Class II elastic retraction when arch wires reach 18 ss may be able to move the lower arch forward (Fig.6 arrow) and/or move the upper one backward (take care of Class II malocclusion (Fig.8,10) and lip profile).
Class II Malocclusion & Microdontia Last Next
Xin Wei, DDS, PhD, MS 1st edition 01/01/2017, last revision 05/06/2018