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公开(公告)号:US5452219A
公开(公告)日:1995-09-19
申请号:US219804
申请日:1994-03-29
IPC分类号: A61C13/00 , G05B19/4099 , G06F19/00
CPC分类号: G05B19/4099 , A61C13/0004 , G05B2219/35062 , G05B2219/35098 , G05B2219/35216 , G05B2219/35217 , G05B2219/37047 , G05B2219/37275 , G05B2219/45167 , Y02P90/265
摘要: A method for the making of a tooth mold which includes the steps of scanning the surface of a model of a tooth to obtain data on the three-dimensional surface locations of the model, processing the data in a CAD/CAM computer, and using the processed data to fabricate a tooth mold. The scanning step involves subjecting a rotating tooth model to radiant energy from a laser beam, receiving and translating reflections of the radiant energy into electronic signals, and digitizing the signals into data of the three-dimensional surface locations of the tooth model. The processing step involves translating the data, editing the data, creating a three-dimensional surface pattern of the tooth model, evaluating the surface pattern by visual analysis and comparison to known geometric values of the tooth model, and creating a tooth path program. Finally, the fabricating step involves using the tooth path program to direct a machine to mill a tooth mold and using the same program to direct a machine to finish-polish the mold.
摘要翻译: 一种用于制造牙模的方法,包括以下步骤:扫描牙齿模型的表面以获得关于模型的三维表面位置的数据,在CAD / CAM计算机中处理数据,并使用 处理数据以制造牙模。 扫描步骤涉及使旋转的齿模型经受来自激光束的辐射能量,将辐射能的反射接收和转换成电子信号,并将信号数字化为牙齿模型的三维表面位置的数据。 处理步骤包括翻译数据,编辑数据,创建牙齿模型的三维表面图案,通过目视分析和与已知的牙齿模型的几何值进行比较来评估表面图案,以及创建牙齿程序。 最后,制造步骤包括使用牙齿程序来引导机器铣削牙齿模具并使用相同的程序来引导机器对模具进行抛光。
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公开(公告)号:US06843654B1
公开(公告)日:2005-01-18
申请号:US09567702
申请日:2000-05-10
申请人: Andrew T. C. Liu
发明人: Andrew T. C. Liu
IPC分类号: A61K6/083 , A61K6/093 , C08F255/02 , C08F265/06 , A61C13/087
CPC分类号: C08F265/06 , A61K6/083 , C08F255/02 , C08F2/02 , C08L23/06 , C08L33/00
摘要: A dental composition comprising self-lubricating particles and formed into a dental tooth. The invention provides a dental tooth formed from a composition which includes polymeric matrix material and particles of ultrahigh molecular weight polyethylene having a particle size less than 500 microns, and a weight average molecular weight greater than 1,000,000 g/mole chemically bonded to the matrix material and the composition formed into an aesthetic dental tooth. The tooth has an outer face, and at least one of the particles is smeared over the outer face.
摘要翻译: 一种包含自润滑颗粒并形成牙齿的牙科用组合物。 本发明提供了一种由组合物形成的牙齿,该组合物包括聚合物基质材料和粒径小于500微米的超高分子量聚乙烯颗粒,和大于1,000,000克/摩尔的重均分子量与基质材料化学键合, 该组合物形成为美学牙齿。 齿具有外表面,并且至少一个颗粒被污染在外表面上。
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公开(公告)号:US06384107B2
公开(公告)日:2002-05-07
申请号:US09804940
申请日:2001-03-14
申请人: Andrew T. C. Liu
发明人: Andrew T. C. Liu
IPC分类号: A61C13087
CPC分类号: A61K6/0008 , A61K6/083 , A61K6/093 , C08F255/02 , C08F265/06 , C08F2/02 , C08L51/085
摘要: Dental composition, product and process using a silicon containing abrasion resistant material. The dental products formed are abrasion resistant and self-lubricating across their entire cross sections. Dental compositions useful for forming dental products in accordance with the invention preferably includes an ethylenically unsaturated silane. The composition is formed into a dental prosthesis, such as an artificial tooth, inlay, onlay, facing, crown or bridge.
摘要翻译: 牙科成分,产品和工艺使用含硅耐磨材料。 所形成的牙科产品在整个横截面上是耐磨和自润滑的。 用于形成根据本发明的牙科产品的牙科组合物优选包括烯属不饱和硅烷。 该组合物形成牙科假体,例如人造牙,镶嵌,镶嵌,面,冠或桥。
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公开(公告)号:US6139322A
公开(公告)日:2000-10-31
申请号:US333727
申请日:1999-06-15
申请人: Andrew T. C. Liu
发明人: Andrew T. C. Liu
IPC分类号: A61K6/083 , A61K6/093 , C08F255/02 , C08F265/06 , A61C13/087
CPC分类号: C08F265/06 , A61K6/083 , C08F255/02
摘要: A denture includes a tooth and denture base. The tooth includes an interpenetrating polymer network polymeric matrix and at least 0.1 percent by weight of self-lubricating particles having a particle size less than 500 microns effectively bonded to and distributed in the polymeric matrix. The denture has a bond strength between the tooth and the denture base of at least 4,480 psi.
摘要翻译: 义齿包括牙齿和义齿基座。 牙齿包括互穿聚合物网络聚合物基质和至少0.1重量%的具有小于500微米的粒度的自润滑颗粒,其有效地结合并分布在聚合物基质中。 义齿具有至少4,480psi的牙齿和假牙基部之间的粘结强度。
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公开(公告)号:US4375360A
公开(公告)日:1983-03-01
申请号:US223980
申请日:1981-01-12
摘要: Methanol fuels are modified by the addition of materials which provide required lubricity and protection for engine parts while retaining compatability with the methanol fuel. Methanol fuel is methanol itself or any fuel containing a majority of methanol by volume. In addition, these additives help lubricate cylinder walls and decrease wear and corrosion.
摘要翻译: 甲醇燃料通过添加为发动机部件提供所需润滑性和保护的材料而改进,同时保持与甲醇燃料的相容性。 甲醇燃料是甲醇本身或含有大部分甲醇的燃料。 此外,这些添加剂有助于润滑气缸壁并减少磨损和腐蚀。
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