Fig.12: Mid-treatment pictures
The first refinement consisting of nine sets of aligners were ordered, since the bite closure on the lateral incisor was inadequate. Bootstrap mechanics was applied to the upper lateral incisors using palatally placed lingual buttons and elastics running to the cleat on the aligners in order to extrude them reliably. (Fig. 13) A final refinement consisting of five sets of aligners were ordered to refine the inclinations and angulations of all the teeth and settle the occlusion in the best possible way. Aligners during the refinement stages were worn at the rate of one aligner/week.