Objective: To observe the clinical result of the method of combined impression used in post and core PFM crowns.

目的：观察琼脂类和藻酸盐类印模材联合印模法在桩核烤瓷冠中的应用效果。

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But ask anyone who knew him and they'll likely tell you that Morrie Schwartz made more of an impression on them then Michael Jordan, Bill Gates and Jodie Foster combined.

CNN: Tuesdays with Morrie