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    • 1. 发明授权
    • Translucent wear resistant dental enamel material and method
    • 半透明耐磨牙釉质材料及方法
    • US06262142B1
    • 2001-07-17
    • US09351532
    • 1999-07-12
    • Xiuling WangJohn C. SubelkaSteven R. JefferiesPaul D. HammesfahrPaul A. Silver
    • Xiuling WangJohn C. SubelkaSteven R. JefferiesPaul D. HammesfahrPaul A. Silver
    • A61K608
    • A61K6/083A61C2202/01C08L33/00
    • A method and material for forming translucent wear resistant dental enamel and the dental enamel material formed which has an opacity less than 50 percent and a localized wear volume loss of less than 0.025 mm3. The dental enamel material is formed from a polymerizable matrix and a filler. The material for forming translucent wear resistant dental enamel having an opacity less than 50 percent, a localized wear volume loss of less than 0.025 mm3 and a localized extended wear volume loss of less than 0.04 mm3, comprises a polymerizable matrix forming liquid and inorganic filler particles. The liquid comprises polymerizable material having a first refractive index. The filler comprising a first plurality of particles having a second refractive index. The first plurality of particles being formed from a low and a high median particle size plurality of particles. The low median particle size plurality of particles having a median particle size between 0.1 and 1.0 micrometers. The high median particle size plurality of particles having a median particle size between 1 and 10 micrometers. The first refractive index being within 5 percent of said second refractive index. More preferably the low median particle size plurality of particles have a median particle size between 0.3 and 0.7 micrometers, and said high median particle size plurality of particles have a median particle size between 1 and 2 micrometers. More preferably the filler further comprises a second plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers.
    • 形成半透明耐磨牙釉质和形成的牙釉质材料的方法和材料,其不透明度小于50%,局部磨损体积损失小于0.025mm 3。 牙釉质材料由可聚合基质和填料形成。 用于形成不透明度小于50%,局部磨损体积损失小于0.025mm 3和局部延长的磨损体积损失小于0.04mm 3的半透明耐磨牙釉质的材料包括形成可聚合基质的液体和无机填料颗粒 。 液体包括具有第一折射率的可聚合材料。 填料包括具有第二折射率的第一多个颗粒。 第一多个颗粒由低和高中值粒度的多个颗粒形成。 中值粒径小的多个中等粒度的中值粒径在0.1和1.0微米之间。 高中值粒度的多个颗粒具有1至10微米的中值粒度。 第一折射率在所述第二折射率的5%以内。 更优选地,低中值粒径的多个颗粒的中值粒径在0.3和0.7微米之间,并且所述高中值粒度的多个颗粒具有在1和2微米之间的中值粒度。 更优选地,填料还包含平均粒度为约0.01至约0.04微米的第二多个填料颗粒。
    • 6. 发明授权
    • Dental compounds, compositions, products and methods
    • 牙科化合物,组合物,产品和方法
    • US5981620A
    • 1999-11-09
    • US953705
    • 1997-10-17
    • Paul D. HammesfahrKewang LuPaul A. Silver
    • Paul D. HammesfahrKewang LuPaul A. Silver
    • A61C5/06A61K6/00A61K6/083C07C69/54C07C69/92A61K6/08C07C322/00
    • C07C69/92A61C5/064A61C5/066A61K6/0017A61K6/0023A61K6/083A61K6/0835
    • The invention provides polymerizable dental, compounds, compositions, including the compounds and products for mixing the compositions and methods of using the compositions. Aryl acid compounds are provided in accordance with the invention. The compositions include at least one polymerizable aryl acid compound, an effective amount of a polymerization initiator, and at least 10 percent by weight of ceramic, metal and/or metal oxide filler particles having a particle size less than 500 microns. The dental products of the invention include a polymerizable composition in an enclosure having at least two chambers separated by a wall adapted to be ruptured prior to or during mixing of the composition. Compositions of the invention are preferred for use in these enclosures. Core build up material including a polymerizable acid containing compound is used to support dental crowns and adhere them to teeth in accordance with the invention.
    • 本发明提供可聚合的牙科,化合物,组合物,包括用于混合组合物的化合物和产品以及使用该组合物的方法。 根据本发明提供了芳酸化合物。 组合物包括至少一种可聚合芳基化合物,有效量的聚合引发剂和至少10重量%的具有小于500微米的粒度的陶瓷,金属和/或金属氧化物填料颗粒。 本发明的牙科产品包括在外壳中的可聚合组合物,其具有至少两个由适于在组合物混合之前或混合期间被破裂的壁隔开的腔室。 本发明的组合物优选用于这些外壳。 根据本发明,使用包含可聚合酸的化合物的核心堆积材料来支撑牙冠并将其粘附到牙齿上。