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Table 4 Comparison of dental midline deviation, SNB angle, and SN-MP angle between the different time points in the USSRO and BSSRO groups: T0 (preoperative), T1 (immediately after surgery), T2 (1 year after surgery)

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

Parameters

Dental midline deviation (mm)

SNB changes (°)

SN-MP changes (°)

T0-T1

T1-T2

T0-T1

T1-T2

T0-T1

T1-T2

USSRO

3.9

0.4 ± 0.1

5.4 ± 1.6

1.5 ± 0.5

2.3 ± 0.8

1.0 ± 0.6

BSSRO

4.8

0.4 ± 0.1

5.6 ± 2.7

1.4 ± 0.4

3.3 ± 0.9

2.0 ± 0.7

P-value within USSRO

< 0.01**

0.163

< 0.01**

0.438

< 0.01**

0.232

P-value within BSSRO

< 0.01**

0.235

< 0.01**

0.419

< 0.01**

0.147

P-value between USSRO and BSSRO

< 0.01**

0.062

< 0.01**

0.462

0.267

0.082

  1. T0: preoperative, T1: immediately after surgery, T2: 1 year after surgery, **: P < 0.01