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Progress in Orthodontics

Table 5 Linear changes in soft tissue measurements after mandibular setback surgery

From: Three-dimensional soft tissue changes according to skeletal changes after mandibular setback surgery by using cone-beam computed tomography and a structured light scanner

Variables

Before surgery

After surgery

p value

ΔT2–T1

Mean

SD

Mean

SD

Mean

SD

Nasal width (Al dev–Al ctl)

39.65

3.04

39.60

3.01

.875

− 0.05

0.53

Lip width (Ch dev–Ch ctl)

47.72

3.37

45.75

4.02

.045*

− 1.97

1.74

Lower facial height (Sn–Me’)

68.23

5.45

66.06

4.88

.008**

− 2.17

1.15

Upper lip height (Sn–Stms)

19.79

2.87

18.81

2.30

.078

− 0.98

1.63

Lower lip height (Stmi–Pog’)

30.40

2.83

29.52

2.81

.153

− 0.88

1.91

Upper vermilion height (Ls–Stms)

5.58

1.40

5.57

1.39

.119

− 0.01

1.10

Lower vermilion height (Li–stmi)

9.49

1.70

9.16

1.48

.279

− 0.33

1.18

  1. Paired t test was performed
  2. *p < 0.05; **p < 0.01
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