1·Dad needs to have a root canal operation.
爸爸需要做牙根管治疗。
2·Sometimes a tooth with a root canal filling will change color.
牙根管补过的牙有时会变色。
3·Objective: To raise the efficiency of one-visit root canal therapy.
目的：探讨提高根管治疗一次法成功率的方法。
4·It was about as popular as a root canal. (Speaking of the bank bailout).
它就像牙根管一样普及。
5·AIM: To establish an evaluating mode for difficulty in root canal therapy.
前言：目的：建立根管治疗难度的评估模式。
6·This tooth has had a root canal filling. Do you remember when it was done X?
这颗牙齿的根管曾经补过。你记得什么时候补的吗？
7·The dentist reamed out the debris in the course of the root canal treatment.
在进行根管处理过程中，这名牙医铰除了碎屑。
8·AIM: To observe the cleaning effect of calcium hydroxide on root canal wall.
目的：观察氢氧化钙糊剂对根管壁的清洁作用。
9·Objective To study the effect of the left bacteria on the root canal therapy.
目的探讨根管预备后残留细菌对根管治疗预后的影响。
10·CONCLUSION: RVG can obviously improve the satisfaction in root canal therapy.
结论：RVG能明显提高根管治疗术的满意率。