Fig.51 (intraoral frontal view, 7.5 month post bracketing, 16x22 ss U; 12 niti L): No power chains are used to close the diastemata among the upper teeth, since the anterior overjet is minimal. The tooth #10 of Adam's brother is in cross bite.  Class III retraction may be used to increase the overjet before and/or during closure of the diastemata for Adam.

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Xin Wei, DDS, PhD, MS 1st edition 11/29/2014, last revision 11/30/2014