超声下不同根管冲洗剂组合对感染根管内粪肠球菌杀灭效果的研究
发布时间：2018-11-09 13:19
【摘要】：目的:比较超声作用下不同根管冲洗剂组合对根管内粪肠球菌的杀灭效果。方法:取粪肠球菌感染根管模型样本90个,随机分为6组(n=15),其中5个样本用于基线对照,10个样本分别按相应分组处理,A组:25 g/L次氯酸钠液液+20 g/L洗必泰液;B组:25 g/L次氯酸钠液+30 m L/L过氧化氢液;C组:10 g/L次氯酸钠液+20 g/L洗必泰液;D组:10 g/L次氯酸钠液+30 m L/L过氧化氢液;E组:52.5 g/L次氯酸钠液阳性对照;F组:生理盐水阴性对照。处理前后从样本的根管壁表面采样,并钻取不同深度牙本质进行细菌培养和计数。结果:A、B、C、D、E组根管壁表面及不同深度牙本质的细菌清除率均显著高于F组(P0.05);对各层牙本质的细菌清除率,A组高于B、C、D组(P0.05),与E组相比,除200~300μm深度处明显降低(P0.05)外,其他各层与E组相当(P0.05);C组对不同深度牙本质层的细菌清除率均在90%以上,低于A、E组,高于其他各组(P0.05);B、D组在各不同深度牙本质层的细菌清除率基本相当(P0.05),低于其他各实验组和E组(P0.05)。结论:超声辅助下用25 g/L次氯酸钠液联合20 g/L洗必泰液冲洗根管,能有效杀灭根管内的粪肠球菌。
[Abstract]:Objective: to compare the killing effect of different root canal flushing agents on Enterococcus faecalis in root canal. Methods: 90 samples of Enterococcus faecalis infected root canal model were randomly divided into 6 groups (n = 15). Among them, 5 samples were used as baseline control and 10 samples were treated by corresponding groups. Group A: 25 g / L sodium hypochlorite solution 20 g / L chlorhexidine solution; Group B: 25 g / L sodium hypochlorite solution 30 mL / L hydrogen peroxide solution; group C: 10 g / L sodium hypochlorite solution 20 g / L chlorhexidine solution; group D: 10 g / L sodium hypochlorite solution 30 mL / L hydrogen peroxide solution; Group E: 52.5 g / L sodium hypochlorite positive control, group F: saline negative control. The root canal surface of the sample was sampled before and after treatment, and different depth dentin was drilled to culture and count the bacteria. Results: the bacterial clearance rates of root canal wall surface and dentin of different depth in group A were significantly higher than those in group F (P0.05). For each layer of dentin, the bacterial clearance rate in group A was higher than that in group D (P0.05), except that in group E, the depth of 200 渭 m was significantly decreased (P0.05), and the other layers were similar to group E (P0.05). The bacterial clearance rates of group C to dentin layer of different depth were all above 90%, lower than that of group A E and higher than those of other groups (P0.05). The bacterial clearance rate in different depth of dentin layer in group B D was similar (P0.05), which was lower than that in other experimental groups and E groups (P0.05). Conclusion: ultrasonic assisted washing root canal with 25 g / L sodium hypochlorite solution and 20 g / L chlorhexidine solution can effectively kill Enterococcus faecalis in root canal.
【作者单位】： 汉中市口腔医院;第四军医大学口腔医院牙体牙髓病科
【分类号】：R781.05
[Abstract]:Objective: to compare the killing effect of different root canal flushing agents on Enterococcus faecalis in root canal. Methods: 90 samples of Enterococcus faecalis infected root canal model were randomly divided into 6 groups (n = 15). Among them, 5 samples were used as baseline control and 10 samples were treated by corresponding groups. Group A: 25 g / L sodium hypochlorite solution 20 g / L chlorhexidine solution; Group B: 25 g / L sodium hypochlorite solution 30 mL / L hydrogen peroxide solution; group C: 10 g / L sodium hypochlorite solution 20 g / L chlorhexidine solution; group D: 10 g / L sodium hypochlorite solution 30 mL / L hydrogen peroxide solution; Group E: 52.5 g / L sodium hypochlorite positive control, group F: saline negative control. The root canal surface of the sample was sampled before and after treatment, and different depth dentin was drilled to culture and count the bacteria. Results: the bacterial clearance rates of root canal wall surface and dentin of different depth in group A were significantly higher than those in group F (P0.05). For each layer of dentin, the bacterial clearance rate in group A was higher than that in group D (P0.05), except that in group E, the depth of 200 渭 m was significantly decreased (P0.05), and the other layers were similar to group E (P0.05). The bacterial clearance rates of group C to dentin layer of different depth were all above 90%, lower than that of group A E and higher than those of other groups (P0.05). The bacterial clearance rate in different depth of dentin layer in group B D was similar (P0.05), which was lower than that in other experimental groups and E groups (P0.05). Conclusion: ultrasonic assisted washing root canal with 25 g / L sodium hypochlorite solution and 20 g / L chlorhexidine solution can effectively kill Enterococcus faecalis in root canal.
【作者单位】： 汉中市口腔医院;第四军医大学口腔医院牙体牙髓病科
【分类号】：R781.05
【参考文献】
相关期刊论文 前1条
1 仇s，
本文编号：2320521
本文链接：https://www.wllwen.com/yixuelunwen/kouq/2320521.html
最近更新
教材专著
