CAJ | 학술논문

背景:根管封闭剂的抑菌性能有助于去除残留于根管内的微生物,是影响根管治疗预后的一项重要因素. 目的:检测AH plus、Vitapex、Guttaflow及Endomethasone等4种根管封闭剂的体外抑菌性能. 方法:采用琼脂扩散实验测定AH plus、Vitapex、Guttaflow及Endomethasone 等4种根管封闭剂、盐酸米洛环素或咪康唑霜剂(阳性对照)组及生理盐水(阴性对照)组对粪肠球菌、金黄色葡萄球菌、大肠杆菌及白色念珠菌等微生物的体外抑制作用,24 h后检测各组材料抑菌环的大小. 结果与结论:Endomethasone根管封闭剂对上述4种微生物均有良好的抑制作用,但其对金黄色葡萄球菌、大肠杆菌及白色念珠菌的抑制作用显著低于阳性对照组(P <0.01),对粪肠球菌的抑制作用强于阳性对照组(P <0.01).AH plus 根管封闭剂仅对白色念珠菌有抑制作用,但抑制作用显著小于 Endomethasone 根管封闭剂及阳性对照组(P<0.01).Vitapex及Guttaflow根管封闭剂对上述4种微生物无抑制作用;表明Endomethasone根管封闭剂的体外抑菌作用最强,AH plus根管封闭剂次之,而Vitapex及Guttaflow根管封闭剂无体外抑菌作用.
배경:근관봉폐제적억균성능유조우거제잔류우근관내적미생물,시영향근관치료예후적일항중요인소. 목적:검측AH plus、Vitapex、Guttaflow급Endomethasone등4충근관봉폐제적체외억균성능. 방법:채용경지확산실험측정AH plus、Vitapex、Guttaflow급Endomethasone 등4충근관봉폐제、염산미락배소혹미강서상제(양성대조)조급생리염수(음성대조)조대분장구균、금황색포도구균、대장간균급백색념주균등미생물적체외억제작용,24 h후검측각조재료억균배적대소. 결과여결론:Endomethasone근관봉폐제대상술4충미생물균유량호적억제작용,단기대금황색포도구균、대장간균급백색념주균적억제작용현저저우양성대조조(P <0.01),대분장구균적억제작용강우양성대조조(P <0.01).AH plus 근관봉폐제부대백색념주균유억제작용,단억제작용현저소우 Endomethasone 근관봉폐제급양성대조조(P<0.01).Vitapex급Guttaflow근관봉폐제대상술4충미생물무억제작용;표명Endomethasone근관봉폐제적체외억균작용최강,AH plus근관봉폐제차지,이Vitapex급Guttaflow근관봉폐제무체외억균작용.
BACKGROUND:Antimicrobial activity of root canal sealers is an important factor in the prognosis of root canal treatment, which can be helpful in destroying any remaining root canal microbes. @@@@OBJECTIVE:To determine in vitro antimicrobial activity of four kinds of root canal sealers (AH plus, Vitapex, Guttaflow and Endomethasone). @@@@METHODS:The antimicrobial effects of AH plus, Vitapex, Guttaflow, Endomethasone, the minocycline hydrochloride or miconazole nitrate cream (positive control group) and normal saline (negative control group) against the fol owing microbes:Enterococcus faecalis, Staphylococcus aureus, Escherichia coli and Candida albicans were evaluated using the agar diffusion test in vitro. The diameters of the zones of microbial growth inhibition were measured after 24 hours. @@@@RESULTS AND CONCLUSION:Endomethasone demonstrated an antimicrobial activity for al tested microbes. The mean antimicrobial efficacy of Endomethasone against Staphylococcus aureus, Escherichia coli and Candida albicans was significantly less as compared with that of the positive control group (P<0.01);however, the inhibition effect on Enterococcus faecalis was more effective than that on the positive control group (P<0.01). For AH plus, only Candida albicans was inhibited and presented smal er mean zone of microbial growth inhibition than Endomethasone and the positive control group (P<0.01). No antimicrobial activity was detected for Vitapex and Guttaflow. It indicats that antimicrobial activity of the four kinds of root canal sealers is greatest for Endomethasone, fol owed by AH-Plus, whilst Vitapex and Guttaflow have no antimicrobial activity.