Vertical changes during Begg’s and PEA-A Comparative Study

The purpose of this study was to compare the vertical dimensional changes in bialveolar dental protrusion patients undergoing extraction of all four first premolars between the preadjusted edgewise appliance(PEA)(MBT) and the Begg appliance.The cephalometric records of 40 patients with Class I bimaxillary protrusion were selected and devided in two groups i.e Begg or PEA mechanotherapy.The age group of 18-25 years was selected for both groups.Skeletal and dental changes were analysed in both groups on lateral cephalograms taken pre (T1)& post (T2) treatment.A student t-test was used to analyse the treatment changes.Significant increase in face height and extrusion & mesial movement of lower molars within both groups were found.However no significant difference was found when the Begg mechano-therapy was compared to PEA Technique on vertical dimensional changes.