What is IPR?
IPR stands for interproximal reduction. It means reducing a very small amount of enamel between selected teeth to create space or improve tooth shape relationships. Not every patient needs it.
What tools are used for IPR?
Orthodontists may use hand strips, abrasive strips in a holder, powered strips, discs or other systems designed specifically for controlled enamel reduction. The exact system varies by clinician preference and the amount of space needed.
How does the orthodontist control the amount?
The aim is not guesswork. The amount is planned, often in tenths of a millimeter, and the clinician may use measuring gauges or the treatment setup to guide how much is removed. That is why it should be done by a trained professional rather than improvised at home.
What does IPR feel like?
Patients often notice vibration, pressure or a scraping sound more than pain. Some people are surprised by the noise, but the amount of enamel reduction is small and controlled. Sensitivity should be discussed with your own clinician if it occurs.
Why are polishing and finishing important?
After IPR, the contact area is smoothed so the surface is finished properly. Good technique matters because the goal is a clean, controlled shape — not a rough gap.
What should you ask after IPR?
Ask how much space was planned, why IPR was chosen instead of extraction or expansion, and whether you need to expect any different cleaning or sensitivity afterward.
Sources & further reading
- AAO glossary — Terminology related to enamel reduction and orthodontic treatment.
- AAO FAQs — General consumer orthodontic information including common procedures.
These references support general information. Your own dentist or orthodontist should make recommendations for your specific teeth, gums, appliance and treatment plan.