step-back technique
常见例句
- 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。 - Conclusion It is better apical sealing ability in root canals prepared by crown-down technique than step-back technique.
结论短期内冠根向预备技术比逐步后退技术成形的根管更有利于根管充填后根尖孔的密封。 - METHODS: 79 single canal extracted anterior teeth were instrumented with step-back technique and then randomly divided into three group.
方法：选择79颗单直根管离体前牙，经逐步后退法预备根管。 返回 step-back technique