Hyoid bone position in patients with Angle Class Ⅰ or Class Ⅲ malocclusions and early permenent dentition / 实用口腔医学杂志

ABSTRACT

Objective:To investigate the hyoid bone position on the cephalometric radiographs of patients with early permenant dentitions and Class I or Class Ⅲ malocclusion.Methods:The cephalometric radiographs were taken in centric occlusion and 16 measures were performed on tracing in 30 cases of Class I malocclusion and 30 of Class Ⅲ, the data were statistically analysed.Results:At-APH and S-APH in Class I malocclusion were shorter than those in Class Ⅲ(P