Correction of class II division I malocclusion after extraction using Roth prescription

Abstract

A 19-year-old female patient with convex profile, posterior divergence having Angle's class II division 1 malocclusion with incompetent lips and rotations in various teeth was treated with fixed mechanotherapy. All the first premolars were extracted. Roth prescription of 0.022"×0.028" slot was used. Proximal stripping was performed to correct a black triangle in the embrasure area in the upper anteriors. The entire treatment took about 15 months.