Interproximal reduction: a precise, gentle way to create space and reshape teeth.

Interproximal reduction (IPR) — also called tooth slenderizing, stripping or enamel reduction — is a precise orthodontic technique where a fraction of a millimeter of enamel is smoothed between teeth to reshape them and/or create just enough space for alignment. We use ultra-fine polishing strips or a handpiece to make tiny, carefully planned adjustments that improve alignment and esthetics.

IPR has several uses; we focus on where it adds the most benefit. Black-triangle reduction is the main reason we perform IPR.

• Reduces black triangles between teeth
• Improves esthetics by refining tooth shape and proportions
• Supports gum and bone health by reducing plaque and food traps
• Creates space without extractions in severe crowding (used sparingly — expansion and bite correction usually create the space needed)
• Refines the bite during Invisalign® or braces when tooth proportions are mismatched

• “IPR needs to be done.” We never insist on it and only recommend IPR if it benefits your smile, bite or gum health.
• “IPR weakens teeth.” Within safe limits, enamel remains strong and cavity-resistant.
• “It’s shaving teeth down.” No. IPR is done between the teeth, not on top. Teeth do not get shorter.
• “It causes cavities.” Smooth, polished contacts are not more cavity-prone with normal brushing and flossing.

• Black triangles between teeth
• Triangular or mismatched tooth shapes
• Crowding that doesn’t require extractions
• Bite discrepancies that align better with small enamel adjustments

IPR planning begins with a 3D digital scan. These images show how we virtually measure and simulate exactly how much enamel (in this case 0.2 mm) will be gently polished between the teeth, so IPR is precise, safe and customized before any procedure is performed.

We treat IPR as a precision tool, never a routine — we call it strategic IPR.

• Expert clinicians: Dr. Greenberg (Clinical Associate Faculty, University of Pennsylvania) and our team plan IPR with 3D digital imaging and precise measuring tools.
• Esthetics focus: straight teeth look best when shaped and proportioned correctly.
• Convenience: most IPR takes only a few minutes during your regular visits.
• Two locations — North Arlington and Jersey City — serving Bergen, Hudson and Essex Counties.