Abstract: Objective: To investigate the clinical effects of iRoot BP on repairing perforation of pulp floor. Methods: Forty patients with perforation of pulp floor were selected in this study and randomly divided into observation group (n=20) and control group(n=20). The patients in observation group were repaired with iRoot BP, while the patients in control group were repaired with mineral trioxide (MTA). The success ratio of the reparation of patients in 2 groups 3 months, 6 months, 12 months after treatment were compared, as well as the incidence of complications and satisfaction rate of repair treatment of 2 groups were recorded and compared. Results: The success ratio of the reparation of patients in observation group 3 months and 6months were significantly higher than control group (P<0.05); There was no significant difference about success ratio of the reparation 12 months after treatment of 2 groups (P>0.05). None of the patients in observation group suffered occlusal pain and loose teeth, and the complication rate of observation group was 0.00%, which was significantly lower than control group (20.00%, P<0.05). The satisfaction rate of repair treatment of observation group was 95.00%, which was significantly higher than control group (65.00%, P<0.05). Conclusions: The treatment effects of iRoot BP for treating perforation of pulp floor are better than MTA, the safety and satisfaction rate of repair treatment are all higher, so it is worthy of clinical application.

Key words: iRoot BP, Mineral trioxide (MTA), Perforation of pulp floor

摘要： 目的:探讨iRoot BP修复治疗髓室底穿孔的临床效果。方法:40例髓室底穿孔患者以随机数字表法分组,观察组与对照组各20例,观察组采用iRoot BP修复穿孔,对照组采用三氧化矿物(MTA)修复穿孔,比较两组患者治疗后3个月、6个月、12个月的修复成功率,记录两组并发症发生率和修复治疗满意率。结果:观察组治疗后3个月、6个月的治疗修复成功率明显高于对照组,组间比较差异均有统计学意义(P<0.05);两组治疗后12个月的治疗修复成功率比较,差异无统计学意义(P>0.05)。观察组无患者发生咬合疼痛和患牙松动,并发症发生率为0.00%,明显低于对照组的20.00%,组间比较差异有统计学意义（P<0.05）。观察组修复治疗满意率为95.00%,明显高于对照组的65.00%,组间比较差异有统计学意义（P<0.05）。结论:iRoot BP治疗髓室底穿孔的效果优于MTA,安全性高且能提升患者的治疗修复满意率,值得临床推广应用。

关键词: iRoot BP, 三氧化矿物(MTA), 髓室底穿孔