以无氟牙膏为对照,研究含氟牙膏刷洗钛铸件对其表面形态、光泽和色彩的影响.结果表明:钛铸件用含氟牙膏刷洗后表面形态有较大的改变,而用无氟牙膏刷洗后表面形态无明显变化;两组钛铸件刷洗后均出现了失泽和变色,色彩偏蓝、偏绿,变得晦暗,但两组的色差无显著性差异.因此使用含氟牙膏刷洗对钛铸件表面形态的影响大于无氟牙膏,2种牙膏对钛铸件的色彩均有一定影响,但二者之间无显著性差异.
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