目的:对手用Pro Taper根管扩大系统联合不锈钢K锉在弯曲根管治疗中的应用展开对比分析。方法:将84例84牙患者分为治疗组和对照组,各42例42牙,比较两组患者临床治疗效果。结果:两组患者牙根管充填满意率、牙根管预备和充填术后急性反应发生率分别为90.48%、2.38%和61.90%、19.05%,比较两组患者牙根管充填满意率、牙根管预备和充填术后急性反应发生率,差异有统计学意义(P<0.05)。结论:在治疗弯曲根管临床上手用Pro Taper根管扩大系统联合不锈钢K锉效果较为理想。 OBJECTIVE: To compare and analyze the application of Pro Taper root canal expansion system combined with stainless steel K-file in the treatment of curved root canal. Methods: Eighty-four patients with 84 teeth were divided into treatment group and control group, with 42 cases of 42 teeth in each group. The clinical effects were compared between the two groups. Results: The satisfaction rates of root canal filling, root canal preparation and post-filling acute reaction were 90.48%, 2.38% and 61.90%, 19.05% respectively in two groups. The dental root canal filling satisfaction rate, The incidence of acute response after root canal preparation and filling was statistically different (P <0.05). Conclusion: The clinical application of Pro Taper root canal expansion system combined with stainless steel K-file in the treatment of curved root canal is ideal.