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1·Thickness of the tooth body; Root canal therapy; Research.

牙体壁厚度；根管疗法；研究。

2·Primary teeth; Root canal therapy; Root canal filling material.

乳牙；根管治疗；根管充填材料。

3·Root canal therapy is an effective method in preserving bad tooth.

根管治疗是保存患牙，避免其早失的一种有效方法。

4·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。

5·Research and application on root canal therapy of laser is going deep.

激光在根管治疗中的研究和应用正不断深入。

6·Use of modern root canal therapy complete relieve of the toothache pain.

运用现代根管治疗术彻底解除牙痛之苦。

7·A previously undocumented complication of root canal therapy is reported.

一个先前无证并发症的根管治疗报告。

8·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。

9·So finished his teeth root canal therapy will usually do teeth protection.

所以做完根管治疗的牙齿通常会做牙套保护。

10·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。