The vertical clamp can clamp the depression in the proximal or distal buccal/lingual side of the twisted tooth to solve the over correction of the twisted tooth. A pair of depressions can also be pressed at the relative positions of the buccal and lingual sides of the torsion teeth to form a torsion couple. You can also press a dent on a certain tooth position to generate a light thrust to correct slight lip and tongue misalignment.