الفهرس 
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Abstract
The purpose of this study was to compare deep overbite correction using auxiliary cantilever springs to relative intrusion during initial stages of orthodontic treatment.
Thirty patients exhibiting deep overbite malocclusion were divided into test and control groups. Test group received auxiliary cantilever springs on top of leveling arches to intrude lower incisors. Control group received sequential leveling archwires. Treatment effect was evaluated after six months by using lateral cephalometric radiographs to assess incisors, molars and premolars changes. Comparison between T0 (preoperative) and T1 (6 months postoperative) within each group was done using paired samples T-test, while comparison of mean difference of different parameters between both groups was done using Mann-Whitney U test at P ≤0.05