Root canal preparation with hand use stainless steel file.
手用不锈钢锉根管预备。
Root canal preparation with nickel titanium alloy engine file.
镍钛合金机用锉根管预备。
Objective To explore the effective method for C-shaped root canal preparation.
目的探索预备下颌第二磨牙C形根管的有效方法。
Objective To analyze causes of periapical inflammation after root canal preparation.
对根管预备后出现根尖炎反应的原因进行分析。
Step-back technique; Curving root canal; root canal preparation; root canal condensation.
逐步后退法；弯曲根管；根管预备；根管充填。
RESULTS: The incidence of pain after root canal preparation and fillings was 7.83% and 10.43% respectively.
结果：乳牙根管预备后疼痛的发生率为7.83%，根充后疼痛的发生率为10 . 4 3%。
ObjectiveTo evaluate the clinical effects of two kinds of nickel-titanium instruments in root canal preparation.
目的评价使用两种镍钛器械预备磨牙根管的临床疗效。
Ultrasonic irrigation and syringe irrigation were applied respectively in each group during the root canal preparation.
目的评价根管超声冲洗对根管预备术后反应及根充后侧支根管充填率的影响。
Conclusion the combined application of sonic and hand file instrumentation was conduced to improve the effect of root canal preparation.
结论声波器械和手用器械的联合应用，有助于提高根管预备的效果。
Digital periapical film can quick understand the root canal preparation, root canal length and root canal filling accurately, surpassing conventional periapical film.
数字化牙片可迅速、准确地了解根管预备、根管长度及根管充填情况，优于传统牙片。
Objective: To compare the clinical effects after root canal preparation with hand use stainless steel file, nickel titanium alloy engine file and root canal ultrasonic file.
目的：比较手用不锈钢锉，镍钛合金机用锉和超声根管锉在根管预备后的临床效果。
Root canal preparation was carried out at two stages: first to size 30, then to size 40. The root canal curvatures before and after preparation as well as preparation time were measured.
分别预备到主尖锉30号和40号，对各组器械预备前后的根管弯曲度和预备时间进行测量。
Abstract: Objective: to explore the influence on micro leakage from root tip and tooth root's bending strength by different combinations of root canal preparation and filling technology.
摘要【摘要】目的探讨几种根管预备方法和充填技术组合对根尖微渗漏和牙根抗折强度的影响。
Abstract: Objective: to explore the influence on micro leakage from root tip and tooth root's bending strength by different combinations of root canal preparation and filling technology.
摘要【摘要】目的探讨几种根管预备方法和充填技术组合对根尖微渗漏和牙根抗折强度的影响。
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