The patient started with .016 copper niti wires and went directly to SS wires at her last visit. I ordered three wires for this case at the start of tx. Wire 1 is the plan wire with slot fill and a slight modification of the wire. I added intrusion of the upper and lower 7's of .2 mm and did .1 mm intrusion of all 4 6's. This is a control feature for open bite cases and it is something I just started with these cases. It makes sense. Wire 2 is a copy of wire 1 with extrusion of the upper and lower 3 to 3 of .5 mm. This is the wire I placed at the second appt. Wire 3 is a 16X22 version of wire 2 (upper only). I thought I might need it due to the amount of the upper extrusion but decided not to use it.