发明名称 |
Präfabrizierte, konische Wurzelstifte aus Zirkon-Dioxid zum Aufbau artifizieller Kronenstümpfe und zur Stabilisierung frakturgefährdeter, devitaler Zähne |
摘要 |
A pre-fabricated, conical root plug for building artificial crown stumps, for strengthening crowns or stabilising broken teeth consists of densely sintered zirconium dioxide. The plug has a structured surface, and consists mainly of zirconium dioxide with addn. of yttrium and/or magnesium dioxide. It is made by mechanical, esp. machine, working of unsintered zirconium oxide blanks, followed by release and sintering. Opt., it is made by injection casting a zirconium dioxide powder contg. a binder, pref. a polyoxymethylene, into a mould, followed by release and sintering. |
申请公布号 |
DE4339250(C2) |
申请公布日期 |
1997.04.24 |
申请号 |
DE19934339250 |
申请日期 |
1993.11.18 |
申请人 |
PAFFRATH, JUERGEN, 67069 LUDWIGSHAFEN, DE |
发明人 |
PAFFRATH, JUERGEN, 67069 LUDWIGSHAFEN, DE |
分类号 |
A61C5/08 |
主分类号 |
A61C5/08 |
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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