TWIN FORCEBITE CORRECTOR DEVICES " A " MEASUREMENT FOR DOUBLE LOCK MINIMUM (MM) 23 27 MAXIMUM (MM) 32 36 ITEM NUMBERS 424-216Ti 424-215Ti Figure 1. Figure 2. Twin Force Bite Corrector Anchor Wire* Class II " A " Measurement = Distal edge of the lower cuspid bracket to the distal end of the upper molar facebow tube (Figure 3). Class III " A " Measurement = Distal edge of the upper cuspid bracket to the distal end of the lower 1st molar lip bumper tube (Figure 4). " A " MEASUREMENT FOR ANCHOR WIRE MINIMUM (MM) MAXIMUM (MM) ITEM NUMBERS 27 32 36 48 424-211Ti 424-210Ti Figure 3. Figure 4. *May be used in conjunction with facebow tubes on pages G-8 to G-15. Toll Free: 800.547.2000 HenryScheinOrtho.com K-5 INTRAORALhttp://www.HenryScheinOrtho.com