Biomechanical analysis of the effect of Class II traction configurations and aligner overtreatment on molar distalization: a finite-element study.

We suggest that Class II elastic traction via the precision-cut configuration and the design of vertical attachment on the second molar be applied for molar distalization. Appropriate aligner overtreatment helps achieve bodily molar distalization and minimizes adverse biomechanical effects on anchorage teeth.