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Fig. 5 | Progress in Orthodontics

Fig. 5

From: Dimensional variability of orthodontic slots and archwires: an analysis of torque expression and clinical implications

Fig. 5

Images of archwires’ sections taken at 300× with a field emission gun scanning electron microscope under secondary electron modality. a 0.019 × 0.025″ stainless steel archwire from Group 1 (Astar Orthodontics Inc., Shanghai, China). b 0.021 × 0.025″ stainless steel archwire from Group 1. c 0.019 × 0.025″ stainless steel archwire from Group 2 (Sia Orthodontic Manufacturer S.r.l., Rocca D’Evandro, Caserta, Italy). d 0.021 × 0.025″ stainless steel archwire from Group 2. e 0.019 × 0.025″ stainless steel archwire from Group 3 (Sweden & Martina S.p.A, Due Carrare, Padova, Italy). f 0.021 × 0.025″ stainless steel archwire from Group 3

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