An open coil spring is used when the wire changes to 18 ss nearly 2 months post banding (Fig.5,6).  Composite is placed to have clearance for UL7 to be distalized (Fig.5 *).  To have the best anchor involving the implant at UL2, ligature wire is used between UL2-5 (Fig.6).

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Xin Wei, DDS, PhD, MS 1st edition 06/15/2018, last revision 03/22/2020