Figure 9.

a-d. Asymmetric maximum anchorage bidimensional system in place; with hooks crimped distal to premolars, uprighting springs on premolars and full engaged 0.018 x 0.022 SS wire with elastic module from molars to arch crimped hook

a-d. Asymmetric maximum anchorage bidimensional system in place; with hooks crimped distal to premolars, uprighting springs on premolars and full engaged 0.018 x 0.022 SS wire with elastic module from molars to arch crimped hook