U1 – Upper Central Incisors
12° Torque 5° Tip 0° Rotation
- The standard torque prescription selected when central incisors
are in good position with minimal requirements for treatment mechanics
17° Torque 5° Tip 0° Rotation
- Selected for division 2 cases
- Cases needing extensive Class II elastics – prevents
loss of torque control resulting from elastic wear
- Most extraction cases to prevent loss of torque control
when retracting anterior teeth
7° Torque 5° Tip 0° Rotation
- Centrals requiring extensive uprighting
- Case needing extensive Class III elastics – prevents
loss of torque control resulting from elastic wear
- Extreme crowding cases combined with anterior tongue thrusting
or thumb – finger habit
- Where extensive arch length needs to be gained and the incisors
have near normal torque angulation
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