|
|
Spaces are created 3 months post extraction and 2 months post retraction with power chain (between UR 3 and 6, LR 4 and 6; Fig.5 (16x16 wires)). Next visit pay attention to midline changes. Retract the next mesial teeth (UR2, LR 3) when UR3 and LR4 distalize by 3/4 and 4/5 mm, respectively.
Xin Wei, DDS, PhD, MS 1st edition 07/08/2017, last revision 10/21/2018