Step-back technique; Curving root canal; root canal preparation; root canal condensation.

逐步后退法；弯曲根管；根管预备；根管充填。

youdao

Step-back technique; Curving root canal; root canal preparation; root canal condensation.

逐步后退法；弯曲根管；根管预备；根管充填。

youdao