不同品牌玻璃离子水门汀氟释放的比较

Fluoride release from different glass ionomer cements

目的：离体比较临床用不同品牌及固化方式的玻璃离子水门汀（ＧＩＣ）氟释放情况，为临床使用含氟充填材料防龋提供理论依据。方法：４种ＧＩＣ，分别为Ｓｈｏｆｕ，青浦，Ｃｈｅｍｆｉｌ３种化学固化型和ＶｉｔｒｅｍｅｒＴＭ光固化型ＧＩＣ，离子选择电极法测量材料在去离子水中氟释放量。结果：所有测试材料在实验期间都能在去离子水中持续释放氟，ＶｉｔｅｒｍｅｒＴＭ、Ｓｈｏｆｕ、Ｃｈｅｍｆｉｌ和青浦分别为（２１．１１±９．７６）μｇ、（８．０８±４．４３）μｇ、（６．５２±３．２８）μｇ，（１７．６７±６．９３）μｇ（Ｐ＜０．０１）。结论：不同品牌及固化方式的ＧＩＣ氟释放能力不同，树脂基因引入玻璃离子水门汀并不影响其氟释放能力。

Objective: To compare the fluoride release from different glass ionomer cements. Methods: Fluoride from glass ionomer cements including VitremerTM, Shofu, Chemfil and Qinpu, was measure by ion selective electrode for 34 days and the fuoride release values were compared. Result: All the materials released fluoride continuously during the period. The mean fluoride released from VitremerTM, Shofu, Chemfil, and Qinpu were (21.119.76) g, (8.084.43) g,(6.523.28) g and (17.656.93) g respectively(P<0.01). Conclusion: The fluoride release is associated with cure method and the resin of VitremeTM glass ionomer cement does not influence the fluoride release.