含氟人工唾液对金属托槽镍离子释放的影响

The Influence of Fluorion on the Quantity of Nickel Ions Released from the Metal Brackets

目的:通过检测金属托槽在含氟人工唾液中析出的镍离子量,探讨氟离子对金属托槽镍离子释放的影响。方法:采用全新标准方丝弓金属托槽,共20个样本,随机分为含氟组和无氟组。将20个样本按分组分别浸泡在不同的人工唾液中,采用电感耦合等离子体发射光谱分析法(ICP-MS)测定金属托槽在人工唾液浸泡4周后的镍离子析出量。结果:含氟组的镍离子析出量高于无氟组,差异具有统计学意义(P<0.05)。结论:氟离子的存在会增加金属托槽镍离子的析出量。

Objective： To test whether fluorion would influent the quantity of nickel ions released from metallic brackets.Methods： 20 samples were divided into two groups and each sample contains five new Standard Edgewise metallic brackets from Maxillary second premolar to central incisor.All the samples of Group 1 and Group 2 were immersed in the artificial saliva with and without fluorion separately.The quantity of nickel ions were detected by ICP-MS 4 weeks later.Results： Comparing with the group 2,the group 1 released more nickel ions and the result showed significant difference（P0.05）.Conclusion： The fluorion can increase the quantity of nickel ions released from metallic brackets.