摘要
目的研究生理盐水、EDTA、次氯酸钠、口泰与超声波联合应用杀灭感染根管内厌氧菌的效果。方法将100例慢性根尖周炎患者共100颗患牙随机分为常规组、生理盐水组、EDTA组、次氯酸钠组、口泰组5组,每组各20颗患牙,常规组用常规法手持器械根管预备并分别用3%双氧水和生理盐水常规针筒式冲洗根管,后四组均用超声法进行根管预备并分别以生理盐水、EDTA、次氯酸钠、口泰作为超声冲洗液,根管预备前后分别取样进行厌氧培养。结果次氯酸钠组和口泰组其厌氧菌减少程度均显著大于生理盐水组(P<0.01),明显大于EDTA组(P<0.05);生理盐水组和EDTA组之间其厌氧菌的减少程度无显著性差异(P>0.05);次氯酸钠组和口泰组之间其厌氧菌减少程度无显著性差异(P>0.05)。结论口泰与超声波联合应用可有效杀灭感染根管内厌氧菌,其抗菌效果与次氯酸钠相近似。
Objective To study the bactericidal effect of ultrasonic technique combined with saline（SL） ,EDTA, sodium hypochlorite （SH）or koutai （KT） irrigation in root canal preparation. Methods One hundred single - rooted teeth of 100 patients with chronic periapical periodontitis were divided into five groups of 20 patients each randomly. The tooth canal in group SL,EDTA,SH and KT were all preparated with ultrasonic technique. SL,EDTA,SH and KT were used to irrigate in group SL,EDTA,SH and KT respectively. Thirty micro liter of liquid sample was obtained from each root canal and examined for anaerobic bacteria colony counting before and after root canal preparation. Results After root canal preparation the number of anaerobic bacteria colony was significantly reduced in all the 5 groups （ P 〈 0.01 ）. The reduction of the colony number in group SH and group KT was more than that in group SL （ P 〈0.01） and group EDTA （ P 〈0.01 ）, whereas there was no difference between group SL and group EDTA （ P 〉0.05 ）, and there was no difference between group SH and group KT （ P 〉 0.05 ）. Conclusion Ultrasonic treatment combined with Koutai irrigation has potential bactericidal effect in root canal preparation.
出处
《现代口腔医学杂志》
CAS
CSCD
北大核心
2008年第4期405-407,共3页
Journal of Modern Stomatology
基金
江西省卫生厅科研基金资助项目(20061035)
关键词
根管治疗
根管冲洗剂
超声疗法
细菌
厌氧
Root canal treatment Root canal irrigants Ultrasonic therapy Bacteria Anaerobic
