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    • 2. 发明公开
    • Organic and inorganic composite filler
    • FüllstoffMaterialen mit organischen und anorganischen Stoffen
    • EP2168561A1
    • 2010-03-31
    • EP09012413.2
    • 2009-09-30
    • GC Corporation
    • Fusejima, FutoshiKaga, Shinji
    • A61K6/027A61K6/04A61K6/083
    • A61K6/0088A61K6/0091A61K6/083C08L33/10C08L33/08C08L33/00
    • This is to provide an organic and inorganic composite filler to yield excellent surface smoothness similar to that of a natural tooth and to cause low polymerization shrinkage when used for a dental restoration material composite, and to acquire a dental restoration material composite having high X-ray imaging property and high mechanical strength. The organic and inorganic composite filler used for a dental restoration material is produced by curing and pulverizing a (meth)acrylate compound including 50 to 80% by weight of a glass powder having a maximum particle diameter of 5µm or less, an average particle diameter from 0.05 to 2µm, and X-ray imaging property, and 10 to 40% by weight of a metal compound having an average particle diameter from 0.005 to 0.3µm and X-ray imaging property, where the (meth)acrylate compound includes 90% by weight of both the glass powder and the metal compound at the maximum. The organic and inorganic composite filler has preferably an average particle diameter from 10 to 30µm.
    • 这是提供一种有机和无机复合填料,以产生与天然牙齿相似的优异的表面平滑度,并且当用于牙科修复材料复合材料时导致低聚合收缩,并且获得具有高X射线的牙科修复材料复合材料 成像性能和机械强度高。 用于牙齿修复材料的有机和无机复合填料通过固化和粉碎包含50至80重量%的最大粒径为5μm或更小的玻璃粉末,(甲基)丙烯酸酯化合物的平均粒径 0.05〜2μm,X射线成像性,10〜40重量%的平均粒径为0.005〜0.3μm的金属化合物和X射线成像性,其中(甲基)丙烯酸酯化合物的含量为90% 玻璃粉末和金属化合物的重量最大。 有机无机复合填料的平均粒径优选为10〜30μm。
    • 4. 发明公开
    • Dental restorative material composition
    • Materialzusammensetzung zur Zahnwiederherstellung
    • EP1905414A2
    • 2008-04-02
    • EP07018022.9
    • 2007-09-13
    • GC Corporation
    • Fusejima, FutoshiJimbo, NaokoKaga, Shinji
    • A61K6/083
    • A61K6/0276A61K6/083C08L33/00
    • An objective of the present invention is to provide a dental restorative material composition using an organic-inorganic composite filler having excellent surface smoothness like a natural tooth and low polymerization shrinkage. The dental restorative material composition has excellent X-ray contrast imaging property and similar transparency to that of a natural tooth, where the transparency is not varied before and after the composition is hardened. The dental restorative material composition includes (a) a (meth)acrylate monomer, (b) an organic-inorganic composite filler having an average particle diameter of 5 to 50µm, which is made by mixing a (meth) acrylate monomer and a fine particle filler having an average primary particle diameter of 0.005 to 0.3µm and having X-ray impermeability and hardening and pulverizing the mixture, (c) a fine particle filler having an average primary particle diameter of 0.005 to 0.04µm, and (d) a photopolymerization initiator.
    • 本发明的目的是提供一种使用有机无机复合填料的牙齿修复材料组合物,其具有优异的表面平滑度,如天然牙齿和低聚合收缩率。 牙科修复材料组合物具有优异的X射线对比成像性能和与天然牙齿相似的透明度,其中在组合物硬化之前和之后透明度不变。 牙修复材料组合物包含(a)(甲基)丙烯酸酯单体,(b)平均粒径为5〜50μm的有机 - 无机复合填料,其通过混合(甲基)丙烯酸酯单体和微粒 平均一次粒径为0.005〜0.3μm,具有X射线不渗透性和硬化粉碎混合物的填料,(c)平均一次粒径为0.005〜0.04μm的微粒填料,(d)光聚合 引发剂。