A Combination Preadjusted Edgewise Approach Treatment of Class I Bimaxillary Proclination with Upper and Lower First Premolars Extraction

Abstract

Angle Class I bimaxillary proclination case with midline discrepancy and crowding in upper and lower anterior teeth was treated with upper and lower first premolars extrac• tion usingO .018" Roth prescription .To simplify the treatment combination technology of Roth , Alexander and M8 T was used .