根管治疗术 RCT ; Root canal treatment ; Root canal therapy ; endodontic therapy
根管治疗术一次法 one-visit root canal therapy ; one-off root canal therapy ; one-visit root canal filling
乳牙根管治疗术 root canal therapy of deciduous teeth
根管治疗术实验 root canal therapy experiment
一次性根管治疗术 one-off root canal treatment
多次性根管治疗术 Multiple-visit root canal treatment
根管治疗术的护理 nursing of root canal therapy
非器械根管治疗技术 noninstrumentation technique ; NIT
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.
方法：综合考虑根管治疗术中操作相关的基本因素和附加因素，设计了难度系数的计算公式。
METHODS:After the primary and additional factors related to technic difficulties in root canal therapy had been wholly considered, the formula for calculation the difficulty coefficient was set up.
运用现代根管治疗术彻底解除牙痛之苦。
Use of modern root canal therapy complete relieve of the toothache pain.
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