窝钩封闭中乳牙的酸蚀时间为()
1.乳牙窝沟封闭酸蚀时间为 查看材料
2.乳牙窝沟封闭临床操作的酸蚀时间是()秒,而恒牙为()秒。
3.单选题窝钩封闭中乳牙的酸蚀时间为()A 20sB 40sC 10sD 60sE 2min
4.窝钩封闭中乳牙的酸蚀时间为A.40s B.10s C.60s D.20s E.2min