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Three and a half months later, alignment improves (Fig.3-5). The present wires are .018" stainless steel (ss), which will be changed to .020" ss. Next visit .016x.016" ss wires will be used. Two closed coil springs are placed between LR4 and 7 (Fig.4) and LL3 and 6 (Fig.5). The upper teeth will be retracted once the lower counterparts have achieved initial movement. Mini-implants are expected to be placed for upper retraction the following visit.
Xin Wei, DDS, PhD, MS 1st edition 03/29/2015, last revision 01/02/2021