Year : 2017

Volume : Volume 7

Issue : Issue 2

Address for correspondence :
Dr. Vincy Antony
vincyantony2008@yahoo.com

Abstract

Aim:  The aim of the study was to retrospectively evaluate the dentofacial changes obtained with two orthodontic treatment systems in the treatment of Class I bimaxillary dento-alveolar protrusion patients. The objective was to find if there was any advantage of using any particular treatment system in treatment of Class I bimaxillary dento-alveolar protrusion. Materials and Methods: The data for the study was obtained from pre and post-treatment lateral cephalograms of twenty patients, of whom ten each were treated with Begg light wire technique and pre adjusted edgewise appliance. Pre and post-treatment parameters on lateral cephalograms were compared using Wilcoxon Signed Ranks test.  Results: All linear and angular parameters pertaining to hard and soft tissues showed significant changes, indicating comparable retraction of upper and lower incisors, upper and lower lips, an increase in nasolabial angle and decrease in circumoral convexity.  Conclusion: In the present study, judicious use of mechanics and orthodontic forces gave good clinical results with comparable hard and soft tissue changes, following four first premolar extractions in bimaxillary dentoalveolar protrusion patients in both treatment systems. The study showed no significant changes except for a slight difference in treatment duration between these appliance systems.

Keywords: Bimaxillary dento-alveolar protrusion, cephalometric appraisal, orthodontic retraction, Begg Light wire appliance, PEA.