Objective to study the effect of using screw mental post and cast post in post crown restoring respectively and bring into com parison.

目的观察并比较成品金属螺纹桩和铸造金属桩在桩冠修复中的临床效果。

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Conclusion The cast post core and crown, and glass fiber post and resin core and crown treatment is better than refined screw pile and silver amalgam or resin core nucleus.

结论铸造桩核全冠和玻璃纤维桩树脂核全冠治疗效果优于成品螺纹钉桩加银汞合金核或树脂核全冠。

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AimTo evaluate the clinical effect of the restoration using prefabricated screw post, light-cured composite resin core and porcelain-fused-to-metal crown for residue crown and residue root.

目的总结螺纹根管钉、光固化树脂核、金属烤瓷全冠修复残根残冠的临床经验。

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