Fig.7: The alignment of the upper right sextant improves under the tension (bending) of the wire (white arrowhead) as well as elastics, as mentioned before.  The tooth #2 is being moved lingually.  In fact, elastics are also placed between #3 lingual cleat (yellow arrowhead) and #30 buccal hook to improve #3 buccolingual position and/or inclination (as compared to Fig.4). Return to original article

Xin Wei, DDS, PhD, MS 1st edition 12/23/2012, last revision 12/23/2012