Table 1 Characteristics of the sample

Initial age (T1)

12.54

1.17

Final age (T2)

14.59

1.17

Follow-up age (T3)

26.49

1.24

Posttreatment time (T2–T1)

2.05

0.21

Follow-up time (T3–T2)

11.90

0.48

Sex

Male

Female

5 (31.25%)

11 (68.75%)

Skeletal age (T1)

C2

C3

7 (43.75%)

9 (56.25%)

3X3 Retainer at T3

Presence

13 (81.25%)

Absence

3 (18.75%)