Table 1 The demographic information of including patients

Demographic

Age (years)

24.86 ± 4.10

Sex (male / female)

8/16

Angle classification (Class I / Class II)

14/10

Skeletal classification (Class I / Class II)

7/17

Overbite at T1 (mm)

1.64 ± 1.13

Overjet at T1 (mm)

3.63 ± 2.00

Treatment duration (years)

2.89 ± 0.58

Retention duration (years)

1.52 ± 0.50

Pre-treatment Cephalometric analysis

SNA (°)

83.31 ± 2.83

SNB (°)

77.61 ± 2.76

ANB (°)

5.71 ± 1.12

SN-MP (°)

38.50 ± 2.67

U1-SN (°)

112.71 ± 8.55

U1-NA (°)

24.22 ± 4.45