目的比较不同包埋材料和包埋方法对铸造钴铬合金全冠收缩的影响。

Objective To compare the influence of different investment materials and methods on the cast shrinkage of full crowns made of Co-Cr alloys.

youdao

结论不同包埋材料对铸造收缩影响不同，无圈包埋时的铸造收缩小于有圈包埋。

Conclusion the influence of different investment materials on the cast shrinkage is different. The cast shrinkage invested without ring is smaller than that with ring.

youdao