Control group | UPCB group | |||||
---|---|---|---|---|---|---|
Mean ± SD | 95% CI | Mean ± SD | 95% CI | t value | P value | |
Linear measurements | ||||||
Maxillary transverse width differences—premolar | ||||||
Premolar (mm) | − 1.03 ± 2.55 | − 1.10, − 2.22 | 2.21 ± 2.53 | 1.03, 3.40 | − 4.307 | 0.000* |
Buccal alveolar crest (mm) | − 0.25 ± 2.40 | − 1.37, 0.88 | 1.13 ± 1.84 | 0.26, 1.99 | − 2.026 | 0.050 |
Buccal midalveolar (mm) | − 0.04 ± 2.07 | − 1.00, 0.93 | 0.18 ± 1.59 | − 0.57, 0.93 | − 0.368 | 0.715 |
Palatal alveolar crest (mm) | − 0.28 ± 2.36 | − 1.38, 0.83 | 1.17 ± 2.13 | 0.17, 2.16 | − 2.023 | 0.050 |
Palatal midalveolar (mm) | − 0.62 ± 2.25 | − 1.67, 0.44 | − 0.74 ± 1.92 | − 1.64, 0.16 | 0.189 | 0.851 |
Maxillary transverse width differences—molar | ||||||
Molar (mm) | − 0.80 ± 1.99 | − 1.73, 0.14 | 3.16 ± 2.85 | 1.82, 4.49 | − 5.082 | 0.000* |
Buccal alveolar crest (mm) | − 0.55 ± 1.85 | − 1.41, 1.85 | 0.76 ± 3.52 | − 0.89, 2.41 | − 1.467 | 0.151 |
Buccal midalveolar (mm) | − 0.27 ± 1.75 | − 1.09, 0.55 | − 0.11 ± 3.02 | − 1.52, 1.31 | − 0.211 | 0.834 |
Palatal alveolar crest (mm) | − 0.70 ± 1.72 | − 1.50, 0.11 | 1.45 ± 2.48 | 0.28, 2.48 | − 3.172 | 0.003* |
Palatal midalveolar (mm) | − 0.38 ± 1.90 | − 1.27, 0.52 | 0.66 ± 2.28 | − 0.41, 1.73 | − 1.559 | 0.127 |
Mandibular transverse width differences—premolar | ||||||
Premolar (mm) | − 1.27 ± 2.47 | − 2.43, − 0.12 | 7.77 ± 3.56 | 6.10, 9.43 | − 9.334 | 0.000* |
Buccal alveolar crest (mm) | − 0.77 ± 2.55 | − 1.96, 0.43 | 8.22 ± 2.77 | 6.92, 9.51 | − 10.667 | 0.000* |
Buccal midalveolar (mm) | − 1.28 ± 3.07 | − 2.71, 0.16 | 8.32 ± 3.48 | 6.69, 9.95 | − 9.247 | 0.000* |
Lingual alveolar crest (mm) | − 1.06 ± 2.81 | − 2.37, 0.26 | 7.51 ± 4.99 | 5.17, 9.85 | − 6.687 | 0.000* |
Lingual midalveolar (mm) | − 1.18 ± 3.62 | − 2.87, 0.52 | 9.46 ± 4.53 | 7.34, 11.57 | − 8.198 | 0.000* |
Mandibular transverse width differences—molar | ||||||
Molar (mm) | − 1.43 ± 1.89 | − 2.31, − 0.54 | 6.42 ± 2.30 | 5.34, 7.49 | − 11.785 | 0.000* |
Buccal alveolar crest (mm) | − 1.17 ± 2.15 | − 2.17, − 0.17 | 7.72 ± 2.57 | 6.52, 8.92 | − 11.876 | 0.000* |
Buccal midalveolar (mm) | − 1.59 ± 2.28 | − 2.87, − 0.30 | 8.44 ± 3.17 | 6.95, 9.92 | − 10.691 | 0.000* |
Lingual alveolar crest (mm) | − 1.25 ± 2.28 | − 2.31, − 0.18 | 8.40 ± 2.23 | 7.36, 9.44 | − 13.553 | 0.000* |
Lingual midalveolar (mm) | − 1.02 ± 2.64 | − 2.25, 0.22 | 9.76 ± 2.78 | 8.46, 11.06 | − 12.554 | 0.000* |
Angular measurements | ||||||
Maxillary teeth inclination differences (°) | ||||||
Premolar (°) | − 1.12 ± 4.39 | − 3.17, 0.94 | 5.37 ± 7.35 | 1.93, 8.80 | − 3.385 | 0.002* |
Molar (°) | − 3.74 ± 4.90 | − 6.03, − 1.44 | 9.10 ± 9.92 | 4.46, 13.75 | − 5.189 | 0.000* |
Mandibular teeth inclination differences (°) | ||||||
Premolar (°) | 1.57 ± 5.84 | − 1.17, 4.30 | − 10.06 ± 6.90 | − 13.28, − 6.83 | 5.748 | 0.000* |
Molar (°) | 0.48 ± 6.66 | − 2.63, 3.59 | − 8.18 ± 8.05 | − 11.94, − 4.41 | 3.707 | 0.001* |