A provisional is fabricated 1 month postop to prevent the tooth #31 from rotation under the tension of the open coil spring, as mentioned above. Acrylic is added distal for #31 distalization nearly 2 months postop. More definitive orthodontic action begins 3 months postop (Fig.7, banding and open coil spring).
Upright Before & After Implantation Last Next 种植杂谈
Xin Wei, DDS, PhD, MS 1st edition 03/12/2016, last revision 07/28/2021