【摘要】 目的:评价显微根尖手术和传统根尖手术治疗难治性慢性根尖周炎的临床疗效。方法:82例难治性慢性根尖周炎患牙随机分为两组,研究组实施显微根尖手术,对照组行传统根尖手术,评价术后6个月及术后1年的临床和影像学结果。结果:研究组术后7 d疼痛程度及疼痛发生率(9.76%)均低于对照组疼痛程度及疼痛发生率(31.71%)(P<0.05),研究组术后6个月、1年复查成功率(92.68%、90.24%)均分别优于对照组(73.17%、70.73%)(P<0.05)。结论:难治性慢性根尖周炎患牙施行显微根尖手术疗效优于行传统根尖手术。更多还原

【Abstract】 Objective:To evaluate the clinical effect of apical micro-surgery and conventional apical surgery on refractory chronic periapical periodontitis.Methods:Eighty-two patients with refractory chronic apical periodontitis were randomly assigned into observational group and control group.Patients in the observational group underwent apical micro-surgery,and those in the control group were treated by conventional apical surgery.The healing results were clinically and radiographically evaluated at the 6^th month and one year after surgery.Results:The occurrence rate of pain（9.76%） was significantly lower in the observational group than in the control group（31.71%） in 7 days（P<0.05）,and the successful rate by reexamination at the 6^th month and one year following surgery was also higher in observational group than in the control group（92.68% vs. 90.24%;73.17% vs. 70.73%,respectively,both P<0.05）.Conclusion:Apical micro-surgery is superior to the conventional apical surgery in the treatment of patients with refractory chronic periapical periodontitis.更多还原