Interproximal Reduction — NDEB AFK MCQ
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Correct answer: A — To create space by removing small amounts of enamel from between teeth without extractions
Interproximal reduction (IPR, enamel stripping/slenderising) involves controlled removal of small amounts of interproximal enamel (typically 0.2-0.5 mm per surface) to create space for alignment without extraction. It is indicated for mild to moderate crowding, Bolton discrepancy correction, and post-orthodontic black triangle reduction. IPR is performed using abrasive strips, discs, or fine burs under magnification. Total enamel thickness must be assessed to ensure adequate residual enamel (typically >50% should remain).
Reference: Proffit – Contemporary Orthodontics, 6th ed., 2019