Lower Incisor position
We recommend to determine ant-posterior position of the lower incisor first because it is an inportant factor to establish a good facial profile and assess the arch length discrepancy.
To show lower incisor controls, please click the lower arch button.

Then the arrows to control the lower arch will be shown. You can move the arch ant-posteriorly using the red arrows.

Once you click any of these arrows, the teeth will be aligned according to the current settings, and you can see how much arch length discrepancy exists on upper and lower dentition. The vertical position and midline are also adjustable.
You can also show cephalometric VTO and refer ceph analysis to determine the lower incisor position. Please see Cephalometric VTO for more information.