酸性氧化电位水在根管治疗中的应用研究

Study on the effects of electrolyzed oxidizing water in root canal treatment

目的:评价酸性氧化电位水作为根管冲洗剂在灭菌和除去根管玷污层使根管达到无菌状态中的作用。方法:将108颗作根管治疗的单根患牙随机分为2组,实验组用酸性氧化电位水,对照组用过氧化氢液、生理盐水和乙二胺四乙酸二钠盐,分别在冲洗根管前后将根管内容物做细菌培养,检测有无菌落生成,再将20颗新鲜离体牙按上述方法分组处理,对每组患牙根管壁进行扫描电镜观察,评价除去根管玷污层效果。结果:在根管冲洗后,实验组和对照组根管内容物细菌培养阴性率无显著差异,在除去根管壁玷污层效果方面,2组也无显著差异。结论:酸性氧化电位水作为根管冲洗剂,可有效杀灭根管内细菌和去除根管玷污层,在临床上有较好的应用前景。

Objective： To clinically evaluate the efficacy of electrolyzed oxidizing water （EOW） as a root canal irrigation solution on disinfecting bacteria and removing the smear-layer to keep the non-bacterium state in the root canal. Methods： In the first experiment, 108 single-rooted teeth that needed root canal treatment were randomly divided into two groups. EOW was used as the root canal irrigation solution in the experimental group while 30 ml/ L H2O2 , saline solution, and 75 g,/L EDTA solution were used as controls. Bacteriological examinations were conducted from each tooth before and after treatment with the root canal irrigation solutions. In the second experiment, the 20 fresh human extracted teeth were divided into two groups and treated as same as the first experiment in root canal preparation and irrigation. After irrigation, the apical canal wall was observed using SEM. Results： There was no significant difference in bacterial growth and removing the smear layer between the group using EOW and that using saline solution, 30 ml/L H2O2 and 75 g/L EDTA solution. Conclusion：The results indicate EOW is useful as a clinical root canal irrigation solution.