There are some health problems that, when _____ in time, can become bigger ones later on.

A．not treated

B．not being treated

C．not to be treated

D．not having been treated

修复体未能恢复倾斜牙和移位牙正常的外形会引发

A．修复体脱落

B．龈缘炎

C．基牙松动

D．咬合痛

E．修复体松动