Techniques to Distal Rotate Mesially Rotated Maxillary First Molars Use Mulligan Horizontal Mechanics. 7 • Bracket and band the anterior teeth and molars only (partial appliance) (Fig. 4). • Use a round (.018 or .020) stainless steel archwire. • Place 45° toe-in bends mesial to the first molar bands and 45° in-bends distal to the cuspid brackets (Fig. 4). The maxillary first molars have distal rotated and the case now presents a Class I platform (Fig. 3). Use a Transpalatal Bar (TPB) (Fig. 5). 2,4 • Prepare the TPB to a passive state (Fig. 6). • The case shown in Figure 7 demonstrates a narrow arch and mesially rotated maxillary first molars producing a Class II platform. • Place 15° of toe-in on both terminal loops of the TPB (Fig. 8). The maxillary first molars have distal rotated and the case now presents a Class I platform (Fig. 9). www.orthodontics.com Fall 2016 9
Journal of the American Orthodontic Society Fall 2016: Page 9
