Table 2 TMJ side-related space dimensions of the BSSO and Control group assessed by CBCT
TMJ space | T0 | T1 | T1 – T0 | P* | T2 | T2 – T1 | P* | T2—T0 | P* |
|---|---|---|---|---|---|---|---|---|---|
Right side | |||||||||
Posterior space | |||||||||
BSSO group (n = 36) | 2.9 ± 0.8 | 2.4 ± 0.7 | -0.6 ± 1.1 | 0.004 | 2.1 ± 0.7 | -0.2 ± 0.9 | 0.165 | -0.8 ± 0.9 | < 0.001 |
Control group (n = 25) | 2.8 ± 0.8 | 2.2 ± 0.4 | -0.5 ± 0.9 | 0.004 | 2.4 ± 0.9 | 0.2 ± 0.9 | 0.266 | -0.3 ± 1.0 | 0.098 |
Superior space | |||||||||
BSSO group (n = 36) | 3.6 ± 0.1 | 3.4 ± 0.8 | -0.2 ± 1.1§ | 0.263 | 3.5 ± 0.7 | 0.1 ± 0.9 | 0.415 | -0.1 ± 0.9 | 0.556 |
Control group (n = 25) | 3.5 ± 0.9 | 4.1 ± 1.1 | 0.6 ± 1.6§ | 0.093 | 3.9 ± 0.7 | -0.2 ± 1.5 | 0.496 | -0.3 ± 0.9 | 0.076 |
Medial space | |||||||||
BSSO group (n = 36) | 2.3 ± 0.7 | 3.2 ± 0.9 | 0.9 ± 1.0§ | < 0.001 | 2.2 ± 0.7 | -1.0 ± 0.8 | < 0.001 | -0.07 ± 0.7 | 0.562 |
Control group (n = 25) | 2.6 ± 0.7 | 2.8 ± 0.8 | -0.2 ± 0.6§ | 0.136 | 2.6 ± 0.7 | 0.2 ± 0.6 | 0.192 | -0.0 ± 0.1 | 0.435 |
Left side | |||||||||
Posterior space | |||||||||
BSSO group (n = 36) | 3.0 ± 1.0 | 2.3 ± 0.7 | -0.7 ± 1.2 | < 0.001 | 2.0 ± 0.5 | -0.3 ± 0.8 | 0.026 | -1.0 ± 1.0§ | < 0.001 |
Control group (n = 25) | 2.8 ± 1.1 | 2.4 ± 0.6 | -0.3 ± 1.0 | 0.121 | 2.6 ± 0.1 | 0.1 ± 1.1 | 0.520 | -0.2 ± 1.2§ | 0.464 |
Superior space | |||||||||
BSSO group (n = 36) | 3.4 ± 1.0 | 3.6 ± 0.6 | 0.2 ± 1.1 | 0.260 | 3.1 ± 0.8 | -0.5 ± 0.9 | < 0.001 | -0.4 ± 1.0 | 0.032 |
Control group (n = 25) | 3.6 ± 0.9 | 4.4 ± 1.4 | 0.8 ± 1.7 | 0.024 | 3.8 ± 0.6 | -0.5 ± 1.6 | 0.104 | -0.3 ± 1.0 | 0.158 |
Medial space | |||||||||
BSSO group (n = 36) | 2.4 ± 0.9 | 3.5 ± 1.2 | 1.0 ± 0.9 | < 0.001 | 2.3 ± 0.7 | -1.2 ± 1.0 | < 0.001 | -0.2 ± 0.5 | 0.051 |
Control group (n = 25) | 2.6 ± 0.8 | 2.8 ± 0.6 | 0.2 ± 0.5 | 0.072 | 2.7 ± 0.8 | -0.2 ± 0.5 | 0.140 | 0.1 ± 0.1 | 0.086 |