摘要
目的探讨根管再治疗的技术及方法。方法选取2005年7月至2006年8月于东南大学医学院附属徐州中心医院口腔科就诊的38例患者共46颗需根管再治疗的患牙,采用小号K型锉配合次氯酸钠溶液和乙二胺四乙酸二钠(EDTA)溶液探查根管并清理根管内感染物质,封入氢氧化钙糊剂1～2周,采用手用镍钛器械ProTaper进行根管预备,侧向加压技术充填根管,记录治疗过程中患牙症状的改善程度、根管疏通情况、根管预备和充填效果。结果45颗患牙根管疏通成功,治疗过程中症状明显缓解或完全消失,瘘管明显减小或消失,根管预备时无根管偏移、根尖阻塞、台阶等并发症发生,根管形态良好。结论根管再治疗时应强调彻底清除根管内感染物质。采用次氯酸钠和EDTA溶液清理根管,氢氧化钙消毒根管,器械ProTaper进行根管预备能取得良好的治疗效果。
Objective To discuss the clinical features and technique of endodontic retreatment. Methods Totally 46 molars that were treated with pulp mummification were selected for root canal therapy.The root canals were explored with small size K files combined with NaOCl and EDTA. The calcium hydroxide was then used as intracanal dressing for one to two weeks. The root canals of all cases were instrumented by hand-used Ni-Ti ProTaper instruments,and obturated with lateral condensation technique.The change of symptom and negotiation of root canal system were recorded,and the efficiency of preparation and obturation was analyzed with radiographs before and after treatment. Results The root canals of 45 teeth were negotiated successfully, of which symptoms were obviously improved. No complication, such as transportation, ledge or blockage was found. Good result of treatment was achieved in the 45 cases. Conclusion Debridement of infected root canals of mummified teeth should be reinforced by means of irrigation with NaOCl and EDTA,then medication with calcium hydroxide. With hand-used Ni-Ti ProTaper instrumentation of root canal system after negotiation,the mummified teeth can be retreated very well.
出处
《中国实用口腔科杂志》
CAS
2008年第8期497-499,共3页
Chinese Journal of Practical Stomatology
关键词
根管再治疗
牙髓病
endodontic retreatment
pulp disease
