公开(公告)号：US20050209082A1

公开(公告)日：2005-09-22

申请号：US10973233

申请日：2004-10-26

申请人： Elke Apel ,  Wolfram Holand ,  Christian van't Hoen ,  Urs Bolle ,  Volker Rheinberger

发明人： Elke Apel ,  Wolfram Holand ,  Christian van't Hoen ,  Urs Bolle ,  Volker Rheinberger

IPC分类号： A61C13/083 ,  A61K6/027 ,  A61K6/06 ,  C03C10/00 ,  C03C10/04 ,  C03C10/02

CPC分类号： C03C10/0036 ,  A61K6/0215 ,  A61K6/0235 ,  A61K6/024 ,  A61K6/025 ,  A61K6/0255 ,  A61K6/026 ,  A61K6/0273 ,  A61K6/033 ,  C03C4/0021

摘要： Apatite glass ceramic which contains at least one glass phase and at least one apatite phase and is characterized in that at least one of the apatite phases is a phosphate- and fluorine-free siliceous oxyapatite phase.

摘要翻译： 含有至少一个玻璃相和至少一个磷灰石相的磷灰石玻璃陶瓷，其特征在于至少一个磷灰石相是无磷酸盐和无氟的硅质氧磷灰石相。

公开(公告)号：US20050115460A1

公开(公告)日：2005-06-02

申请号：US10936605

申请日：2004-09-08

申请人： Richard Petticrew

发明人： Richard Petticrew

IPC分类号： A61C13/20 ,  A61K6/06 ,  B28B1/24 ,  B28B5/04 ,  B32B9/00 ,  A61C13/00 ,  A61C13/08

CPC分类号： A61C13/20 ,  A61K6/0005 ,  A61K6/0008 ,  A61K6/0094 ,  A61K6/0235 ,  A61K6/024 ,  A61K6/025 ,  A61K6/0273 ,  B28B1/24 ,  B28B5/04

摘要： The present invention is concerned with a process for the formation of dental restorations from glass-ceramic materials, and the resulting dental restorations. In this invention, a dental restoration is prepared by placing a glass-ceramic material in a heat-pressure deformable crucible. Heat is then applied to the crucible in order to bring the glass-ceramic material to working range at temperatures above its liquidus temperature. The crucible in which the glass-ceramic material is placed has heat-pressure deformation properties which are matched to the working temperature of the glass-ceramic material being heated. The heat deformation properties of the crucible must be such that when the glass-ceramic material in the crucible is in the working range, the crucible is heat-pressure deformable without rupturing. Once the glass-ceramic material is heated to its working temperature, the crucible is brought into contact with a mold having a preformed cavity therein, the cavity being in the shape of the desired dental restoration. As the distance between the heated glass-ceramic material and the mold is decreased, the crucible is deformed to form a seal with the mold, thereby facilitating the injection of the molten glass-ceramic material into the mold cavity. An interactive seal between the crucible and the mold may be provided for. The composite process may be carried out in a vacuum. The resulting dental restoration has superior optical esthetic and strength properties. The invention further includes the heat-pressure deformable crucible. The invention includes dental restorations which are formed from particular lithium-disilicate glass-ceramics. In addition to forming dental restorations by the process of this invention, the dental restorations may be milled.

摘要翻译： 本发明涉及从玻璃陶瓷材料形成牙科修复物的方法以及由此产生的牙科修复体。 在本发明中，通过将玻璃陶瓷材料放置在热压可变形坩埚中来制备牙科修复体。 然后将热量施加到坩埚上，以便使玻璃陶瓷材料在高于其液相线温度的温度下工作。 其中放置玻璃 - 陶瓷材料的坩埚具有与被加热的玻璃 - 陶瓷材料的工作温度相匹配的热压变形特性。 坩埚的热变形性能必须使得当坩埚中的玻璃 - 陶瓷材料处于工作范围内时，坩埚可以在不破裂的情况下进行热压变形。 一旦玻璃陶瓷材料被加热到其工作温度，坩埚就与其中具有预制腔的模具接触，该空腔是所需的牙科修复体的形状。 当加热的玻璃 - 陶瓷材料和模具之间的距离减小时，坩埚变形以与模具形成密封，从而便于将熔融玻璃陶瓷材料注入模腔中。 可以提供坩埚和模具之间的交互式密封。 复合方法可以在真空中进行。 所得牙科修复物具有优异的光学美学和强度特性。 本发明还包括热压可变形坩埚。 本发明包括由特定的二硅酸锂玻璃陶瓷形成的牙科修复体。 除了通过本发明的方法形成牙齿修复体之外，牙科修复体可以被研磨。

公开(公告)号：US20040121894A1

公开(公告)日：2004-06-24

申请号：US10646171

申请日：2003-08-22

发明人： Dmitri Brodkin

IPC分类号： C03C010/10 ,  C03C014/00 ,  C03C008/22

CPC分类号： A61K6/0005 ,  A61K6/0088 ,  A61K6/0094 ,  A61K6/024 ,  A61K6/025 ,  A61K6/026 ,  A61K6/0273 ,  C03C3/087 ,  C03C11/00 ,  C03C27/02

摘要： A pressable dental ceramic comprising a mixture of glass and glass-ceramic frits. A refractory filler is also combined with the frits. The dental ceramic contains an amount of leucite less than about 35 percent by weight. Other additives may be included such as pigments, opacifying agents and fluorescing agents. The dental ceramic comprises a cellular-like microstructure comprised of glassy regions surrounded by clusters of leucite crystals distributed around those glassy regions forming a cellular three-dimensional network.

摘要翻译： 一种可压制牙科陶瓷，其包含玻璃和玻璃陶瓷玻璃料的混合物。 耐火填料也与玻璃料组合。 牙科陶瓷含有少于约35重量％的白云石的量。 可以包括其它添加剂，例如颜料，遮光剂和荧光剂。 牙科陶瓷包括由形成细胞三维网络的玻璃状区域周围分布的白云石晶体簇包围的玻璃状区域构成的细胞样微结构。

公开(公告)号：US06527846B1

公开(公告)日：2003-03-04

申请号：US09763168

申请日：2001-02-16

申请人： Gerhard Beham

发明人： Gerhard Beham

IPC分类号： C03C1000

CPC分类号： C03C10/0018 ,  A61K6/0005 ,  A61K6/0008 ,  A61K6/0094 ,  A61K6/0235 ,  A61K6/025 ,  A61K6/026 ,  A61K6/0273 ,  C04B35/19

摘要： The invention relates to a glass-ceramic material for dental restoration having a high crystalline leucite content. The leucite crystals are needle- or rod-shaped, have a thickness of between 0.3 and 1.5 micrometers and are between 7.5 and 20 micrometers in length. Said glass-ceramic material is substantially semi-transparent and contains, in% by weight: between 67 and 71% SiO2, between 8 and 12% Al2O3, between 3 and 5% Na2O, between 8 and 10% K2O, between 1 and 3% CaO, between 0.2 and 2% BaO, between 0.5 and 2% CeO2, between 0.2 and 1% TiO2 and between 0.5 and 2% B2O3. The above glass-ceramic material presents improved fracture strength and offers new indications for the use of full ceramic materials in dental technology, notably metal-free dental restoration.

摘要翻译： 本发明涉及一种具有高结晶白云母含量的牙科修复用玻璃陶瓷材料。 白云石晶体是针状或棒状的，其厚度为0.3至1.5微米，长度为7.5至20微米。 所述玻璃 - 陶瓷材料基本上是半透明的，以重量％计含有67至71％的SiO 2，8至12％的Al 2 O 3，3至5％的Na 2 O，8至10％的K 2 O之间，1至3 ％CaO，0.2至2％BaO，0.5至2％CeO 2，0.2至1％TiO 2和0.5至2％B 2 O 3之间。 上述玻璃陶瓷材料提供了改善的断裂强度，并提供了在牙科技术中使用全陶瓷材料的新迹象，特别是无金属牙科修复体。

公开(公告)号：US6155830A

公开(公告)日：2000-12-05

申请号：US190475

申请日：1998-11-12

申请人： Dmitri Brodkin ,  Carlino Panzera ,  Paul Panzera ,  Jana Pruden ,  Lisa M. Kaiser ,  Richard A. Brightly

发明人： Dmitri Brodkin ,  Carlino Panzera ,  Paul Panzera ,  Jana Pruden ,  Lisa M. Kaiser ,  Richard A. Brightly

IPC分类号： A61K6/06 ,  C03C8/02 ,  C03C8/14 ,  C03C10/00 ,  A61C13/08

CPC分类号： C03C8/02 ,  A61K6/0005 ,  A61K6/0008 ,  A61K6/0094 ,  A61K6/0215 ,  A61K6/025 ,  A61K6/026 ,  C03C10/0018 ,  C03C8/14

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）。

公开(公告)号：US5948129A

公开(公告)日：1999-09-07

申请号：US736247

申请日：1996-10-24

申请人： Toru Nonami ,  Tatsuji Sano ,  Sadami Tsutsumi ,  Tetsuo Urabe ,  Masahiro Fukuma

发明人： Toru Nonami ,  Tatsuji Sano ,  Sadami Tsutsumi ,  Tetsuo Urabe ,  Masahiro Fukuma

IPC分类号： A61L27/00 ,  A61C13/20 ,  A61K6/06 ,  A61L27/10 ,  C03B32/02 ,  C03C3/00 ,  C03C3/076 ,  C03C3/078 ,  C03C8/02 ,  C03C10/00 ,  C03B11/00

CPC分类号： C03C4/0021 ,  A61C13/20 ,  A61K6/0044 ,  A61K6/0215 ,  A61K6/0235 ,  A61K6/024 ,  A61K6/025 ,  A61K6/0276 ,  A61L27/10 ,  C03C10/0009 ,  C03C3/078 ,  C03C8/02 ,  Y10S623/901

摘要： A living tissue replacement of crystallized glass having bioaffinity and mechanical strength is briefly obtained simply by pressure molding or machining without using a special equipment. A glass material having a softening point below its crystallization temperature and exhibiting viscous flow at temperatures below its melting point is heated at a temperature above its Tg and pressed at the temperature to mold to a desired shape, thereby manufacturing a living tissue replacement such as a dental crown. Molding can be done under a pressure of up to 20 MPa.

摘要翻译： 具有生物亲和力和机械强度的结晶玻璃的活组织置换简单地通过加压成型或加工简单地获得，而不使用特殊设备。 软化点低于其结晶温度并且在低于其熔点的温度下显示粘性流动的玻璃材料在高于其Tg的温度下加热并在该温度下被压制成模具至期望的形状，从而制造生物体组织置换物 牙冠。 成型可以在高达20MPa的压力下进行。

公开(公告)号：US5288232A

公开(公告)日：1994-02-22

申请号：US949356

申请日：1992-09-23

申请人： Carlino Panzera ,  Arun Prasad

发明人： Carlino Panzera ,  Arun Prasad

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

CPC分类号： A61K6/0017 ,  A61K6/0005 ,  A61K6/0008 ,  A61K6/0235 ,  A61K6/024 ,  A61K6/025 ,  A61K6/04 ,  A61K6/046 ,  C03C8/04 ,  Y10T428/24942

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。

公开(公告)号：US5080589A

公开(公告)日：1992-01-14

申请号：US453977

申请日：1989-12-20

申请人： Agneta E. Oden ,  Hans T. Rostvall

发明人： Agneta E. Oden ,  Hans T. Rostvall

IPC分类号： A61C5/77 ,  A61C13/00 ,  A61K6/027 ,  A61K6/06

CPC分类号： A61C13/0003 ,  A61C5/002 ,  A61C5/10 ,  A61K6/0008 ,  A61K6/0017 ,  A61K6/0073 ,  A61K6/0094 ,  A61K6/0215 ,  A61K6/0235 ,  A61K6/024 ,  A61K6/025 ,  A61K6/027 ,  A61K6/0276

摘要： The present invention relates to an artificial tooth crown composed of a prefabricated coping designed for artificial strength densely sintered ceramic material with powder metallurgical methods. The tooth crown is given the final shape by a veneer material attached to the external surface of the coping by e.g., firing or dental porcelain. The tooth crown can be made in less manufacturing time with an increase in the strength and the accuracy to shape.

摘要翻译： 本发明涉及一种人造牙冠，其由设计用于人造或天然邻接的预制构架构成。 应力优选由具有粉末冶金方法的高强度致密烧结陶瓷材料制成。 通过例如通过附接到紧固件的外表面的单板材料将齿冠赋予最终形状。 烧牙牙瓷。 根据本发明的方法制造牙冠基本上减小了齿冠的制造时间，同时强度和形状精度增加。

公开(公告)号：US5057018A

公开(公告)日：1991-10-15

申请号：US561357

申请日：1990-08-01

申请人： Rafael L. Bowen

发明人： Rafael L. Bowen

IPC分类号： A61C5/00 ,  A61K6/00 ,  A61K6/04 ,  A61K6/06 ,  A61K6/083

CPC分类号： A61C5/00 ,  A61K6/0005 ,  A61K6/0067 ,  A61K6/0091 ,  A61K6/0215 ,  A61K6/023 ,  A61K6/0235 ,  A61K6/024 ,  A61K6/025

摘要： Means to decrease the effects of polymerization shrinkage, increase stiffness, decrease the coefficient of thermal expansion to a greater extent than previously possible, and improve the durability of composite restorations by use of improved microcrystalline glass inserts. Shaped pieces of assorted sizes within the range of one-half to 10 millimeters are heat treated to produce microcrystallinity in which the crystalline phases, such as for example stuffed beta quartz, beta-eucryptite, beta-spodumene solid solutions, and keatite and/or other phases, give the microcrystalline glass pieces exceptionally low coefficients of thermal expansion and other desirable properties. Compositions and heat treatment conditions are given to provide the insert pieces with the desired translucencies/opacities, colors, and shades, to match a range of those properties found in teeth. Treatment of the inserts with an organofunctional silane with or without an additional resin coating provides for chemical bonding with composite resins. Cavities in teeth are partially filled with unhardened composite material, and microcrystalline glass inserts of appropriate size, shape and appearance are pressed into the cavity so that the insert constitutes as much as possible of the finished restoration. The composite containing the insert is polymerized either by light, chemical, or combined cure mechanisms, and contoured and polished.

摘要翻译： 降低聚合收缩效果，增加刚度，减少热膨胀系数比以前更大的方法，并通过使用改进的微晶玻璃插入物来提高复合材料修复体的耐久性。 热处理在一半至10毫米范围内的各种尺寸的成形片，以产生微晶，其中结晶相，例如填充的β石英，β-锂钇石，β-锂辉石固溶体和酮钙石和/或 其他相，给予微晶玻璃片特别低的热膨胀系数和其它所需的性能。 给出组合物和热处理条件以提供具有期望的透光性/不透明度，颜色和色调的插入片，以匹配在牙齿中发现的那些性质的范围。 用有机官能硅烷处理带有或不带有附加树脂涂层的插入物提供与复合树脂的化学键合。 齿中的腔部分地填充有未硬化的复合材料，并且具有适当尺寸，形状和外观的微晶玻璃插入件被压入空腔中，使得插入件尽可能地构成完成的修复体。 包含插入物的复合材料通过光，化学或组合固化机理聚合，并进行轮廓和抛光。

公开(公告)号：US5030097A

公开(公告)日：1991-07-09

申请号：US574534

申请日：1990-08-28

申请人： Richard G. Tobey

发明人： Richard G. Tobey

IPC分类号： A61C13/083 ,  A61K6/00 ,  A61K6/06

CPC分类号： A61K6/06 ,  A61C13/0835 ,  A61K6/025 ,  A61K6/046

摘要： There is provided a mixture which preferably is a colloidal suspension of finely divided particles of a rare-earth oxide such as cerium oxide in a liquid. The liquid may be all water but also may include other materials such as acetic acid, 1,3-butanediol, methanol. The mixture is used as a wetting and suspending agent for opaque and build-up dental porcelains to primarily overcome the problem of discoloration of the porcelains when used with metal substrates made of dental alloys containing silver, and also to make the porcelains easier to handle and to work with.

摘要翻译： 提供了一种混合物，其优选是液体中稀土氧化物如氧化铈的细碎颗粒的胶体悬浮液。 液体可以全部为水，但也可以包括其它材料，例如乙酸，1,3-丁二醇，甲醇。 该混合物用作不透明和积聚牙用陶瓷的润湿和悬浮剂，主要克服了当与含有银的牙科合金制成的金属基材一起使用时，瓷器变色的问题，并且还使得瓷器更容易处理， 跟...共事。