From: Comparison between rapid and mixed maxillary expansion through an assessment of arch changes on dental casts
Male
Female
Mean age ± SD (year/month)
CVM stage
T0
T1
RME group
21
8
13
8.8 ± 1.37
9.6 ± 1.45
CS1–CS2
CS2–CS3
MME group
9
12
8.9 ± 2.39
10.5 ± 2.08