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(Left) Image of the birth-death FEM model with brackets and an archwire with a 0.45-mm step bend to intrude the lateral incisor. (Top right) Meshed FEM model. (Middle right) Initially, wire is modeled to have a 0.45-mm step bend. (Bottom right) At the end of simulation, wire is inserted in the slot and the lateral incisor is intruded.
