不同根管封闭剂对E&Q plus热牙胶根管充填法根尖微渗漏的影响

The microleakage study on E&Q plus technique with different root canal sealers

目的通过体外实验研究探讨不同根管封闭剂对E&Q plus热牙胶根管充填法根尖微渗漏的影响。方法选取30颗离体单根管前牙,均使用手用ProTaper镍钛锉预备根管,E&Q plus热牙胶根管充填法充填根管。根管预备时将标本随机分为A、B、C 3组,每组10个。A组用AH-plus封闭剂充填,B组用Adseal封闭剂充填,C组用Cortisomol封闭剂充填,透明染色法检测各组根尖微渗漏值。结果 3种封闭剂的染料渗入距离比较差异无统计学意义。结论 AH-plus、Adseal和Cortisomol封闭剂对E&Q plus热牙胶根管充填法的根尖封闭能力无明显影响。

Objective To study the periapical microleakage of the root canals filled with three root canal sealers using E＆Q plus technique. Methods Thirty extracted anterior teeth with one single canal were collected and randomly divided into three groups as follows： AH-plus sealers （group A）, Adseal sealers （group B）, and Cortisomol sealers （group C）. Each tooth had its canal prepared using ProTaper universal files and obturated by continuouswave condensation. The apical microleakage was assessed by transparent dyeing method. Results The difference observed among the three root canal sealers was no statistically significant. Conclusion This study demonstrates that the three different root canal sealers make no difference in the sealing ability using E＆Q plus technique.