摘要
目的:比较Odontoson-M,P-MAX和Spartan3种超声仪根管冲洗的效果。方法:选择完整离体单直根管前磨牙,采用不锈钢K锉和逐步深入技术根管预备后超声冲洗。冲洗后纵向劈开标本,采用数码照相机照相和扫描电镜观察,分别计算比较根管内碎屑百分数及牙本质小管开口数。结果:以5g/L次氯酸钠为冲洗液时,Odontoson-M超声仪在根管中1/3区的碎屑百分数明显低于其他2种超声仪(P<0.05),管壁牙本质小管的开口数明显多于其他2种超声仪(P<0.05)。结论:在实验条件下,Odontoson-M超声仪根管冲洗效果可能好于其他2种超声仪。
Objective：To compare the efficacy on root canal debridement of three ultrasonic units Odontoson-M, P- MAX and Spartan. Methods： Extracted healthy premolars with one single straight canal were used. The canals were prepared by step-down technique. After preparation, the canals were received ultrasonic irrigation and split longitudinally. Debris scores were calculated after photographing with a digital camera. The number of visible open dentinal tubules were, evaluated by SEM. Results： At middle third of the canals, when irrigated with 5 g/L NaOCI, the debris score in group Odontoson-M was significantly lower than that in other groups （ P 〈 0. 05 ） and the number of visible open dentinal tubules was significantly higher than that in other groups （ P 〈 0. 05 ）. Conclusion： According to experimental results, the efficacy of Odontoson-M for irrigation is greater than other two ultrasonic units.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2007年第5期708-711,共4页
Journal of Practical Stomatology
基金
湖北省科委创新群体基金(编号:2004ABC004)
关键词
超声仪
冲洗
碎屑
Ultrasonic unit
Irrigation
Debris
