Dental porcelain paste and method of using the same
    1.
    发明授权
    Dental porcelain paste and method of using the same 失效
    牙膏及其使用方法

    公开(公告)号:US4557691A

    公开(公告)日:1985-12-10

    申请号:US642281

    申请日:1984-08-20

    IPC分类号: A61K6/06 A61K6/09 A61K6/08

    摘要: A porcelain paste comprising a porcelain powder mixed with an aqueous colloidal dispersion of a urethane polymer. The paste can be applied as the first layer to a dental coping, and does not need to be fired prior to the addition of the body porcelain layers.

    摘要翻译: 一种瓷浆,其包含与氨基甲酸酯聚合物的水性胶体分散体混合的瓷粉。 该糊剂可以作为牙科应用的第一层施加,并且在添加身体瓷层之前不需要被烧制。

    Method for manufacturing dental restorations
    3.
    发明授权
    Method for manufacturing dental restorations 失效
    牙科修复体的制造方法

    公开(公告)号:US06648645B1

    公开(公告)日:2003-11-18

    申请号:US09653377

    申请日:2000-09-01

    IPC分类号: A61C510

    摘要: A ceramic tape is provided in its green state so that it is malleable and formable to a mold for forming a dental restoration, but will not break or crack as it is applied to the mold. Pressure may be applied to further form or adapt the ceramic tape to the shape of the mold. Heat is applied simultaneously with pressure or in a separate step to achieve high density and strength in the ceramic material. A vacuum atmosphere may be used with the application of pressure and/or heat. One or more layers of surface material such as porcelain or composite resin may be applied to the ceramic to form the dental restoration. The process is useful in the manufacture of dental materials or restorations including but not limited to orthodontic appliances, bridges, space maintainers, tooth replacement appliances, splints, crowns, partial crowns, dentures, posts, teeth, jackets, inlays, onlays, facing, veneers, facets, implants, abutments, cylinders, and connectors. Also provided is a ceramic powder in combination with one or more media materials to form a homogeneous mixture. The mixture may then be used to form a dental restoration as is or may be used to form feedstock such as filaments or wires which are then used to fabricate a dental restoration. The filaments or wires may be used in a fused deposition-modeling machine to build dental restorative materials by computer aided design software.

    摘要翻译: 陶瓷带以其绿色状态提供,使得其可延展并且可成型为用于形成牙修复体的模具,但是不会因应用于模具而破裂或破裂。 可以施加压力以进一步形成或使陶瓷带适应于模具的形状。 在压力下或在单独的步骤中同时施加热量以在陶瓷材料中实现高密度和强度。 在施加压力和/或热量时可以使用真空气氛。 可以将一层或多层表面材料如瓷或复合树脂施加到陶瓷上以形成牙修复体。 该方法可用于牙科材料或修复体的制造,包括但不限于正畸器具,桥梁,空间维护器,牙齿置换器具,夹板,牙冠,部分牙冠,假牙,牙龈,夹克,镶嵌,镶嵌, 贴面,小面,植入物,基台,圆柱体和连接器。还提供了与一种或多种介质材料组合以形成均匀混合物的陶瓷粉末。 然后可以将混合物用于形成牙科修复体,或者可以用于形成原料,例如长丝或线,然后将其用于制造牙科修复体。 细丝或线可以用于熔融沉积建模机器中,以通过计算机辅助设计软件构建牙齿修复材料。

    Lithium disilicate glass ceramics
    5.
    发明授权
    Lithium disilicate glass ceramics 有权
    二硅酸锂玻璃陶瓷

    公开(公告)号:US06517623B1

    公开(公告)日:2003-02-11

    申请号:US09640941

    申请日:2000-08-17

    IPC分类号: C03B27012

    摘要: This invention is directed to lithium disilicate (Li2Si2O5) based glass-ceramics comprising silica, lithium oxide, alumina, potassium oxide and phosphorus pentoxide. The glass-ceramics are useful in the fabrication of single and multi-unit dental restorations (e.g. anterior bridges) made by heat pressing into refractory investment molds produced using lost wax techniques. The glass-ceramics have good pressability, i.e., the ability to be formed into dental articles by heat-pressing using commercially available equipment. In accordance with one embodiment directed to the process of making the glass-ceramics, the compositions herein are melted at about 1200° to about 1600° C., thereafter quenched (e.g., water quenched or roller quenched) or cast into steel molds, or alternately, cooled to the crystallization temperature. The resulting glass is heat-treated to form a glass-ceramic via a one or two step heat-treatment cycle preferably in the temperature range of about 400° to about 1100° C. The resulting glass ceramics are then pulverized into powder and used to form pressable pellets and/or blanks of desired shapes, sizes and structures which are later pressed into dental restorations. Alternatively, instead of forming into pressable pellets or blanks, the pulverized powder is used to form a dental restoration using the refractory die technique or platinum foil technique.

    摘要翻译: 本发明涉及包含二氧化硅,氧化锂,氧化铝,氧化钾和五氧化二磷的二硅酸锂(Li 2 Si 2 O 5)基玻璃陶瓷。 玻璃陶瓷可用于制造通过热压制成使用失蜡技术生产的难熔投资模具制成的单和多单元牙修复体(例如前桥)。 玻璃陶瓷具有良好的压制性,即通过使用市售设备通过热压成型为牙科用品的能力。 根据关于制造玻璃陶瓷的方法的一个实施方案,本文的组合物在约1200℃至约1600℃下熔化,然后骤冷(例如,水淬或辊淬火)或浇铸到钢模具中,或 交替地,冷却至结晶温度。 所得玻璃经过一步或两步热处理循环热处理以形成玻璃陶瓷,优选在约400℃至约1100℃的温度范围内。然后将所得玻璃陶瓷粉碎成粉末,并用于 形成可压制颗粒和/或所需形状,尺寸和结构的坯料,其随后压入牙齿修复体。 或者,代替形成可挤压的颗粒或坯料,使用粉碎的粉末来形成使用耐火模具技术或铂箔技术的牙科修复体。

    High-strength dental restorations
    6.
    发明授权
    High-strength dental restorations 有权
    高强度牙科修复体

    公开(公告)号:US06413660B1

    公开(公告)日:2002-07-02

    申请号:US09330665

    申请日:1999-06-11

    IPC分类号: B32B900

    摘要: High strength ceramic components for use in dental applications are provided with a bonding layer disposed thereon to increase the bonding properties of the ceramic component in order that the ceramic component may better bond to a resin material, ceramic material or composite material. Moreover, the bonding layer provides strength to the ceramic component by forming a compressive layer thereon. The ceramic component may be partially or fully embedded in composite material. The ceramic component is bonded to the composite material either by mechanical means, chemical means or both. The material may be placed directly on the ceramic component. Alternatively, the structural component is coated with a bonding layer to provide adhesion between the composite or like material and the structural component.

    摘要翻译: 在牙齿应用中使用的高强度陶瓷部件设置有设置在其上的粘合层,以增加陶瓷部件的粘合性能,以便陶瓷部件可以更好地结合到树脂材料,陶瓷材料或复合材料。 此外,粘合层通过在其上形成压缩层而为陶瓷部件提供强度。陶瓷部件可以部分或完全嵌入复合材料中。 陶瓷部件通过机械装置,化学方法或两者结合到复合材料上。 该材料可以直接放置在陶瓷部件上。 或者,结构部件涂覆有粘结层以提供复合材料或类似材料与结构部件之间的粘合。

    Dental restorations
    7.
    发明授权
    Dental restorations 有权
    牙科修复

    公开(公告)号:US6155830A

    公开(公告)日:2000-12-05

    申请号:US190475

    申请日:1998-11-12

    摘要: A dental restoration comprising a porcelain composition, comprising a glassy matrix and leucite crystallites embedded therein, and having maturing temperatures in the range from about 680.degree. C. to about 870.degree. C. and CTEs in the range from about 12 to about 15, more preferably in the range from about 12.5 to about 14.5, and most preferably in the range from about 13.1 to about 14.5.times.10.sup.-6 /.degree. C. (measured from 25.degree. C. to 470.degree. C.). The porcelain is used in combination with a ceramic core or metal framework. The ceramic core comprises cubic leucite and exhibits maturing temperatures less than about 1200.degree. C. and CTEs in the range of about 12.5 to about 15.0.times.10.sup.-6 /.degree. C. (measured from 25.degree. C. to 500.degree. C.).

    摘要翻译: 一种牙科修复物,其包括瓷组合物,其包含玻璃质基质和嵌入其中的白云石微晶,并且具有约680℃至约870℃的成熟温度和约12至约15℃的CTE,更多 优选在约12.5至约14.5的范围内,最优选在约13.1至约14.5×10 -6 /℃(从25℃至470℃测量)。 瓷器与陶瓷芯或金属框架结合使用。 陶瓷芯包括立方白云母,并且显示成熟温度低于约1200℃,CTE在约12.5至约15.0×10 -6 /℃的范围内(从25℃至500℃测量)。

    Dental porcelain for titanium and titanium alloys
    8.
    发明授权
    Dental porcelain for titanium and titanium alloys 失效
    钛和钛合金牙科瓷

    公开(公告)号:US5288232A

    公开(公告)日:1994-02-22

    申请号:US949356

    申请日:1992-09-23

    IPC分类号: A61K6/06 C03C8/04 A61C13/08

    摘要: Porcelain compositions suitable for use as porcelain layers on metal base dental restorations have fusion temperatures of about 800.degree. C. and lower. The compositions may be employed as coatings on titanium and titanium alloy bases since the compositions have thermal expansion values close to those of titanium and its alloys. A method is also provided for forming dental restorations with relatively inexpensive and biocompatible metal bases and low fusing dental porcelains.

    摘要翻译: 适合用作金属基牙修复体上的瓷层的瓷组合物具有约800摄氏度和更低的熔融温度。 组合物可以用作钛和钛合金基底上的涂层,因为组合物具有接近钛及其合金的热膨胀值。 还提供了一种用于形成具有相对廉价且生物相容性金属基底和低熔点牙科瓷器的牙科修复体的方法。

    Crystalline alumina orthodontic bracket
    9.
    发明授权
    Crystalline alumina orthodontic bracket 失效
    结晶氧化铝正畸托架

    公开(公告)号:US4639218A

    公开(公告)日:1987-01-27

    申请号:US743851

    申请日:1985-06-12

    CPC分类号: A61C7/12 Y10T29/49568

    摘要: There is disclosed an orthodontic bracket including a base member for attaching to a tooth and a body member extending from the base member. The body member includes walls that define an archwire groove. The walls are made of single crystal alumina. Preferably, the entire bracket is made of single crystal alumina, and most preferably, single crystal alpha-alumina or sapphire.

    摘要翻译: 公开了一种正畸托架,其包括用于附接到牙齿的基部构件和从基部构件延伸的主体构件。 身体构件包括限定弓丝槽的壁。 墙壁由单晶氧化铝制成。 优选地,整个托架由单晶氧化铝制成,最优选为单晶α-氧化铝或蓝宝石。