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    METHOD FOR PRODUCING A DENTAL RESTORATION
    3.
    发明申请
    METHOD FOR PRODUCING A DENTAL RESTORATION 审中-公开

    公开(公告)号：US20170189146A1

    公开(公告)日：2017-07-06

    申请号：US15391301

    申请日：2016-12-27

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Lothar VOLKL ,  Stefan FECHER

    IPC: A61C13/08 ,  A61C5/77 ,  A61C5/73 ,  A61C13/00 ,  A61C13/09

    CPC classification number: A61C13/081 ,  A61C5/73 ,  A61C5/77 ,  A61C13/0004 ,  A61C13/0022 ,  A61C13/083 ,  A61C13/09

    Abstract: The invention relates to a method for the production of a dental restoration from a blank, which has regions or layers of ceramic materials with differing compositions, under use of the method steps, filling of the ceramic materials into a mold, pressing of the ceramic materials to form a blank, removal of the blank from the mold, temperature treatment of the blank, wherein the ceramic materials are filling into the mold in such a way that layers and/or regions after temperature treatment have a profile that is available as a digital set. There is then a virtual contouring of the dental restoration taking shrinkage into account, a virtual representation of the blank, positioning of the virtually represented dental restoration in the virtually represented blank taking into account the material characteristics of the layers and/or regions, determination of the data for the blank which correspond to the position of the virtually arranged dental restoration or the mold in the blank, as well as transfer of the data to a machine to produce the dental restoration from the blank.

    METHOD TO INCREASE THE STRENGTH OF A FORM BODY OF A LITHIUM SILICATE GLASS CERAMIC
    4.
    发明申请
    METHOD TO INCREASE THE STRENGTH OF A FORM BODY OF A 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：US20160340238A1

    公开(公告)日：2016-11-24

    申请号：US15160529

    申请日：2016-05-20

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Lothar VÖLKL ,  Stefan FECHER

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

    CPC classification number: C03C21/002 ,  A61K6/0017 ,  A61K6/021 ,  A61K6/024 ,  A61K6/025 ,  A61K6/0273 ,  A61K6/0612 ,  C03B25/00 ,  C03C3/097 ,  C03C4/0021 ,  C03C10/0027 ,  C03C17/22 ,  C03C2204/00

    Abstract: The invention relates to a method to increase the strength of a form body of lithium silicate glass ceramic, which after it has a desired end geometry and after the application of a material which influences its surface to form a coating, is subject to a heat treatment. To create a surface compressive stress through the replacement of lithium ions by alkali ions of greater diameter at least that region not covered by the application layer is covered by a melt or paste consisting of or containing a salt of an alkali metal with ions of greater diameter and the form body is in contact with the melt or paste for a period of time t at a temperature T and the melt or paste is subsequently removed from the form body.

    Abstract translation: 本发明涉及一种增加硅酸锂玻璃陶瓷的成形体的强度的方法，该方法在其具有期望的端部几何形状之后并且施加影响其表面以形成涂层的材料之后，经受热处理 。 为了通过用较大直径的碱离子代替锂离子来产生表面压应力，至少至少未被施加层覆盖的区域由包含或含有碱金属的盐与较大直径的离子的熔体或糊料所覆盖 并且所述成型体与所述熔体或糊状物在温度T下接触一段时间t，并且随后将熔体或糊料从所述成形体中取出。

    PINK COLORED PRE-SINTERED OR FULLY-SINTERED BLANK
    5.
    发明申请
    PINK COLORED PRE-SINTERED OR FULLY-SINTERED BLANK 有权

    公开(公告)号：US20220183804A1

    公开(公告)日：2022-06-16

    申请号：US17549388

    申请日：2021-12-13

    Applicant: DENTSPLY SIRONA INC.

    Inventor： Stefan FECHER ,  Lothar VÖLKL ,  Daniel AMMON

    IPC: A61C13/00 ,  C04B35/48

    Abstract: The present invention is related to a pink colored pre-sintered or fully-sintered blank for use for the production of a dental restoration, such as a denture base of a full or a partial denture, a partial denture, or an implant supported denture, consisting of a ceramic material which comprises zirconium dioxide doped with yttrium oxide (Y2O3), calcium oxide (CaO), magnesium oxide (MgO) and/or cerium oxide (CeO2), wherein the pink colored blank comprises 2 to 25 wt %, preferably 4 to 17 wt %, and more preferably 5 to 12 wt %, erbium oxide.

    METHOD FOR THE PRODUCTION OF A BLANK, BLANK AND A DENTAL RESTORATION
    6.
    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.

    METHOD FOR THE POSITIONING OF A BLANK
    7.
    发明申请
    METHOD FOR THE POSITIONING OF A BLANK 审中-公开

    公开(公告)号：US20190046305A1

    公开(公告)日：2019-02-14

    申请号：US15671779

    申请日：2017-08-08

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Andreas GEBHARDT ,  Stefan FECHER ,  Lothar VOLKL

    IPC: A61C13/00

    Abstract: The invention relates to a method for positioning a blank (116), which after insertion in a holder is in contact therewith, wherein the holder has a structural element. The blank (16) is positioned in the holder by means of an adapter (118), which is inserted in both the holder or the structural element and the blank, wherein the adapter positively engages with the holder or the structural element and with the blank.

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