Effects of Fränkel II appliance on sagittal dimensions of upper airway in children / 华西口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>The purpose of this study was to investigate the effects of Fränkel II appliance on the upper airway of children.</p><p><b>METHODS</b>The subjects consisted of 20 patients with Angle Class II, division I malocclusion (10 males and 10 females). The ages of all cases were ranged in 9-10 years. Each experimental subject was also served as self-control and cephalometric analysis was conducted.</p><p><b>RESULTS</b>Compared with the results of pretreatment, the distance of PNS-Ba, SPP-SPPW, P-T, V-LPW and the Mcnamara line increased remarkably.</p><p><b>CONCLUSION</b>The Fränkel II appliance can improve the sagittal dimensions of the upper airway in children.</p>