目的：临床观察era冠内覆盖附着体基牙的远期效果，确定ERA冠内覆盖附着体基牙选择的范围。

Objective: to observe ERA crown cover attachment of the long-term effects of teeth to determine ERA crown cover attachment abutment the scope of choice.

youdao

磨牙可以适当放宽基牙选择的适应症，对于牙槽骨吸收至根分歧甚至更低的磨牙在保证牙周卫生、控制炎症的基础上仍可考虑作为固定桥的基牙。

We must use double abutments when the bone of premolar is re- duced. But molar can be selected as abutment even if its bone level was absorbed seriously.

youdao

在进行套筒冠义齿制作之前，要考虑一些因素，其中基牙的选择对于修复体长期的成功有着十分重要的作用。

Before the fabrication of a TCRD, several factors should be taken into consideration. Abutment selection is crucial for the long-term success of the restoration.

youdao