PROCESS FOR SELECTIVELY TREATING THE SURFACE OF DENTAL CERAMIC

    公开(公告)号:US20170105818A1

    公开(公告)日:2017-04-20

    申请号:US15128637

    申请日:2016-03-18

    Abstract: The invention relates to a process for selectively treating parts of the surface of a porous dental zirconia article, the process comprising the steps of providing a liquid composition and a porous 3-dimensional dental zirconia article having an outer and inner surface, applying the liquid composition to only a part the outer surface and/or inner surface of the porous dental zirconia article, the liquid composition comprising a whitening agent comprising a phosphorous containing component, the phosphorous containing component comprising a phosphate, phosphone or phosphine moiety, with the proviso that at least one P—O unit of the phosphate, phosphone or phosphine moiety is dissociable or able to otherwise interact with zirconia. The invention also relates to a dental zirconia article obtainable or obtained by such a process and a kit of parts comprising a container containing a certain liquid composition.

    WHITENING COMPOSITION FOR TREATING THE SURFACE OF DENTAL CERAMIC AND RELATED METHODS
    48.
    发明申请
    WHITENING COMPOSITION FOR TREATING THE SURFACE OF DENTAL CERAMIC AND RELATED METHODS 有权
    用于处理牙科陶瓷表面的白色组合物及相关方法

    公开(公告)号:US20150297466A1

    公开(公告)日:2015-10-22

    申请号:US14646277

    申请日:2013-12-10

    Inventor: Michael Jahns

    Abstract: The invention relates to a process of treating parts of the surface of a porous dental ceramic article comprising the steps of: a) providing a composition and a porous dental ceramic article having an outer surface, b) applying the composition to only a part of the outer surface of the porous dental ceramic article, c) optionally drying the porous dental ceramic article, and d) optionally firing the porous dental ceramic article, the composition comprising: a liquid being miscible with water, but not being water, a whitening agent comprising nano-sized metal oxide particles, metal ion containing components or mixtures thereof, a stabilizer (e.g. acid, base, complexing agent or mixture thereof). the porous dental ceramic article showing a N2 adsorption and/or desorption of isotherm type IV according to IUPAC classification. The invention also relates to a dental ceramic article obtainable by a process.

    Abstract translation: 本发明涉及处理多孔牙科陶瓷制品的表面部分的方法,包括以下步骤:a)提供具有外表面的组合物和多孔牙科陶瓷制品,b)将该组合物施用于仅仅一部分 所述多孔牙科陶瓷制品的外表面,c)任选地干燥所述多孔牙科陶瓷制品,以及d)任选地烧制所述多孔牙科陶瓷制品,所述组合物包含:液体可与水混合而不是水,所述增白剂包含 纳米尺寸金属氧化物颗粒,含金属离子的组分或其混合物,稳定剂(例如酸,碱,络合剂或其混合物)。 根据IUPAC分类显示等温线型IV的N 2吸附和/或解吸的多孔牙科陶瓷制品。 本发明还涉及可通过一种方法获得的牙科陶瓷制品。

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