Research Article

Postoperative Skeletal Stability and Pharyngeal Airway: Counterclockwise versus Clockwise Rotation during Mandibular Setback Surgery

Table 3

The clockwise and counterclockwise rotation of mandibular setback in the final surgical changes (T31) by Student’s t-test.

VariablesClockwiseCounterclockwiseIntergroup group comparison
MeanSDMeanSD value

C4C2-SN angle3.655.352.685.440.58
Palatal angle5.256.582.355.970.13
Soft palate width−0.291.71−0.431.650.82
Soft palate length1.312.700.994.010.76
Pharyngeal airway
 NOP−0.161.95−0.102.080.20
 UOP−2.262.06−2.832.360.37
 TOP−3.113.06−3.694.310.64
 EOP−1.513.85−0.872.550.50
Hyoid
 Horizontal−5.754.06−4.426.120.47
 Vertical2.976.381.475.980.36
Menton
 Horizontal−13.063.32−12.564.290.63
 Vertical3.293.01−2.411.66<0.01

Statistically significant; ; —: not significant.