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Scientific Section |
1 University of Jordan, Amman, Jordan
1 University of Birmingham, Birmingham, UK
Abstract
Aim: To identify cephalometric norms for a Jordanian population.
Design: A cross sectional study using a sample selected on the basis of a balanced face and a Class I occlusion.
Materials and Methods: 65 subjects aged 1417 years were selected from a larger sample on the basis of Class I incisors, a balanced profile and no previous orthodontic treatment. Lateral skull radiographs were digitised directly to produce values for SNA, SNB, ANB, UI/MX, LI/MN, UI/LI, MMPA and LI/A-Pog.
Results: SNA and SNB were very close to the Eastman Standards. MMPA was significantly lower in Jordanians whilst UI/MX and LI/MN were significantly higher. Lower incisors were 46mm further forward in relation to A-Pog in Jordanians.
Key words: Cephalometry, Standard values
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