A 12-year-old woman has Class I facial profile (Fig.1-4) and apparently Class II Division I malocclusion (Fig.6-11).  Start Class II retraction as early as possible to take advantage of the upper and lower posterior diastemata (Fig.9,11).

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Xin Wei, DDS, PhD, MS 1st edition 06/17/2020, last revision 06/21/2020