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1. 发明授权

US06872076B2 Dental bridges comprising fiber reinforced frameworks with fiber or particulate reinforced veneers 有权
标题翻译：牙桥包括纤维增强框架，纤维或颗粒增强单板
公开(公告)号：US06872076B2
公开(公告)日：2005-03-29
申请号：US10002421
申请日：2001-10-25
申请人： Ajit Karmaker , Arun Prasad , Gregg Daskalon
发明人： Ajit Karmaker , Arun Prasad , Gregg Daskalon
IPC分类号： A61K6/027 , A61K6/083 , C08K3/34 , C08K7/02 , A61C13/87
CPC分类号： A61K6/083 , A61C13/26 , A61K6/0073 , A61K6/087 , C08K3/34 , C08K7/02
摘要： A dental restoration comprising a fiber reinforced composite framework and one or more of a randomly dispersed, fiber-filled veneer, a soft particulate filled composite veneer having a strain to failure greater than that of FRC framework and/or a brittle particulate filled composite veneer having a strain to failure value less than that of the FRC framework. The fiber filled veneer is advantageously placed beneath the framework, the soft veneer is advantageously pled where tensile stresses are expected to occur, while the brittle particulate filled veneer is placed where compressive stresses are expected to occur.
摘要翻译：一种牙科修复物，其包括纤维增强复合框架和一个或多个随机分散的纤维填充的单板，具有大于FRC框架的破坏应变的软颗粒填充复合单板和/或具有脆性颗粒填充的复合单板，其具有失败价值的压力小于FRC框架的压力。纤维填充的单板有利地放置在框架下方，有利的是，在预期发生拉伸应力的地方，柔性单板被放置，而将脆性颗粒填充的单板置于预期发生压缩应力的地方。

2. 发明授权

US06827576B2 Fiber reinforced composite post 有权
标题翻译：纤维增强复合桩
公开(公告)号：US06827576B2
公开(公告)日：2004-12-07
申请号：US10184353
申请日：2002-06-26
申请人： Ajit Karmaker , Arun Prasad
发明人： Ajit Karmaker , Arun Prasad
IPC分类号： A61C508
CPC分类号： A61C13/30 , A61C5/35
摘要： A dental post comprising a rod fabricated of fiber-reinforced composite material. The rod comprises a plurality of frustoconical sections arranged coaxially along the longitudinal axis of the rod. Preferably the rod has consistent width along the longitudinal axis wherein the frustoconical sections each have the same tapered width and same length. The number of frustoconical units per rod can vary. The frustoconical sections may vary in shape. Moreover, the rod may include a channel therein extending along the longitudinal axis thereof. The rod may also include one or more grooves extending along the surface thereof.
摘要翻译：一种牙柱，包括由纤维增强复合材料制成的杆。杆包括沿着杆的纵向轴线同轴布置的多个截头圆锥形部分。优选地，杆沿着纵向轴线具有一致的宽度，其中截头圆锥形部分各自具有相同的锥形宽度和相同的长度。每个棒的截头圆锥体单位的数量可以变化。截头圆锥体部分的形状可能不同。此外，杆可以包括沿其纵向轴线延伸的通道。杆还可以包括沿着其表面延伸的一个或多个凹槽。

3. 发明授权

US06345984B2 Prefabricated components for dental appliances 有权
标题翻译：牙科器具预制部件
公开(公告)号：US06345984B2
公开(公告)日：2002-02-12
申请号：US09344089
申请日：1999-06-25
申请人： Ajit Karmaker , Martin L. Schulman , Arun Prasad
发明人： Ajit Karmaker , Martin L. Schulman , Arun Prasad
IPC分类号： A61C1312
CPC分类号： A61C13/0003 , A61C5/007 , A61C5/30 , A61C13/0022
摘要： Ready-to-use preshaped, prefabricated cured structural components are prepared in a variety of shapes and sizes to be used in the fabrication of dental appliances. Preferably the structural components are fabricated of a fiber-reinforced composite material or a particulate-filled composite material comprising fibers or particulate filler impregnated with a polymeric matrix. The polymeric matrix is partially or fully cured to the point of sufficient hardness to provide a ready-to-use structural component for use in the fabrication of dental appliances such as orthodontic retainers, bridges, space maintainers, tooth replacement appliances, splints, crowns, partial crowns, dentures, posts, teeth, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, cylinders, and connectors.
摘要翻译：准备使用的预成型的预制固化结构部件制备成各种形状和尺寸以用于牙科器具的制造。优选地，结构部件由纤维增强复合材料或填充有聚合物基质的纤维或颗粒填料的颗粒填充复合材料制成。聚合物基质部分或完全固化到足够的硬度点，以提供用于制造牙科器具的即用型结构组分，例如正畸保持器，桥梁，空间维持器，牙齿置换器具，夹板，牙冠，部分冠，义齿，柱，牙齿，夹克，镶嵌，镶嵌，面板，贴面，刻面，植入物，基台，圆柱体和连接器。

4. 发明授权

US06186791B1 Fiber reinforced composite post 有权
标题翻译：纤维增强复合桩
公开(公告)号：US06186791B1
公开(公告)日：2001-02-13
申请号：US09280760
申请日：1999-03-29
申请人： Ajit Karmaker , Arun Prasad
发明人： Ajit Karmaker , Arun Prasad
IPC分类号： A61C508
CPC分类号： A61C13/30 , A61C5/35
摘要： A dental post comprising a rod fabricated of fiber-reinforced composite material. The rod comprises a plurality of frustoconical sections arranged coaxially along the longitudinal axis of the rod. Preferably the rod has consistent width along the longitudinal axis wherein the frustoconical sections each have the same tapered width and same length. The number of frustoconical units per rod can vary. The frustoconical sections may vary in shape. Moreover, the rod may include a channel therein extending along the longitudinal axis thereof. The rod may also include one or more grooves extending along the surface thereof.
摘要翻译：一种牙柱，包括由纤维增强复合材料制成的杆。杆包括沿着杆的纵向轴线同轴布置的多个截头圆锥形部分。优选地，杆沿着纵向轴线具有一致的宽度，其中截头圆锥形部分各自具有相同的锥形宽度和相同的长度。每个棒的截头圆锥体单位的数量可以变化。截头圆锥体部分的形状可能不同。此外，杆可以包括沿其纵向轴线延伸的通道。杆还可以包括沿着其表面延伸的一个或多个凹槽。

5. 发明授权

US06186790B1 Prefabricated components for dental appliances 失效
标题翻译：牙科器具预制部件
公开(公告)号：US06186790B1
公开(公告)日：2001-02-13
申请号：US09190806
申请日：1998-11-12
申请人： Ajit Karmaker , Martin L. Schulman , Arun Prasad
发明人： Ajit Karmaker , Martin L. Schulman , Arun Prasad
IPC分类号： A61C1312
CPC分类号： A61C5/30 , A61C5/007 , A61C13/0003 , A61C13/0022
摘要： Ready-to-use preshaped, prefabricated cured structural components are prepared in a variety of shapes and sizes to be used in the fabrication of dental appliances. Preferably the structural components are fabricated of a fiber-reinforced composite material comprising fibers impregnated with a polymeric matrix. The polymeric matrix is partially or fully cured to the point of sufficient hardness to provide a ready-to-use structural component for use in the fabrication of dental appliances such as orthodontic retainers, bridges, space maintainers, tooth replacement appliances, splints, crowns, partial crowns, dentures, posts, teeth, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, cylinders, and connectors.
摘要翻译：准备使用的预成型的预制固化结构部件制备成各种形状和尺寸以用于牙科器具的制造。优选地，结构部件由包含浸渍有聚合物基质的纤维的纤维增强复合材料制成。聚合物基质部分或完全固化到足够的硬度点，以提供用于制造牙科器具的即用型结构组分，例如正畸保持器，桥梁，空间维持器，牙齿置换器具，夹板，牙冠，部分冠，义齿，柱，牙齿，夹克，镶嵌，镶嵌，面板，贴面，刻面，植入物，基台，圆柱体和连接器。

6. 发明授权

US07331789B2 Method of manufacturing dental posts, obturators and restorations 失效
标题翻译：制造牙柱，闭孔器和修复体的方法
公开(公告)号：US07331789B2
公开(公告)日：2008-02-19
申请号：US10774231
申请日：2004-02-06
申请人： Ajit Karmaker , Arun Prasad
发明人： Ajit Karmaker , Arun Prasad
IPC分类号： A61C5/08
CPC分类号： A61C13/30 , A61C5/50
摘要： Dental posts and obturators are manufactured herein having a filling material applied to the apical end of the post and obturator such that the adherence strength between the filling material and the post or obturator is very high. The filling material is adhered to the post and obturator by applying one or more corona or plasma treatments to the surface of the post and obturator and thereafter applying the filling material to the surface-treated post and obturator. The surfaces of the post and obturator are modified by the corona or plasma treatments to create a highly adherent surface for the application of the filling material thereto.Dental restorations are manufactured herein wherein a veneer is applied to a dental substructure and the adherence strength of the veneer to the dental substructure is very high. The veneer is adhered to the dental substructure by applying one or more corona or plasma treatments to the surface of the dental substructure and thereafter applying the veneer to the dental substructure. The surface of the dental substructure is modified by the corona or plasma process to create a highly adherent surface for the application of the veneer thereto.
摘要翻译：本文制造牙柱和闭孔器，其具有施加到柱的顶端和填塞器的填充材料，使得填充材料和柱或填塞器之间的粘附强度非常高。通过对柱和填塞器的表面施加一个或多个电晕或等离子体处理，然后将填充材料施加到经表面处理的柱和填塞器上，将填充材料粘附到柱和闭孔器上。通过电晕或等离子体处理修改柱和闭孔器的表面以产生用于将填充材料施加到其上的高粘附表面。牙科修复体在本文中制造，其中将单板应用于牙齿底部结构，并且单板对牙齿底部结构的粘附强度非常高。通过对牙齿底部结构的表面施加一个或多个电晕或等离子体处理，然后将单板施加到牙齿底部结构上，将单板粘附到牙齿底部结构上。通过电晕或等离子体处理来改变牙齿底部结构的表面以产生用于将薄板应用于其中的高粘附表面。

7. 发明授权

US07252508B2 Endodontic obturator 有权
标题翻译：牙根管闭塞
公开(公告)号：US07252508B2
公开(公告)日：2007-08-07
申请号：US10319243
申请日：2002-12-13
申请人： Ajit Karmaker , Arun Prasad
发明人： Ajit Karmaker , Arun Prasad
IPC分类号： A61C5/02
CPC分类号： A61C5/50
摘要： An endodontic obturator comprising a shaft section and a filler section fabricated of the same material and formed as a single unit. A handle section may be included and may be formed integrally with the shaft section and filler section as a single unit, or may be fabricated separately and attached to the single unit containing the shaft section and the filler section. An endodontic post is provided having a post section and a filler section fabricated of the same matrix material to provide a cohesive bond between the two sections.
摘要翻译：一种牙根管闭塞器，其包括由相同材料制成并形成为单个单元的轴部分和填充部分。可以包括手柄部分，并且可以作为单个单元与轴部分和填充部分一体地形成，或者可以单独地制造并附接到包含轴部分和填充部分的单个单元。提供了根管柱，其具有由相同基质材料制成的柱部分和填充部分，以在两部分之间提供内聚键。

8. 发明申请

US20060208393A1 Fiber-reinforced composites for dental materials 有权
标题翻译：用于牙科材料的纤维增强复合材料
公开(公告)号：US20060208393A1
公开(公告)日：2006-09-21
申请号：US11385595
申请日：2006-03-21
申请人： Ajit Karmaker , Arun Prasad
发明人： Ajit Karmaker , Arun Prasad
IPC分类号： B29C41/00
CPC分类号： B29C70/20 , A61C13/30 , A61K6/083 , A61K6/087 , B29C70/222
摘要： A formable fiber-reinforced composite having an inner core of fiber-reinforced composite surrounded by a sheath of fiber-reinforced composite material. The inner core of fiber-reinforced composite has a plurality of longitudinally extending fibers disposed in a resin matrix material and formed in the shape of a rod and the outer sheath has woven or braided fibers impregnated with a resin matrix material in the form of a sleeve. In a method of manufacturing the formable fiber-reinforced composite material herein a rod is provided or fabricated of longitudinally extending fibers disposed in a resin matrix material. The resin matrix material is cured to provide a solid rod. A sheath of woven fibers is placed around the rod. The rod with the sheath thereon is treated to remove the resin matrix material. Treatment may be in the form of heat or chemical solution. If a chemical solvent is used, the fibers may be additionally heated. The resulting rod and sheath comprise longitudinally extending fibers enveloped by a sheath. Thereafter, the rod and sheath are impregnated with a resin matrix material. The resin is left uncured or partially cured to provide a formable fiber-reinforced composite material. The formable material may be furthered flattened to provide flattened strips of material or may be left in the shape of circular rods of material.
摘要翻译：一种可成形的纤维增强复合材料，其纤维增强复合材料的内芯由纤维增强复合材料的护套包围。纤维增强复合材料的内芯具有多个纵向延伸的纤维，其设置在树脂基质材料中并形成为棒状，外护套具有浸渍有套筒形式的树脂基质材料的编织或编织纤维。在这里制造可成形的纤维增强复合材料的方法中，由设置在树脂基质材料中的纵向延伸的纤维提供或制造棒。固化树脂基质材料以提供实心棒。编织纤维的鞘被放置在杆周围。处理具有其上的护套的杆以除去树脂基体材料。治疗可以是热或化学溶液的形式。如果使用化学溶剂，则可以额外加热纤维。所得到的杆和鞘包括由护套包围的纵向延伸的纤维。此后，用树脂基体材料浸渍棒和鞘。树脂未固化或部分固化以提供可成形的纤维增强复合材料。可成型材料可以进一步被压平以提供扁平的材料条，或者可以保持为圆形材料棒的形状。

9. 发明授权

US06362250B1 Dental bridges comprising fiber reinforced frameworks with fiber or particulate reinforced veneers 失效
标题翻译：牙桥包括纤维增强框架，纤维或颗粒增强单板
公开(公告)号：US06362250B1
公开(公告)日：2002-03-26
申请号：US09270853
申请日：1999-03-17
申请人： Ajit Karmaker , Arun Prasad , Gregg Daskalon
发明人： Ajit Karmaker , Arun Prasad , Gregg Daskalon
IPC分类号： A61K608
CPC分类号： A61K6/083 , A61C13/26 , A61K6/0073 , A61K6/087 , C08K3/34 , C08K7/02
摘要： A dental restoration comprising a fiber reinforced composite framework and one or more of a randomly dispersed, fiber-filled veneer, a soft particulate filled composite veneer having a strain to failure greater than that of FRC framework and/or a brittle particulate filled composite veneer having a strain to failure value less than that of the FRC framework. The fiber filled veneer is advantageously placed beneath the framework, the soft veneer is advantageously pled where tensile stresses are expected to occur, while the brittle particulate filled veneer is placed where compressive stresses are expected to occur.
摘要翻译：一种牙科修复物，其包括纤维增强复合框架和一个或多个随机分散的纤维填充的单板，具有大于FRC框架的破坏应变的软颗粒填充复合单板和/或具有脆性颗粒填充的复合单板，其具有失败价值的压力小于FRC框架的压力。纤维填充的单板有利地放置在框架下方，有利的是，在预期会发生拉伸应力的地方放置柔软的单板，同时将脆性颗粒填充的单板放置在预期发生压缩应力的地方。

10. 发明授权

US6039569A Fiber-reinforced dental structures and method of manufacture thereof 有权
标题翻译：纤维增强牙科结构及其制造方法
公开(公告)号：US6039569A
公开(公告)日：2000-03-21
申请号：US130911
申请日：1998-08-07
申请人： Arun Prasad , Ajit Karmaker , Elie Zammarieh , Grant P. Day
发明人： Arun Prasad , Ajit Karmaker , Elie Zammarieh , Grant P. Day
IPC分类号： A61C5/00 , A61C5/08 , A61C13/00 , A61C13/12 , A61C13/225
CPC分类号： A61C13/0003 , A61C13/26 , A61C5/08 , A61C5/00
摘要： The present invention relates to unique dental structures such as bridges and crowns. The bridge comprises a structural component such as a fiber reinforced polymeric matrix bar disposed within interproximal cavities located in the distal occlusal surface of the mesial abutment tooth and the mesial occlusal surface of the distal abutment tooth. A structural wrap and/or occlusal strip comprising fibers embedded within a polymeric matrix can also be employed where the wrap is attached to one or both abutment teeth and one or both sides of the structural component. The occlusal strip is attached to the occlusal surface of both of the abutment teeth, spans the edentulous area, and is attached to the top surface of the structural component. Meanwhile, the crown comprises a wrap disposed around and adhered to a damaged natural tooth and may have an occlusal strip adhered to the occlusal surface of the natural tooth where the wrap is disposed around the edge of the occlusal strip. In both embodiments a pontic can then be built up around the structures to form the final product.
摘要翻译：本发明涉及独特的牙科结构，例如桥和牙冠。桥梁包括结构部件，例如设置在位于中间基牙的远端咬合面内的邻间腔内的纤维增强聚合物基质棒和远侧基牙的中间咬合面。也可以使用包含嵌入在聚合物基质内的纤维的结构包裹和/或咬合条，其中所述包裹附接到所述结构部件的一个或两个邻接齿以及一侧或两侧。咬合条附着在两个邻接牙齿的咬合面上，跨越缺牙区，并附着在结构部件的上表面。同时，冠部包括设置在损伤的天然牙齿周围并附着到损伤的天然牙齿上的包裹物，并且可以具有粘附到天然牙齿的咬合面的咬合条，其中包裹物设置在咬合带的边缘周围。在这两个实施例中，然后可以围绕结构建立一个音调以形成最终产品。

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