Table 2 The operative time and post-operative complications of test and control groups (per protocol analysis)

Time^†

61.19 ± 4.53

33.87 ± 4.66

< 0.001

Pain score (VAS)^†

2d

4.63 ± 1.02

5.31 ± 1.2

0.160

7d

2.56 ± 0.89

3.34 ± 1.25

0.061

Within groups(P) ^‡

< 0.001

< 0.001

Swelling (tragus-Pogonion, mm)^†

2d

10.62 ± 4.8

9.94 ± 4.81

0.752

7d

4.87 ± 4.29

5.00 ± 6.27

0.381

Within groups(P)^‡

0.004

0.005

Infection (%)^§

2(12.5)

0(0)

0.484

Numbness of the lip (%)^§

1(6.25)

2(12.5)

1.000