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    PINK COLORED PRE-SINTERED OR FULLY-SINTERED BLANK
    1.
    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 TO INCREASE THE STRENGTH OF A FORM BODY OF A LITHIUM SILICATE GLASS CERAMIC
    2.
    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。

    METHOD FOR PRODUCING A MULTI-LAYER BLANK WITH A THROUGH-HOLE
    4.
    发明公开
    METHOD FOR PRODUCING A MULTI-LAYER BLANK WITH A THROUGH-HOLE 审中-公开

    公开(公告)号：US20230249379A1

    公开(公告)日：2023-08-10

    申请号：US17592677

    申请日：2022-02-04

    Applicant: DENTSPLY SIRONA INC.

    Inventor： Stefan FECHER ,  Lothar VÖLKL ,  Sven GIESE ,  Tobias RÖSCH ,  Andreas GEBHARDT

    IPC: B28B3/08 ,  B28B11/24

    CPC classification number: B28B3/08 ,  B28B11/243

    Abstract: A method for forming a multi-layer blank of a ceramic material including the steps of: providing a mold that includes at least one side wall surrounding a lower press plunger to form a cavity therebetween, wherein the lower press plunger has a movable pin; filling into the mold a first ceramic material; extending the movable pin from an upper surface of the lower press plunger and into the cavity; pressing a first upper press plunger against the first ceramic material so that a first open cavity is formed while at least a portion of the first upper press plunger is in contact with the movable pin to maintain the through-hole through the first layer; filling into the mold a second ceramic material of a different composition; extending the movable pin from an upper surface of the first layer and into the first open cavity; and pressing a second upper press plunger against the second layer so that a second open cavity is formed in communication with the through-hole that extends through the first and second layers to form the blank.

    DENTAL IMPLANT AND DENTAL RESTORATION SYSTEM COMPRISING SUCH A DENTAL IMPLANT
    5.
    发明申请
    DENTAL IMPLANT AND DENTAL RESTORATION SYSTEM COMPRISING SUCH A DENTAL IMPLANT 有权

    公开(公告)号：US20230014589A1

    公开(公告)日：2023-01-19

    申请号：US17782188

    申请日：2020-12-10

    Applicant: DENTSPLY SIRONA Inc. ,  DEGUDENT GMBH

    Inventor： Lothar VÖLKL ,  Stefan FECHER

    IPC: A61C8/00 ,  C04B35/48

    Abstract: The present invention is related to a dental implant comprising at least a lower part and at least an upper part; wherein said lower part of the dental im-plant, which is adapted to be connected to the jawbone of a patient, is made of an at least first material; wherein said upper part of the dental implant, which is adapted to be connected to the lower part of the dental implant, is made of an at least second material; and wherein the upper surface of the upper part of the dental implant is adapted to be aligned with the upper surface of the jawbone of a patient; wherein said at least first material is different from said at least second material; wherein the at least second material of the upper part of the implant is made of a ceramic material, and wherein said ceramic material comprises zirco-nium dioxide comprising at least one coloring additive. The present invention is further related to a dental restoration system com-prising at least such an inventive dental implant and at least an abutment, wherein the abutment is adapted to be connected to the dental implant, and wherein the abutment is made of at least a third material; wherein the abutment is made of a ceramic material, and wherein said ceramic material comprises zirconium dioxide comprising at least one coloring additive.

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