Method of manufacturing multilayer zirconia block for artificial teeth

    公开(公告)号:US10245127B2

    公开(公告)日:2019-04-02

    申请号:US15237962

    申请日:2016-08-16

    摘要: Disclosed is a method of manufacturing a multilayer zirconia block for artificial teeth, including a first material mixing step of mixing a 3 mol % yttrium oxide-tetragonal zirconia polycrystal and an organic binder, a second material mixing step of mixing a 3 mol % yttrium oxide-tetragonal zirconia polycrystal, a 5 mol % yttrium oxide-tetragonal zirconia polycrystal and an organic binder, a third material mixing step of mixing a 5 mol % yttrium oxide-tetragonal zirconia polycrystal and an organic binder, a compression molding step of sequentially placing the mixtures obtained in the first material mixing step, the second material mixing step, and the third material mixing step in a mold for compression molding and performing compression molding, and a calcination step of calcining a compression molded product obtained in the compression molding step. This method provides a multilayer zirconia block that contains yttrium oxide, the amount of which is adjusted in the manufacturing process, thus showing a color similar to that of natural teeth after impregnation with a coloring solution.

    Method and composition for adhering to tooth structure

    公开(公告)号:US09427382B2

    公开(公告)日:2016-08-30

    申请号:US12900526

    申请日:2010-10-08

    摘要: A dental adhesive composition has an adhesive component and an activator component. The adhesive composition has a volatile organic solvent component, one or more polymerizable (meth)acrylate compounds optionally containing fillers, and a polymerization photoinitiator. The adhesive component may also be a substantially homogeneous mixture of one or more polymerizable (meth)acrylate compounds and an effective amount of a photoinitiator, without a solvent. The activator component includes an aromatic sulfinate salt and an activator component solvent. A method for adhering a restorative to a dental surface includes preparing the surface for restoration; applying a mixture of an adhesive component and an activator component to the prepared cavity, thereby forming a coated cavity surface; and, applying a direct or indirect dental restorative to the coated cavity surface.

    Adhesive amalgam system
    3.
    发明授权
    Adhesive amalgam system 失效
    粘合剂汞合金系统

    公开(公告)号:US5662886A

    公开(公告)日:1997-09-02

    申请号:US638614

    申请日:1991-01-08

    IPC分类号: A61K6/00 A61K6/05

    CPC分类号: A61K6/0088 A61K6/05

    摘要: A modified amalgam composition forming an adhesive bond with tooth structure treated with a dental adhesive. The modified amalgam can be prepared by admixing particulate additives into conventional amalgam alloy powder to form a modified alloy powder and then triturating the modified alloy powder with mercury. The modified amalgam when applied to a prepared tooth cavity that has been precoated with an acrylate- or methacrylate-functional dental adhesive results in an adhesive bond between the modified amalgam and coated tooth structure. Preferred particulate additives for the amalgam alloy powder are acrylate- or methacrylate-functional polymers, metal salts of acrylates or methacrylates, nonmetallic fillers, oxidizing agents and reducing agents.

    摘要翻译: 形成与用牙科粘合剂处理的齿结构的粘合剂粘合剂的改性汞齐组合物。 改性汞齐可以通过将颗粒添加剂与常规汞合金粉末混合以形成改性合金粉末,然后用汞研磨改性合金粉末来制备。 改进的汞齐适用于预先涂有丙烯酸酯或甲基丙烯酸酯功能的牙科粘合剂的预制牙腔时,会导致改性汞齐与涂覆牙齿结构之间的粘结。 汞齐合金粉末的优选颗粒添加剂是丙烯酸酯或甲基丙烯酸酯官能聚合物,丙烯酸酯或甲基丙烯酸酯的金属盐,非金属填料,氧化剂和还原剂。

    Amalgamable composition and method of production
    4.
    发明授权
    Amalgamable composition and method of production 失效
    合并组合物和生产方法

    公开(公告)号:US5354353A

    公开(公告)日:1994-10-11

    申请号:US142021

    申请日:1993-10-28

    IPC分类号: A61K6/05 B22F1/00 B22F9/02

    摘要: A multi-component composition suitable for amalgamation with mercury to form a dental amalgam, an amalgam and a method for producing such a multi-component composition. The multi-component composition has: from 30 to 90% (by weight) of a first component containing at least 30% silver, at least 20% tin and at least 10% copper; from 10 to 70% (by weight) of a second component containing at least 30% silver, at least 20% tin and at least 10% copper; and up to 15% (by weight) of a third component containing silver and/or alloy powder containing at least 80% (by weight) silver. The first component is spherically shaped atomized alloy powder. The second component is mechanically worked atomized alloy powder. The surface area to volume ratio of the powder of the second component is greater than the surface area to volume ratio of the powder of the first component.

    摘要翻译: 适用于与汞合并以形成牙科汞合金,汞合金的多组分组合物和用于制备这种多组分组合物的方法。 多组分组合物具有:含有至少30%银,至少20%锡和至少10%铜的第一组分的30至90重量% 含有至少30%银,至少20%锡和至少10%铜的第二组分的10至70%(重量) 和含有至少含有80%(重量)银的银和/或合金粉末的至多15%(重量)的第三成分。 第一组分是球形雾化合金粉末。 第二部分是机械加工雾化合金粉末。 第二组分的粉末的表面积与体积比大于第一组分的粉末的表面积与体积比。

    Dental amalgam alloy
    5.
    发明授权
    Dental amalgam alloy 失效
    牙合金合金

    公开(公告)号:US4859240A

    公开(公告)日:1989-08-22

    申请号:US58831

    申请日:1987-06-05

    申请人: Graham J. Parker

    发明人: Graham J. Parker

    IPC分类号: A61K6/05 C22C30/02

    CPC分类号: A61K6/05 C22C30/02 Y10S75/955

    摘要: The present invention relates to a dental amalgam alloy comprising by weight, as alloying ingredients, from about 30 to 70% silver, from about 20 to 35% tin, from about 10 to 30% cooper, from 0 to about 5% indium, from 0 to about 1% zinc and from about 0.01 to 2% of a Group VIII metal selected from the group consisting of platinum, rhodium, iridium and ruthenium.

    摘要翻译: 本发明涉及一种牙科汞齐合金,其包含以合金成分为约30至70%的银,约20至35%的锡,约10至30%的铜,0至约5%的铟,来自 0至约1%的锌和约0.01至2%的选自铂,铑,铱和钌的VIII族金属。

    Dental amalgam alloy
    6.
    发明授权
    Dental amalgam alloy 失效
    牙合金合金

    公开(公告)号:US4686082A

    公开(公告)日:1987-08-11

    申请号:US626722

    申请日:1984-07-02

    申请人: Graham J. Parker

    发明人: Graham J. Parker

    IPC分类号: A61K6/05 C22C30/02 C22C5/08

    CPC分类号: A61K6/05 C22C30/02 Y10S75/955

    摘要: The present disclosure relates to a dental amalgam alloy comprising by weight, as alloying ingredients, from about 30 to 70% silver, from about 20 to 35% tin, from about 10 to 30% copper, from 0 to about 5% indium, from 0 to about 1% zinc and from about 0.01 to 2% of a Group VIII metal selected from the group consisting of platinum, rhodium, iridium and ruthenium.

    摘要翻译: 本发明涉及一种牙科汞齐合金,其包含以重量计,作为合金成分,约30至70%的银,约20至35%的锡,约10至30%的铜,0至约5%的铟, 0至约1%的锌和约0.01至2%的选自铂,铑,铱和钌的VIII族金属。

    Device and method for mixing liquid and powdery components, particularly
for dental purposes
    7.
    发明授权
    Device and method for mixing liquid and powdery components, particularly for dental purposes 失效
    用于混合液体和粉末组分的装置和方法,特别用于牙科用途

    公开(公告)号:US4537303A

    公开(公告)日:1985-08-27

    申请号:US557472

    申请日:1983-12-02

    申请人: Ernst Muhlbauer

    发明人: Ernst Muhlbauer

    CPC分类号: A61C5/066

    摘要: A portion package assembly of dental amalgam components and a method of mixing in a vibration dental mixing capsule is disclosed comprising a first portion package having a foil pocket containing a predetermined amount of powdery dental component with the foil pocket being comprised of material adapted to rupture in a dental mixing capsule during vibration and having a specific gravity of at least several times less than the specific gravity of the powdery dental component and a second portion package having a foil pocket containing a predetermined amount of liquid dental component coordinated to the predetermined amount of powdery component with the foil pocket being comprised of material adapted to rupture in the mixing capsule during vibration mixing.

    摘要翻译: 公开了一种牙科汞合金部件的部分包装组件和在振动牙科混合胶囊中混合的方法,包括具有包含预定量的牙粉成分的箔袋的第一部分包装,其中箔袋由适合于在 在振动过程中的牙齿混合胶囊,其比重比粉状牙科部件的比重小至少几倍;以及第二部分包装,其具有包含与预定量的粉末状物质配合的预定量的液体牙齿成分的箔袋 组件与箔袋由适于在振动混合期间在混合胶囊中破裂的材料组成。

    Corrosion-resistant dental alloy
    8.
    发明授权
    Corrosion-resistant dental alloy 失效
    耐腐蚀牙科合金

    公开(公告)号:US4234339A

    公开(公告)日:1980-11-18

    申请号:US936669

    申请日:1978-08-24

    IPC分类号: A61K6/05 B22F1/00 C22C1/04

    摘要: A corrosion-resistant dental alloy is disclosed which has improved handling characteristics during the filling of a dental cavity. The alloy is a substantially uniform blend of three types of particles having the same chemical components, but differing in morphology and, optionally, in proportions of components. One type of particle is spherical or spheroidal in form. The second type of particle is a randomly-shaped microcrystalline form. The third type of particle is a flake-like particle. Handling characteristics of an amalgam prepared from such three particles can be adjusted to suit the requirements of the user by varying the relative proportions of the three types of particles while still retaining the corrosion resistance of the particles.

    摘要翻译: 公开了一种耐腐蚀牙科合金,其在牙腔填充期间具有改善的处理特性。 该合金是具有相同化学成分的三种类型的颗粒的基本上均匀的共混物,但在形态和组分的任意比例上都是不同的。 一种类型的颗粒是球形或球形的形式。 第二种类型的颗粒是随机形状的微晶形式。 第三种类型的颗粒是片状颗粒。 可以通过改变三种类型的颗粒的相对比例来调整由这样的三个颗粒制备的汞齐的处理特性,以适应使用者的要求,同时仍保持颗粒的耐腐蚀性。

    Cavity liner for dental restorations
    9.
    发明授权
    Cavity liner for dental restorations 失效
    用于牙科修复体的腔衬

    公开(公告)号:US4064629A

    公开(公告)日:1977-12-27

    申请号:US652238

    申请日:1976-01-26

    IPC分类号: A61K6/00 A61K6/05 A61K5/01

    CPC分类号: A61K6/05

    摘要: Dental restorations are prepared by preparing a cavity within a carious tooth for receiving a dental amalgam filling;Coating the surfaces of the cavity with a layer of an adhesive-metal lining composition, the metal of the composition being characterized by the capability of being amalgamated by diffusion of the mercury from a subsequently applied dental amalgam filling, and which is further characterized by a corrosion resistance which is higher than the corrosion resistance of the subsequently applied dental amalgam filling; and packing the remaining adhesive-metal coated cavity with Ag-Hg-Sn dental amalgam, whereby free mercury present in the amalgam is diffused into, and amalgamates with the metal of the adhesive-metal lining coating, so as to form an integral restoration of the dental amalgam and the coating, and the adhesive effectively promotes bonding between the integral restoration and the cavity surfaces.

    摘要翻译: 通过在龋牙内准备一个用于接受牙科汞合金填充物的腔体来制备牙齿修复体; 用粘合金属内衬组合物涂层的表面,由组合物的金属组成的金属,其特征在于通过从后续的应用的牙膏填充物中扩散出的汞,而且由A进一步表征 耐腐蚀性高于后续应用的牙膏填料的耐腐蚀性; 并用Ag-Hg-Sn牙科汞齐包装剩余的粘合金属涂层,由此将汞齐中存在的游离汞扩散到粘合金属衬里涂层的金属和汞合金中,以形成整体复原 牙科汞合金和涂层,并且粘合剂有效地促进整体式修复体和腔体表面之间的结合。

    Dental amalgams
    10.
    发明授权
    Dental amalgams 失效
    牙科汞合金

    公开(公告)号:US3997328A

    公开(公告)日:1976-12-14

    申请号:US644870

    申请日:1975-12-29

    申请人: Evan H. Greener

    发明人: Evan H. Greener

    CPC分类号: C22C5/06 A61K6/05

    摘要: Dental compositions comprising an admixture of two powdered alloys which when amalgamated with mercury produce corrosion-resistant dental amalgams.

    摘要翻译: 包含两种粉末状合金的混合物的牙科组合物,当与汞合并时产生抗腐蚀牙科汞合金。