Another 1 month (2 months post banding), the right canines (Fig.14: 3) occlude each other, while LR2 has full engagement into .016 niti wire (compare to Fig.12,13).  Open coil springs are placed with upper .018' ss arch wire.  It must be easier to gain space for UR 2 than UL2, because of the presence of space on the right side (distal to UR3).

Severe Crowding

Xin Wei, DDS, PhD, MS 1st edition 08/03/2016, last revision 10/01/2016