一次性和多次性根管治疗应用于根尖周炎的临床评价

目的评价根管治疗一次法和多次法对无症状根尖周炎疗效的影响,探讨一次性根管治疗的适应症。方法选取无症状根尖周炎的患牙160颗,分层随机法分为两组,分别采用一次法和多次法完成根管治疗。所有患牙均使用镍钛机动根管器械预备,牙胶冷侧方加压法充填根管。比较两组术后疼痛发生情况,根据患者主观症状、临床表现和术前术后X线片评价疗效。结果一次法和多次法在术后疼痛、根管治疗效的差异上没有统计学意义。结论一次性根管治疗应用于无症状根尖周炎的患牙是可行的,但要注意控制适应症。

Effectiveness of singleversus multiple-visit endodontic treatment of teeth with apical periodontitis

Objectives To investigate the effectiveness of one-appointment versus multiple-appointment endodontic therapy for a-symptomatic teeth with apical periodontitis. Methods 160 asymptomatic teeth with apical periodontitis were assigned into two groups with stratified randomization for root canal treatment. One group was treated with one-appointment method; the other group was treated with multiple-appointment method. The incidence and degree of postoperative pain after root canal treatment in the two groups were re-corded. The effectiveness of endodontic therapy was evaluated according to the radiographs before and after operation. Results There were not statistically significant differences in the incidence of postoperative pain and the effectiveness of endodontic therapy between two groups. Conclusions One-appointment endodontic therapy is feasible in selected cases of teeth with apical periodontitis.