乳牙；根管治疗；根管充填材料。
Primary teeth; Root canal therapy; Root canal filling material.
这颗牙齿需要做根管治疗。
前言：目的：建立根管治疗难度的评估模式。
AIM: To establish an evaluating mode for difficulty in root canal therapy.
激光在根管治疗中的研究和应用正不断深入。
Research and application on root canal therapy of laser is going deep.
所以做完根管治疗的牙齿通常会做牙套保护。
So finished his teeth root canal therapy will usually do teeth protection.
在根管治疗中，冲洗消毒是一个重要的步骤。
Irrigation and sterilization is an important step in the treatment of canals.
结论单纯采用根管治疗可以治愈较大的根尖囊肿。
Conclusion Simply use root tube could treat larger apical cyst.
根管治疗是保存患牙，避免其早失的一种有效方法。
Root canal therapy is an effective method in preserving bad tooth.
根管治疗后的牙齿要能被保留，根管治疗才有意义。
Teeth after root canal therapy can be retained, root canal treatment can be meaningful.
何谓根管治疗？
目的探讨根管预备后残留细菌对根管治疗预后的影响。
Objective To study the effect of the left bacteria on the root canal therapy.
目的：根管消毒剂是根管治疗术的三大研究方向之一。
Objective: root canal disinfectant is one of the three research directions of root canal therapy.
根管治疗是目前牙髓病和根尖周病最有效的治疗方法。
Root canal therapy is currently the most effective treatment for pulpal and periapical diseases.
根管治疗的根尖止点控制包括确定工作长度、工作宽度以及根尖区的根管形态等。
It's very important to control the apical stop when performing root canal therapy.
然而，上述材料均不能满足一些特殊情况下对根管修复治疗的需要。
However, none of these are ideal for the special conditions and requirements of root repair.
然而，上述材料均不能满足一些特殊情况下对根管修复治疗的需要。
However, none of these are ideal for the special conditions and requirements of root repair.
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