甲硝唑与洗必泰分别联合超声技术在根管治疗术一次法中应用研究

Comparison research of metronidazole combined with ultrasonic technique and chlorhexidine combined with ultrasonic technique for endodontics by one time

目的:比较甲硝唑联合超声技术与洗必泰联合超声技术在根管治疗术一次法中应用的术后反应和远期疗效。方法:临床选择慢性根尖周炎患牙300颗,随机分为甲硝唑联合超声技术组、洗必泰联合超声技术组、对照组,每组各100颗患牙,采用根管治疗术一次法。对照组采用常规的手持器械进行根管预备,甲醛甲酚消毒后立即充填。比较三组患牙在根管治疗期间发生疼痛的比例和远期疗效。结果:甲硝唑组联合超声技术组、洗必泰联合超声技术组、对照组疼痛发生率分别为9.00%、11.00%、20.00%,实验组和对照组之间有显著性差异(P<0.05),实验组之间无显著性差异(P>0.05)。远期疗效分别为94.00%、93.00%、90.00%,三者之间无显著性差异(P>0.05)。结论:甲硝唑与洗必泰两种超声根管冲洗液均可有效的杀灭根管内细菌,预防根管治疗术后反应,缩短根管治疗的周期,提高根管治疗的成功率。

Objective:To compare the incidence of postoperative pain and long term therapeutic effect of metronidazole combined with ulˉtrasonic technique and chlorhexidine combined with ultrasonic technique for endodontics by one time.Methods:We selected300chronic periapical periodontitis teeth in clinic,then divided them into three groups:metronidazole combined with ultrasonic technique of postoperative pain and long term therapeutic effect of three groups.The control group was conventional times root canal therapy.Results: Theincidence of postoperative pain of three groups was 9.00%, 11.00%, 20.00% respectively, there was significant difference between experimentgroups and control group(P<0.05),there was no significant difference between experiment groups (P>0.05).The long term therapeutic effectof three groups was 94.00%, 93.00%, 90.00% respectively, there was no significant difference among three groups (P> 0.05) .Conclution:Metronidazole and chlorhexidine were idea root canal ultrasonic irrigations, they could kill bacteria of toot canal, prevent the incidence of postop erative pain,shorten the cycle of therapy,and increase success of root canal therapy.