Fig.10: There is no tension (bending) of wire between the teeth #2 and 3 in the final stage (arrowhead; as compared to Fig.7).

The bracket of the tooth #2 was not correctly placed.  The tooth appears to rotate.  The proximal contact between #2 and 3 is not correct (pointed contact).  The rectangular wire is then replaced by a round wire.  Power chain of 2 is placed between the buccal tubes of #2 and 3 bands.  In one month, the rotation is corrected (Fig.16). Return to original article

Xin Wei, DDS, PhD, MS 1st edition 12/23/2012, last revision 10/22/2013