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目的评价ProTaper机用镍钛锉用于根管治疗术一次法的临床效果。方法选择2008年7月至2010年7月广州医学院第一附属医院口腔科就诊患者206例(206颗患牙),随机分为两组。试验组的106颗患牙用ProTaper机用镍钛锉预备根管,对照组的100颗患牙用不锈钢K型锉预备根管,两组均以常规侧方加压法进行根管充填。拍摄牙片以了解根管数目形态、确定根管工作长度及判断治疗效果,并观察根管预备及充填后1～2周的术后反应。结果试验组患牙根管充填成功率(88.7%)高于对照组患牙(64.0%),试验组患牙根管预备及充填术后急性反应发生率(1.9%)明显低于对照组(14.0%),差异均有统计学意义(P<0.05)。结论 ProTaper机用镍钛锉用于根管治疗术一次法的根管充填成功率较高,且能明显减少术后根尖不良反应的发生,近期疗效可靠。
Objective To evaluate the clinical effect of ProTaper machine nickel-titanium file for primary root canal therapy. Methods From July 2008 to July 2010, 206 cases (206 teeth) in the Department of Stomatology, the First Affiliated Hospital of Guangzhou Medical College were randomly divided into two groups. In the test group, 106 teeth were prepared with a ProTaper machine nickel-titanium filer, and 100 teeth in the control group were prepared with a stainless-steel K-type file. Both groups were instrumented with conventional lateral compression. Tooth taken to understand the number of root canal morphology, determine the length of the root canal and determine the treatment effect, and observe the root canal preparation and postoperative filling 1 to 2 weeks postoperative response. Results The success rate of root canal filling (88.7%) in test group was higher than that in control group (64.0%). The incidence of acute root canal preparation and filling after operation in trial group (1.9%) was significantly lower than that in control group 14.0%), the differences were statistically significant (P <0.05). Conclusion ProTaper machine nickel-titanium file for root canal treatment of root canal filling a success rate is high, and can significantly reduce the occurrence of postoperative apical reaction, the recent curative effect is reliable.