那是空的根管(牙髓室)。
遗漏根管是磨牙治疗失败的重要原因之一。
Missing of the root canal was one of the important causes for endodontic failure in molar.
扩大针进入根管角度及根管长度因根而异。
The angles and length of root canal depended on different roots.
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.
目的：研究单根的下颌第二磨牙的根管形态。
Objective: to investigate the root canal anatomy of one-rooted mandibular second molars.
补了以后就可以把根管封住，不再受到感染。
The filling will seal the canal and prevent it from becoming infected again. .
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.
在进行根管处理过程中，这名牙医铰除了碎屑。
The dentist reamed out the debris in the course of the root canal treatment.
逐步后退法；弯曲根管；根管预备；根管充填。
Step-back technique; Curving root canal; root canal preparation; root canal condensation.
目的对比和评价戊二醛用于根管消毒的临床效果。
Objective To compare and evaluate effect of medication of the root canal with glutaraldehyde .
如果是需要根管手术的脓肿，它不会自己好起来。
'If it's an abscess that would require a root canal, it won't get better by itself.'
方法用两种根管充填材料对乳前牙进行根管治疗。
Method Using two different root canal filling materials for deciduous teeth.
目的：定量研究弯曲根管预备过程中根管的偏移。
AIM: To evaluate root canal deviation during instrumentation of curved root canals.
这颗牙齿的根管曾经补过。你记得什么时候补的吗？
This tooth has had a root canal filling. Do you remember when it was done X?
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.
目的评价全自动根管长度测定仪测定根管长度的准确性。
Objective to evaluate the accuracy of the fully automatic root canal measuring device.
一次性根管治疗；多次根管治疗；急性牙髓炎；治疗效果。
Once root canal therapy; Repeated root canal therapy; Acute pulpitis; Curative effect.
目的通过不同方法测量根管长度，指导根管治疗的准确性。
Objective To study the accuracy of root-canal treatment with different measuring methods.
假如你这颗还痛的话，我们还是可以进行根管治疗把它保住。
If you get a toothache in that tooth we can still save it by doing a root canal treatment.
但有资料表明下颌切牙的根管解剖形态较为复杂，变异较多。
However, some research data show that mandibular incisors' root canal anatomy is comparatively complex, and root canal system has many variations.
目的探讨腰神经根管狭窄合并椎间盘突出症的诊断、手术方法。
Objective To discuss the diagnosis and surgical techniques for lumbar intervertebral disc herniation complicated with stenosis of spinal nerve root canal.
前言： 目的：了解新型聚氨酯类液体根充材料的根管密封性能。
Objective:To investigate the root canal sealing ability of the novel polyurethane liquid root canal filling material.
目的：探讨上颌第一前磨牙的根管解剖形态对根管治疗术难度的影响。
PURPOSE: to investigate the effect of root canal anatomy in maxillary first premolars on root canal treatment difficulty.
目的评价根管显微镜和超声联合应用技术对疑难根管处理的临床应用效果。
Objective To evaluate the use of dental operating microscope and ultrasonic instruments in treating difficult root canal.
结论：根管治疗的失败与牙位(牙类型和牙位置)、根管弯曲度和钙化度密切相关。
CONCLUSION: the tooth type or tooth position, root curvature and calcification have significantly influenced the outcome of root canal treatment.
有侧、副根管。 与前人的研究比较后发现，不同种族间的根管解剖形态确有差别。
These findings showed that the root canal anatomy of mandibular incisors had racial difference.
有侧、副根管。 与前人的研究比较后发现，不同种族间的根管解剖形态确有差别。
These findings showed that the root canal anatomy of mandibular incisors had racial difference.
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