A premolar band (B in Fig.5) was cemented to the temporary crown of #19. In another two months, the tooth #18 was pushed to desired position (arrowhead) under the tension of open coil spring (*). The mesial crest height of #18 was increased during uprighting (arrow, as compared to Fig.3). Return to main article
Xin Wei, DDS, PhD, MS 1st edition 05/02/2011, last revision 05/03/2011