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本文采用染料渗入法观察四种光固化材料充填体边缘微漏。结果表明：ＴＰＨＴＭ、ＨｅｒｃｕｌｉｔｅＸＲＴＭ和ｖａｒｉＧｌａｓｓＴＭ的微漏程度无显著性差异（Ｐ＞０．０５）。而Ｄｕｒａｆｉｌｌ与上述三种材料的微漏程度有显著性差异（Ｐ＜０．０５）。
In this paper, dye penetration method was used to observe the edge microleakage of the four kinds of photocuring materials. The results showed that there was no significant difference in the microleakage between TPHTM, HerculiteXRTM and variGlassTM (P> 0.05). However, there was a significant difference in the degree of microleakage between Durafill and the above three materials (P <0.05).