title: Proposed reference point for 3-dimensional cephalometric analysis with cone-beam computerized tomography.
abstract: BACKGROUND
  The purpose of this article is to propose a reference landmark for use in 3-dimensional cephalometric analysis with 3-dimensional volumetric images.
  
  
  METHODS
  Cone-beam computerized tomographies were obtained from 10 adolescent patients. They were analyzed with AMIRA software (Mercury Computer Systems, Berlin, Germany).
  
  
  RESULTS
  The proposed reference point is located between both foramina spinosum.
  
  
  CONCLUSIONS
  This point has high intrareliability and is an adequate landmark for use as a reference in 3-dimensional cephalometric analysis.
authors.affiliation: Orthodontic Graduate Program, Faculty of Medicine and Dentistry, Dentistry/Pharmacy Centre, University of Alberta, Edmonton, Canada. mlagravere@yahoo.com
authors.forename: Manuel O
authors.initials: MO
authors.lastname: Lagravère
authors.forename: Paul W
authors.initials: PW
authors.lastname: Major
mesh_terms: D000293:Adolescent; D002508:Cephalometry / Q000379:methods / Q000592:standards*; D006801:Humans; D021621:Imaging, Three-Dimensional; D012015:Reference Standards; D013100:Sphenoid Bone / Q000033:anatomy & histology*; D036542:Tomography, Spiral Computed