Clinical Study
Changes in the Upper and Lower Pharyngeal Airway Spaces Associated with Rapid Maxillary Expansion
Table 1
Comparison between experimental and control groups at initial and final records.
| Parameters | RME Group (n = 30) | Control Group (n = 30) | P-value |
| Age (years) | 14.2 ± 1.3 | 13.8 ± 1. 5 | 0.28* | Gender | 16 B, 14 G | 16 B, 14 G | 1.0* | Treatment duration (months) | 30.2 ± 3.2 | 25.8 ± 3.3 | <0.0001 | Initial upper pharyngeal airway (millimeter) | 14.6 ± 1.9 | 15.4 ± 1.5 | 0.08* | Initial lower pharyngeal airway (millimeter) | 10.7 ± 1.5 | 11.3 ± 1.6 | 0.12* | Difference (pre/post) upper pharyngeal airway (millimeter) | 1.3 ± 1.1 | 0.5 ± 1.3 | 0.016 | Difference (pre/post) lower pharyngeal airway (millimeter) | 0.2 ± 1.0 | 0.4 ± 0.9 | 0.30* |
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B: boys, G: girls, *Not Significant ().
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