For patients with crowded teeth, we sometimes perform IPR (interproximal reduction) before Invisalign. This simply means gently creating a tiny amount of space between certain teeth so they have room to move, rotate, and align properly. Without that space, the teeth can’t shift into their ideal position. The good news? Those gaps are part of the process. As your Invisalign trays continue moving your teeth, the spaces gradually close. Temporary space → properly aligned teeth → a healthier, straig