Invisalign IPR (Stripping): A Complete Guide

During your Invisalign treatment, your provider might mention the term "IPR" or "stripping." While it may sound intimidating, this is a common, controlled, and painless orthodontic procedure. It is often essential for achieving a perfectly aligned smile.

What Is Dental Stripping (IPR)?

IPR, which stands for "Interproximal Reduction," consists of removing a tiny amount of outer tooth enamel (between 0.1 and 0.5 millimeters) from the sides of certain teeth. The goal is to create a minimal but sufficient amount of space to allow the teeth to move and align correctly.

Why Is IPR Necessary?

This technique is used in specific situations to ensure the success and stability of the treatment.

To Create Space

This is the most common reason. When teeth are crowded and overlap due to a lack of space in the dental arch, IPR allows the provider to gain the necessary fractions of a millimeter to resolve the crowding. It is a much more conservative alternative to extracting healthy teeth.

To Improve Aesthetics and Contact Points

Sometimes, after teeth are aligned, small black triangular spaces can appear near the gumline due to the shape of the teeth. IPR can be used to slightly reshape the contact points between the teeth, making them wider to close these "black triangles" and achieve a more aesthetic and seamless result.

What Happens During an IPR Session?

IPR is a quick and precise procedure performed by your provider. They may use two methods:

• Abrasive Strips: Thin, flexible strips, similar to fine-grit sandpaper, are manually passed between the teeth.
• Polishing Discs or Burs: Used with a dental handpiece, these allow for a quick and controlled reduction.

The procedure is always performed with great precision to remove only the exact amount of enamel needed, which was planned in advance using your 3D treatment simulation.

Frequently Asked Questions About IPR

Is IPR Painful?

No, the procedure is generally painless. Tooth enamel has no nerves. You might feel a vibration or pressure sensation, but not pain. For the most sensitive patients, a topical anesthetic can be applied for total comfort.

Does It Damage Teeth?

When performed by a trained professional, IPR is a safe procedure. The amount of enamel removed is minuscule and does not weaken the tooth or increase the risk of cavities, provided you maintain good oral hygiene.

Is IPR Always Needed with Invisalign?

No, absolutely not. IPR is only prescribed when necessary. If you already have spaces between your teeth (like in cases of gap teeth), this step will not be required. It all depends on the initial diagnosis and the treatment plan created for your specific case of teeth straightening.

Conclusion: A Precise Tool for a Perfect Result

Far from being an aggressive procedure, IPR is a modern, precise, and conservative orthodontic technique. It is one of the tools that allows Invisalign treatment to achieve an optimal level of finish and aesthetic perfection while avoiding more invasive solutions. If your provider recommends it, it is to ensure the best possible outcome for your smile.