The prediction of the relation between anterior facial skeleton and sella turcica in Iraqi sample

Abstract

Background: The relation between the anterior facial skeleton and sella turcica may vary from individual toindividual, and the establishment of normal standards in different skeletal patterns will aid in the process ofeliminating any abnormality in such an important region. This study aimed to find the relation of the anterior facialskeleton to the sella turcica in different skeletal patterns and in both gender and also to find the most valid equationfor describing these relationships to be applied practically in different skeletal patterns.Materials and method: The sample consisted of “138” digital true lateral cephalometric radiographsrelated mostly to patients attended to the college of dentistry /Baghdad University with an age range “18-30” years,they classified into three skeletal patterns . Six cephalometric parameters in addition to shape of Sella Turcica weremeasured and assessed for each individual radiograph using AutoCAD program 2008.Results : The linear measurements that assess the relation of sella turcica to anterior facial skeleton in all skeletalpatterns showed a very highly significant gender differences; being larger in males than in females, while for theangular measurements, no gender difference were found. Among the three skeletal patterns only the “S-B Length”and the “ASB angle” showed a very highly significant difference. The Pearson’s correlation test in all skeletal patternsshowed a very highly significant positive correlation among “ S-N, S-A & S-B Length ” and among “ NSA, NSB & ASBangles”, however highly predictable regression equations in the three skeletal patterns were found for the first time inIraq between “ NSB & NSA angles ”.Conclusions: The introduction of valid predictable equations for the first time that can assess the relation betweenSella Turcica and anterior facial skeleton in Iraqi sample