α-TCP/TTCP根管充填材料封闭性能的扫描电镜观察

Study on the sealing ability of α-TCP/TTCP root canal filling material by scanning electron microscope

目的:评价α-TCP/TTCP作为根管充填材料的封闭性能。方法:采用离体牙实验,通过扫描电镜观察比较α-TCP/TTCP,Vitapex糊剂加牙胶尖两组材料的封闭性能。结果:扫描电镜观察发现α-TCP/TTCP组材料与根管壁贴合紧密,未见间隙;而Vitapex糊剂加牙胶尖组与根管壁间有散在不规则间隙,间隙宽度在9～31μm之间。结论:α-TCP/TTCP组的封闭性能优于Vitapex糊剂加牙胶尖组。

Objective：To study the effects of sealing ability of α-TCP/TTCP root canal fillings. Method：To compare the sealing ability of α-TCP/TTCP,Vitapex pasty and gutta-percha on human root canal in vitro by scanning electron microscope（SEM）observation. Result：Under SEM,no gap between α-TCP/TTCP and root canal wall;Several scatterde irregular gaps were shown between Vitapex pasty plus gutta-percha and root canal wall,the gaps width were between 9 μm and 31 μm. Conclusion：The sealing ability of α-TCP/TTCP used as root canal filling material are better than Vitapex pasty plus gutta-percha.