Designing Orthodontic Craniofacial Templates for 8-14 year-old Iranian Girls Based on Cephalometric Norms

Objectives: cephalometry and its related analyses have an important role in the evaluation of orthodontic patients. access to an analysis that gives maximum in-formation in the least possible time is an effective way to indicate craniofacial disharmony; therefore, craniofacial templates are very useful tools. the purpose of the present study was to provide orthodontic craniofacial templates for 8-14-year-old iranian girls.materials and methods: one thousand two-hundred and nine girls (age range, 8-14 years) were examined. eighty of these cases were finally chosen for the study and their lateral cephalograms were traced. both basion-nasion (ba-n) and sella-nasion (s-n) lines were selected for superimposition in this study. based on these two mentioned lines, a template for each age was designed. simple linear regres-sion and multivariant regression analysis were used to evaluate the angles and to landmark the vectors, respectively.results: findings show that most points change significantly at different ages in the s-n method. in the ba-n method, all points except for s and ba have signifi-cant changes at different ages.conclusion: templates that resulted from both methods were the same and altera-tion in the reference line and points does not change the total form of the average tracings of each age.