Changes of pharyngeal airway size and hyoid bone position following orthodontic treatment of Class I bimaxillary protrusion.
Changes of pharyngeal airway size and hyoid bone position following orthodontic treatment of Class I bimaxillary protrusion.
Conclusions: The pharyngeal airway size became narrower after the treatment. Extraction of four premolars with retraction of incisors did affect velopharyngeal, glossopharyngeal, hypopharyngeal,
and hyoid position in bimaxillary protrusive adult patients. (Angle Orthod. 2012;82:115–121.)