感染根管一次性根管治疗的短期疗效分析

目的观察分析感染根管一次性根管治疗的术后反应和短期治愈情况，评价一次性根管治疗的临床可行性。方法临床诊断为牙髓坏死和急、慢性根尖周炎的患牙在一次治疗内完成根管预备和根管充填，共100例，与42例两次疗程（疗程间氢氧化钙根管封药）完成根管治疗的类似患牙进行临床效果比较分析。临床观察的主要指标有患者自评的疼痛率、临床评定的疼痛率、术后6个月X线片和临床评定的治愈率。结果患者术后自评疼痛率一次组为60．0％，两次组为57．1％，差异无统计学意义（P〉0．05）；术后1周临床评定疼痛率一次组为43．0％，两次组为52．4％，差异无统计学意义（P〉0．05）。两次疗程的第二次治疗增加了第二次激惹疼痛的机会。术后6个月一次组治愈率为67．9％，两次组为61．5％，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近期治愈率上与两次疗程相同，但疼痛期较短，具有临床可行性。

A short-term clinical study of one-visit endodontic treatment for infected root canals

Objective To clinically evaluate the postoperative pain level and short-term healing of one-visit endodontic treatment for infected root canals.Methods 100 infected cases were included in one- visit root canal therapy group and 42 infected cases in two-visit group using calcium hydroxide as an interappointment medicament.A comparison of the clinical results was done between the two groups.The main assessments included postoperative pain evaluated by patients and by clinical examination,and the six months' healing response.Results There was no statistically significance between the groups regarding pain 7 days after operation(one visit 60.0%,two visit 57.1%,P>0.05)and six months' healing response(one visit 67.9%,two visit 61.5%,P>0.05).The pain in the one-visit group was quickly relaxed postoperatively,as the pain in the two-visit group was given a rise because of the second treatment. Conclusions One-visit endodontic treatment for infected root canals has the same clinical efficacy as two- visit in regarding to postoperative pain level and short-term healing.