METHOD OF MANUFACTURING AN ARTICLE
    52.
    发明申请

    公开(公告)号:US20190314124A1

    公开(公告)日:2019-10-17

    申请号:US16456020

    申请日:2019-06-28

    申请人: RENISHAW PLC

    发明人: David BEEBY

    摘要: A method of manufacturing an article comprising: (a) performing an additive manufacturing process to firm an article in an initial state, the article comprising mounting features and being supported during the additive manufacturing process by support structures; and (h) performing a second manufacturing process to transform the article into a second state, which second manufacturing process is a subtractive process comprising: (i) mounting, via the mounting features formed during the additive manufacturing process, the article in a holding device of a machine for operating on the article, with the support structures or at least remnants thereof remaining on the article, and (ii) with the article so mounted in the holding device, processing at least one feature on a surface of the article on which the support structures were provided to remove material on the at least one feature provided by the support structures.

    High translucent colored dental zirconia blank

    公开(公告)号:US10426583B2

    公开(公告)日:2019-10-01

    申请号:US15906939

    申请日:2018-02-27

    摘要: A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition including containing between 6.0 wt % or 7.5 wt % to 20 wt % of yttria (Y2O3). The green body has multiple different layers having a different chemical composition between adjacent layers. The green body has a pre-sintered translucency that is substantially the same across the multiple different layers, and subsequently has a post-sintered translucency and a post-sintered color intensity/chroma with an inverse relationship with the post-sintered translucency increasing in one direction across the multiple different layers and the post-sintered color intensity/chromes decreasing in the same direction across the multiple different layers. The green body can have a color component and a diameter of at least 90 mm and thickness of 10-25 mm.

    Blank for producing a dental prosthesis

    公开(公告)号:US10405952B2

    公开(公告)日:2019-09-10

    申请号:US14381302

    申请日:2013-02-28

    摘要: A blank which is provided for producing dental shaped parts such as crowns, bridges, veneers, abutments and the like, already has at least one preform of a dental shaped part, which is available for producing this shaped part.In particular, the preforms in the blank are prepared by machining of the blank, preferably by cutting, sawing, grinding, drilling and/or milling. The preforms are in particular preforms for single crowns.

    MULTI-LAYERED ZIRCONIA DENTAL MILL BLANK AND PROCESS OF PRODUCTION

    公开(公告)号:US20190231494A1

    公开(公告)日:2019-08-01

    申请号:US16095433

    申请日:2017-10-21

    IPC分类号: A61C13/00 A61C13/083

    摘要: The invention relates to a porous multi-layered coloured zirconia dental mill blank comprising a bottom layer B having the composition COMP-B which comprises ceramic components CER-COMP-B, colouring components COL-COMP-B and stabilizing components STAB-COMP-B, a top layer E having the composition COMP-E which comprises ceramic components CER-COMP-E, colouring components COL-COMP-E stabilizing components STAB-COMP-E, at least one intermediate layer Ex having the composition COMP-E of top layer E, at least one intermediate layer Bx having the composition COMP-B of bottom layer B, x being an integer and indicating the number of intermediate layers, wherein the layers with compositions COMP-B and COMP-E are arranged in alternating order, and wherein the thickness of the individual layers B, Bx is decreasing from bottom to top and the thickness of the individual layers E, Ex is decreasing from top to bottom. The dental mill blank can be used for producing dental articles.

    Coloring solution for zirconia ceramics

    公开(公告)号:US10292795B2

    公开(公告)日:2019-05-21

    申请号:US14429205

    申请日:2013-09-12

    摘要: Kits 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. Methods 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.