Fig.18 (taken 6.5 months post-banding; 2.5 months post installation of .016x.016 stainless steel wires and closed springs between U3 and 6): U3 moves to Class I position (dashed lines).  Our next main job is to move the upper incisors posteriorly (arrow).  The present wires are .016x.022 stainless steel.  The next upper wire will be .018x.025 posted one.

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Xin Wei, DDS, PhD, MS 1st edition 05/10/2014, last revision 05/10/2014