感染根管一次性根管治疗的远期疗效

A long-term clinical effect of one-visit endodontic therapy for infected root canals

目的:评价感染根管一次性根管治疗的临床效果和可靠性。方法:选择临床诊断为牙髓坏死、慢性根尖周炎的单根管及多根管患牙142颗,其中80颗患牙在一次治疗内完成根管预备和根管充填,设为一次组;62颗患牙经2次治疗后完成根管充填(第1次治疗后氢氧化钙封药1周),设为二次组。观察2组在根管治疗术前、术后1周的疼痛状况,评价术后2年的治愈率。结果:一次组和二次组术后1周疼痛率差异无统计学意义(P>0.05)。术后2年,一次组的治愈率为92.8%,二次组为90.2%,2组疗效差异无统计学意义(P>0.05)。结论:感染根管一次性根管治疗在术后疼痛和2年治愈率上与两次法差异不大,具有一定的临床可行性。

Objective：To evaluate the clinical effects and reliability of one-visit endodontic therapy for infected root canals. Methods： One hundred and forty-two teeth with dental pulp necrosis or chronic periapical periodontitis were investigated. Eighty teeth （ one-visit group） were treated with one-visit canal obturation, and 62 teeth （two-visit group） were treated with canal obturation after two-visit therapy, the first therapy of which was sealing the root canals using calcium hydroxide. The pre- and post-operative pain in 1 week of two groups were observed, the 2 years cure rate after operation of two groups were evaluated, and the clinical effects of two groups were compared. Results：The differences of pre- and post-operative pain in 1 week of two groups were not statistical significance （P 〉 0.05 ）. The 2 years cure rate after operation of one and two-visit group were 92.8% and 90.2% ,respectively. The differences of curative effects in two groups were not statistically significant （ P 〉 0.05 ）. Conclusions： Compared with two-visit therapy, the postoperative pain and 2 years cure rate of one-visit endodontic therapy for infected root canals has no significant difference and its pain period is short, and which has a certain clinical feasibility.