发明名称 |
Fiber filled dental porcelain |
摘要 |
Improved dental porcelain compositions and resultant fused porcelain dental restorations are provided which exhibit enhanced strength properties as compared with conventional porcelains. The fiber-filled porcelain compositions of the invention are supplemented with zirconium oxide ceramic fibers in relatively minor amounts of less than 5% by weight. The reinforcing fibers are advantageously predominantly zirconium oxide, and have a relatively short average length of from about 1/32 to 1/4 of an inch. These fibers are normally randomly oriented and homogeneously dispersed throughout the fiber-filled porcelain composition, in order to give a reinforcing fiber network. A completed restoration in accordance with the invention would typically include a core portion formed of the fiber filled porcelain, with the outer portion of the restoration being fabricated from conventional non-fiber reinforced porcelain. |
申请公布号 |
US4793809(A) |
申请公布日期 |
1988.12.27 |
申请号 |
US19870052843 |
申请日期 |
1987.05.21 |
申请人 |
MYRON INTERNATIONAL, INC. |
发明人 |
SIGLER, MARK A.;SIGLER, TIMOTHY J.;DAY, DELBERT E. |
分类号 |
A61K6/06;(IPC1-7):A61C5/08 |
主分类号 |
A61K6/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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