Introduction to IPR

Definition 

Interproximal reduction (IPR) (also called interproximal enamel reduction (IER) / slendering, air rotor stripping (ARS) or reproximation) is the practice of mechanically removing enamelfrom between the teeth to achieve orthodontic ends, such as to correct crowding, or reshape the contact area between neighbouring teeth.

After reducing the enamel, the procedure should also involve anatomic re-contouring and the protection of interproximal enamel surfaces.

It involves removing a tiny amount of enamel from tooth surfaces between two adjoining teeth to create space. The clear aligners use this space to align the crowded teeth in the most natural way.