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UR 4 and LR5 appear to be candidates for extraction (Fig.6 x). Upper midline deviation to the left needs space on the right to be corrected.
In fact, automatic shifting is striking 2 months post extraction. For example, distalization of the lower 1st bicuspid and canine is more obvious (Fig.13 arrows) than the upper canine.
Xin Wei, DDS, PhD, MS 1st edition 02/04/2018, last revision 10/03/2020