慢性根尖周炎一次性根管治疗的临床疗效观察
sodium hypochlorite and EDTA and obturated by means of cold lateral condensation technique. Calcium hydroxide paste was used as an intracanal medication remained at least one week in multiple-visit group. 1 day, 7days and 30 days after root canal obturation, patients were reviewed for pain experience, 1 year follow-up was performed using clinical and radiographic examinations. The results were analyzed statistically. Results: The incidence of post-obturation pain after 1 day in single-visit group was significantly higher than that in multiple-visit group. The pain occurrence happened 7 or 30 days, canal filling were no difference between two groups. No statistical difference was observed in success rate of RCT between two groups. Conclusions: Single-visit RCT may be also an effective method for chronic apical periodontitis although the occurrence ofrpost-obturation pain was higher to some degree.
［Key words］ Single-visit root canal treatment Chronic apical periodontitis Post-obturation pain
现代根管治疗技术强调对整个根管系统(包括主根管、侧支根管、副根管、根管交通支以及各种根管不规则区等)的彻底清理、消毒和三维严密充填。通常，为确保充填时根管内的“无菌”状态，许多学者主张在根管内放置具有抗菌性能的氢氧化钙，患者需就诊多次，疗程较长，部分患者常因种种原因无法完成治疗。一次性根管治疗则能够减少就诊次数和治疗周期，极大地提了患者对治疗的依从性，但迄今为止，关于这种治疗的临床研究因病例选择、根管治疗方法、研究方法等不同，结果也不尽相同，甚至差异很大。本文旨在研究慢性根尖周炎一次性根管治疗的临床疗效和可靠性，从而为临床医师提供参考。
1 材料与方法
1.1 病例选择 2002年10月至2003年12月在我院
［Key words］ Single-visit root canal treatment Chronic apical periodontitis Post-obturation pain
现代根管治疗技术强调对整个根管系统(包括主根管、侧支根管、副根管、根管交通支以及各种根管不规则区等)的彻底清理、消毒和三维严密充填。通常，为确保充填时根管内的“无菌”状态，许多学者主张在根管内放置具有抗菌性能的氢氧化钙，患者需就诊多次，疗程较长，部分患者常因种种原因无法完成治疗。一次性根管治疗则能够减少就诊次数和治疗周期，极大地提了患者对治疗的依从性，但迄今为止，关于这种治疗的临床研究因病例选择、根管治疗方法、研究方法等不同，结果也不尽相同，甚至差异很大。本文旨在研究慢性根尖周炎一次性根管治疗的临床疗效和可靠性，从而为临床医师提供参考。
1 材料与方法
1.1 病例选择 2002年10月至2003年12月在我院
