1 results match your criteria: "Department of Orthodontics Peking University Stomatological Hospital[Affiliation]"
[Cephalometric comparison of hard-tissue morphology between extraction and non-extraction orthodontic treatment in borderline cases].
Beijing Da Xue Xue Bao Yi Xue Ban
December 2003
Department of Orthodontics Peking University Stomatological Hospital, Beijing 100081, China.
Objective: To compare hard-tissue morphology by cephalometric measurements between extraction and non-extraction orthodontic treatment in borderline cases.
Methods: The samples consisted of 33 cases selected as borderline cases by 5 orthodontic specialists. They were divided into 21 extraction cases (including 13 four first premolar extraction cases and 8 second premolar extraction cases) and 12 nonextraction cases by checking patients' treatment records.