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Table 4 Change of the hard tissue landmark (mm) after mandibular setback surgery

From: Changes of lip morphology following mandibular setback surgery using 3D cone-beam computed tomography images

Landmarks Δ(T2 − T1) (mm)
Mean SD p value
ΔB(z) −5.05 2.84 0.000**
ΔL1(z) −4.63 2.34 0.000**
Δpog(z) −4.45 3.37 0.001**
ΔMe(y) −1.20 1.34 0.014*
  1. *Statistically significant difference between the groups (P <0.05)
  2. **Statistically significant difference between the groups (P <0.01)