title: Cephalometric norms in an Arabic population.
abstract: OBJECTIVE
  To identify cephalometric norms for a Jordanian population.
  
  
  METHODS
  A cross sectional study using a sample selected on the basis of a balanced face and a Class I occlusion.
  
  
  METHODS
  65 subjects aged 14-17 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 4.6 mm further forward in relation to A-Pog in Jordanians.
authors.affiliation: University of Jordan, Amman, Jordan.
authors.forename: A M
authors.initials: AM
authors.lastname: Hamdan
authors.forename: W P
authors.initials: WP
authors.lastname: Rock
mesh_terms: D000293:Adolescent; D018912:Arabs / Q000706:statistics & numerical data*; D002508:Cephalometry / Q000592:standards*; D003766:Dental Occlusion; D005147:Facial Bones / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D007597:Jordan; D008297:Male; D011857:Radiographic Image Interpretation, Computer-Assisted; D012015:Reference Standards; D012016:Reference Values