created in the ceramic structure through the replacement of lithium ions by alkali ions, in that the model is enriched with alkali compounds and/or the model is covered with a layer of a material containing alkali ions.

    Abstract translation: 本发明涉及一种生产牙科结构的方法，该牙科结构具有形成为投射材料的结构的负形式的空腔，其中可流动的硅酸锂玻璃陶瓷被压入腔中。 因此，通过用碱离子替代锂离子，在陶瓷结构中产生压缩表面应力，因为该模型富含碱性化合物和/或模型被含有碱离子的材料层覆盖。

    METHOD TO INCREASE THE STRENGTH OF A FORM BODY OF LITHIUM SILICATE GLASS CERAMIC
    6.
    发明申请
    METHOD TO INCREASE THE STRENGTH OF A FORM BODY OF LITHIUM SILICATE GLASS CERAMIC 审中-公开
    提高硅酸钠玻璃陶瓷表面强度的方法

    公开(公告)号：US20160340239A1

    公开(公告)日：2016-11-24

    申请号：US15160678

    申请日：2016-05-20

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Michael PRÖPSTER ,  Markus VOLLMANN

    IPC: C03C21/00 ,  C03B25/00 ,  C03C17/22 ,  C03C10/00

    Abstract: The invention relates to a method to produce a medical form body of lithium silicate glass ceramic. To increase its strength it is proposed that a surface compressive stress is created in a form body of lithium silicate glass, or containing lithium silicate glass, through the replacement of lithium ions by alkali metal ions of greater diameter. For this purpose the form body is covered with a paste that contains alkali metal.

    Abstract translation: 本发明涉及一种生产硅酸锂玻璃陶瓷的医用成形体的方法。 为了提高其强度，提出通过更大直径的碱金属离子来代替锂离子，在硅酸锂玻璃的形态体中产生或含有硅酸锂玻璃的表面压应力。 为了这个目的，形状体被含有碱金属的糊状物覆盖。

    METHOD FOR THE PRODUCTION OF A DENTAL RESTORATION
    8.
    发明申请
    METHOD FOR THE PRODUCTION OF A DENTAL RESTORATION 审中-公开

    公开(公告)号：US20180104031A1

    公开(公告)日：2018-04-19

    申请号：US15786631

    申请日：2017-10-18

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Markus VOLLMANN ,  Lothar VOLKL ,  Stefan FECHER ,  Carsten WIESNER

    IPC: A61C13/00 ,  A61K6/02 ,  A61C13/08

    Abstract: The invention relates to a method for the production of a restoration from a blank consisting of, or containing, a lithium silicate glass ceramic, wherein at least two layers of ceramic material of different compositions are filled into a mold layer-by-layer and after filling of the layers they are then pressed and sintered, wherein after filling of a first layer this is structured on its surface in such a way that the first layer, viewed across its surface, differs in its height from region to region, and then a layer with a composition that differs from the first layer is filled as a second layer into the mold. After sintering the dental restoration is produced from the blank by mechanical working.

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