Three-dimensional computed tomography analysis of airway volume changes after rapid maxillary expansion.

Introduction: In this retrospective study with 3-dimensional computed tomography, we evaluated airway volume, soft-palate area, and soft-tissue thickness changes before and after rapid maxillary expansion in adolescents. Another purpose was to determine whether rapid maxillary expansion caused changes in the palatal and mandibular planes and facial height.

Methods: The sample comprised 20 patients who were treated with rapid maxillary expansion.