What is Interproximal Reduction (IPR) & How It Works


IPR, or Interproximal reduction is a quick and not complex orthodontic procedure made for changing the shape and size of the teeth, mostly on the sides where they touch each other. For clear aligners treatment the IPR is made to create space to allow teeth to move.

  • How is IPR Performed?

    Your teeth area made of tooth enamel, dentin, the pulp and nerves, and blood vessels. During IPR, the orthodontist removes the part of the outer surface, or the enamel, usually between teeth that touch in order to create space between movements.

  • How Do Orthodontists Remove the Enamel?

    After your orthodontist identifies where he wants to perform IPR, he will begin the removal of the enamel either manually with diamond strips, or with the aid of an especially-designed dental hand piece. Your orthodontist will then carefully remove the required amount of enamel, leaving sufficient enamel for the tooth to remain healthy.

Crowding Case Teeth Straightening using eon Aligners: Crowding case with eon Aligner

The IPR procedure is an essential part of teeth straightening treatment using aligners, where malocclusion cases such as crowding are primarily only mild to moderate severity and removing teeth is not an option. Interproximal reduction not only elliminates crowding, it also creates smooth, straight surfaces. Studies show that the usage of IPR doesn't provoke any tooth decay, and no increase in sensitivity in the future. You always may consult your orthodontist if interproximal reduction is needed for your particular case.


To start the journey to your perfect smile, fill eon Aligner form, so eon Aligner consultant will contact you directly and advise an eon Aligner certified Orthodontist near you.

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