Objective: To study the effect of DMG polysiloxane impression material in the restoration of the post and core crown.

目的：探讨采用DMG枪式硅橡胶印模材料制取桩核根管印模的应用及护理配合体会。

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Objective to investigate the effect of restoration of large defects or complete defects with multi-post-core baked porcelain veneer crown or full metal crown.

目的观察临床使用铸造金属多根桩全冠修复磨牙牙冠大面积缺损的效果。

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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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