IPR
Inter proximal reduction (IPR) is often used to make aligning space, correct tooth size ratio and adjust molar relationship.
To apply IPR, please click IPR and click any of interproximal buttons.

You can change the amout of IPR by clicking upper or lower arrow. The teeth will be automatically re-aligned according to the new IPR values. Negative values indicates iter-proximal spacings. The value changes by 0.1 mm for every Click, and it changes by 1.0 mm for every Ctrl + click.