玻璃离子水门汀广泛应用于齿科临床,其粉末中含有大量的氟化合物.能够长期持续释放氟。为明确玻璃离子水门汀含氟量,应用微量扩散方法、改良微量扩散方法.盐酸抽提方法对玻璃离子水门汀粉末中氟含量进行测定,得出如下结论:盐酸抽提方法能够测定玻璃离子水门汀氟水平,且优于微量扩散方法;玻璃离子水门汀粉末中氟含量为 7.38～13.10％。 Glass ionomer cement is widely used in dental clinic and its powder contains a large amount of fluorine compound, which can continuously release fluorine for a long time. In order to clarify the fluorine content of glass ionomer cement, the micro diffusion method and the modified micro diffusion method were adopted.The content of fluorine in the glass ionomer cement powder was determined by hydrochloric acid extraction method, and the following conclusions were obtained: hydrochloric acid extraction method can measure the fluorine ion content of glass ionomer cement , And better than the micro-diffusion method; glass ionomer cement fluoride content of 7.38 ~ 13.10%.