What percentage of Invisalign patients require refinements?

In my practice I would say that 75-80% of all invisalign patients in my practice and I have started over 400 cases require at least one refinement, as we use it as a way to tidy things up at the end.  Hope this helps

in my practice as an invisalign premiere provider elite , i have found that at least 80% of my patients require at least 1 refinement