The Soft Tissue Changes Following Orthodontic Treatment of Bimaxillary Protrusion (A Clinical and Photographical Study)


Background: Bimaxillary protrusion is considered as one of the most important causes to seek the orthodontictreatment to get better esthetics. This study aimed to test the effect of orthodontic treatment in improvement thefacial esthetics.Materials and Methods: Ten Iraqi Arab females having bimaxillary protrusion based on Class I malocclusions treatedwith fixed orthodontic appliance and extraction of the maxillary and mandibular 1st permanent premolars. Pre andpost-treatment facial profile photographs were taken for each patients and the effect of treatment was tested incomparison with the pre-treatment photographs by using seven angular measurements.Results: After treatment, the upper and lower lip projections were decreased significantly, the naso-labial andmento-labial angles were increased significantly.Conclusion: Treatment of bimaxillary protrusion with fixed orthodontic appliances and extraction of four premolarsimprove the facial esthetics of the patients by decreasing the lip projection and increasing the naso-labial andmento-labial angles