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    • 2. 发明授权
    • Prosthetic teeth and bones
    • 假牙和骨头
    • US4230455A
    • 1980-10-28
    • US966233
    • 1978-12-04
    • Tsuneo HidakaMasahide InoueMasatomi Ebihara
    • Tsuneo HidakaMasahide InoueMasatomi Ebihara
    • C04B35/80A61C8/00A61F2/00A61F2/28A61F2/30A61K6/033A61L27/00A61L27/42A61L27/46C04B35/447A61C13/08
    • A61C8/0012A61F2/28A61F2/30965A61L27/425A61L27/46C04B35/447A61F2002/30009A61F2002/30909A61F2250/0028A61F2310/00293A61L2430/02
    • Prosthetic teeth and bones having superior affinity for the living body and having a compression strength of about 4.times.10.sup.-3 kg/cm.sup.2 or higher and a flexural strength of about 2.7.times.10.sup.3 kg/cm.sup.2 or higher, which comprise a composite material comprising(a) a sufficiently fine powder having an average particle size of about 2 .mu.m or less comprising at least 50% by weight of Ca.sub.10 (PO.sub.4).sub.6 (OH).sub.2 and not more than about 50% by weight of at least one additive selected from the group consisting of Ca.sub.3 (PO.sub.4).sub.2, AlPO.sub.4, Al.sub.2 O.sub.3, AlF.sub.3, SiO.sub.2, Mg(PO.sub.4).sub.2, and the fluorides, chlorides and oxides of Li, Na, K, Mg and Ca, and(b) at least one fibrous material having the coefficient of thermal expansion nearly equal to or slightly lower than that of the hydroxy-apatite selected from the group consisting of fibers, fine filaments and metal whiskers, ceramics or glass,said fibrous material being present at least 50 .mu.m inside the surface of the prosthetic teeth and bones, and said composite material being cold compression-molded and then sintered.
    • 具有对活体具有优异亲和力并具有约4×10 -3 kg / cm 2或更高的抗压强度和约2.7×10 3 kg / cm 2或更高的弯曲强度的假体牙齿和骨骼,其包含复合材料,其包含(a) 平均粒度约2μm或更小的足够细的粉末包含至少50重量%的Ca10(PO4)6(OH)2和不超过约50重量%的至少一种选自以下的添加剂: 由Ca3(PO4)2,AlPO4,Al2O3,AlF3,SiO2,Mg(PO4)2以及Li,Na,K,Mg和Ca的氟化物,氯化物和氧化物组成,以及(b)至少一种纤维材料, 热膨胀系数几乎等于或略低于选自纤维,细丝和金属晶须,陶瓷或玻璃的羟基磷灰石的热膨胀系数,所述纤维材料在表面内至少有50微米 假牙和骨骼,并且所述复合材料是冷压缩体 然后烧结。