100 g/L(NH 4) 2MoO 2F 4 solution may arres t root lesion progress as effectively as 380 g/L Ag(NH 4) 2F 4 solution and preferably to 20 g/L NaF solu tion.

• 10 0g/L氟钼酸铵有抑制根面龋损作用 ,其作用与 3 80 g/L氟化氨银相似 ,优于 2 0 g/L氟化钠