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Table 6 Evaluation of maximum mouth opening after USSRO and BSSRO

From: Comparison of condylar morphology changes and position stability following unilateral and bilateral sagittal split mandibular ramus osteotomy in patients with mandibular prognathism

  USSRO BSSRO
T0 T1 T2 T0 T1 T2
Mean ± SD (mm) 48.1 ± 6.2 24.8 ± 8.3 45.4 ± 5.5 49.2 ± 7.1 21.6 ± 8.1 48.4 ± 8.8
P (T0-T1) 0.038* 0.001**
P (T0-T2) 0.468 0.078
P (T1-T2) 0.005** 0.001**
  1. T0: preoperative, T1: immediately after surgery, T2: 1 year after surgery, *: P < 0.05, **: P < 0.01