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Table 4 Changes in tongue dimension and position before (T0) and after (T1) surgery

From: Changes in the hyoid bone, tongue, and oropharyngeal airway space after mandibular setback surgery evaluated by cone-beam computed tomography

Variable T0 T1 ΔT1 − T0 P value
TGL (mm) 68.82 ± 5.21 69.96 ± 5.97 1.13 ± 3.08 0.054
TGH (mm) 31.01 ± 4.73 31.71 ± 3.82 0.71 ± 3.17 0.231
Palatal height (mm) 7.84 ± 5.80 5.11 ± 5.21 − 2.73 ± 5.19 0.007**
Intraoral airway volume (mm3) 14043.97 ± 10009.12 8015.67 ± 9450.49 − 6028.30 ± 10659.29 0.004**
PNSperp-TT/PNSperp-U1 0.88 ± 0.08 0.82 ± 0.09 − 0.07 ± 0.09 0.001**
  1. Data are presented as mean ± standard deviation. Paired t tests were performed to determine significant differences in tongue dimension and position between T0 and T1. T0 before surgery, T1 1 month after surgery, TGL tongue length, TGH tongue height
  2. *P < 0.05; **P < 0.01; ***P < 0.001