牙周膜的正常厚度为( )A.0.1mm B.0.15~0.38mm C.0.4mm D.3~4mm E.1~2mm

题目
牙周膜的正常厚度为( )

A.0.1mm
B.0.15~0.38mm
C.0.4mm
D.3~4mm
E.1~2mm

相似考题