一次根管治疗术与两次根管治疗术术后短期临床疗效的比较

目的比较一次根管治疗术与两次根管治疗术术后短期临床疗效，并分析不同因素对疗效的影响。方法将96例需行根管治疗的患者随机分成2组，分别进行一次根管治疗术（一次治疗组）和两次根管治疗术（两次治疗组），并在术后的1、3d和1周进行随访，记录其疼痛情况，术后3个月行影像学检查，评估分析其短期疗效。结果一次治疗组和两次治疗组在术后短期疼痛和影像学检查方面的差异均无统计学意义；患者的性别及患牙术前根尖周指数（PAI）对根管治疗的术后疗效有一定影响，而患者年龄、患牙解剖牙位、患牙牙髓情况（未出现根尖周病损）的差异对根管治疗术术后疗效影响意义不大。结论一次性根管治疗在术后短期的疼痛发生率较低，在临床可根据实际情况推广应用；患者性别及术前PAI会影响根管治疗的术后疗效。

Comparison of short period postoperative clinical efficacy between single-visit root canal treatment and two-visit root canal treatment

Objective To compare short period postoperative clinical efficacy between single-visit root canal treatment and two-visit root canal treatment and analyze different impact of different factors on curative effect. Methods Ninty- six patients who needed root canal treatment, were randomly divided into two groups. One group took single-visit root canal treatment, while the other group took two-visit root canal treatment. Patients were followed up for the first 3 days and 1 week after treatment for pain and taken image examination after 3 months. According to the postoperative pain and imaging manifestations, we evaluated the postoperative clinical efficacy, then using SPSS system for data analysis and statistics. Results There was no significant difference between single-visit root canal treatment group and two-visit root canal treatment group in clinic efficacy and postoperative pain. Patients＇ gender, as well as preoperative tooth periapical index（PAI）, had statistical significance on the effect of root canal treatment after operation, while the patients＇ age, tooth position, tooth anatomy of tooth pulp condition（no periapical lesion） showed no statistical significance. Conclusion Single-visit root canal treatment had lower postoperative pain incidence, and can be applied in clinic in some cases. Patients＇ gender and preoperative PAI had influence on the efficacy of root canal treatment.