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目的通过实验研究三种根管充填糊剂的根管封闭效果。方法选取66颗离体单根管恒牙,分别用A(AH PlusTM根管充填材料)、B(GuttaFlow常温流动牙胶)和C(Cortisomol丁香油糊剂)充填根管,采用示踪剂浸润法测量染料渗入距离。结果 3组材料的根尖微渗漏值经t检验,A、B组微渗漏值无统计学差异,A、B组与C组微渗漏值具有统计学差异。结论 AH PlusTM根管充填材料和GuttaFlow常温流动牙胶对根尖的封闭能力优于Cortisomol丁香油糊剂。
Objective To study the effect of root canal occlusion of three types of root canal filling paste through experiments. Methods Sixty-six isolated single-rooted permanent teeth were selected, and the root canal was filled with A (AH PlusTM root canal filling material), B (GuttaFlow normal-temperature flowing tooth glue) and C (Cortisomol clove oil paste) Method to measure dye penetration distance. Results The apical microleakage values of three groups of materials were analyzed by t test. There was no significant difference in microleakage between group A and group B, and the microleakage values of group A, B and C were statistically different. Conclusions AH PlusTM root canal filling material and GuttaFlow normal temperature mobile toothpaste have better sealing ability on root tip than Cortisomol clove oil paste.