采用荧光着色剂对瓷牙显微结构的影响采用荧光着色剂制造的瓷牙,其基质石英、粘土,长石经高温熔融以后,部分长石和粘土因它们的熔化温度比较低,形成玻璃相。而石英颗粒因熔化温度较高而未能全部熔融,这些残余下来的石英颗粒存在于玻璃相中起到了骨架作用。从显微照片看它大部分为玻璃相,其余的为未熔石英及少量的针状莫来石。我们在实验中发现,荧光着色剂的加入量对材料的结构有影响,当在一定用量范围内使用稀土元素氧化物 The effect of fluorescent colorant on the microstructure of porcelain tooth porcelain tooth made by fluorescent colorant. After the matrix quartz, clay and feldspar were melted at high temperature, some feldspar and clay formed glass phase because their melting temperature was relatively low. The quartz particles due to the higher melting temperature can not be fully melted, these residual silica particles exist in the glass phase has played a role in the skeleton. From the photomicrograph it is mostly glass phase, the rest is unmelted quartz and a small amount of acicular mullite. We found in the experiment, the amount of fluorescent colorants on the structure of the material have an impact, when within a certain amount of use of rare earth oxide