逐步后退法(step-back technique): 可用于轻中度弯曲或直根管的根管预备方法,先用小器械从根尖开始预备,逐渐用较大的器 械向冠方后退预备,以避免标准技术在弯...
基于124个网页-相关网页
Passive step-back technique 被动逐步后退法
modified step-back technique 改良逐步后退法
back sliding step technique 背向滑步技术
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。
The technique of back EMF induction in BLDC motor is analyzed, the "virtual neutral point" method and the technique of "3-step" start are introduced.
主要分析了反电动势感应方法,并阐述了虚拟中点法和三段式起动技术。
应用推荐