After Doing Full Invisalign Treatment, What Does It Mean to Need a "Refinement"?

A refinement is sometimes necessary to
complete a case if it is not ideal after going through the first set of
aligners. It recaptures the teeth and allows final details to be corrected.

It is common to do "refinement" and/or "mid-course correction" with Invisalign since one or more teeth may not "track" exactly as planned. Usually this does require new impressions and re-submission to the Invisalign laboratory so the new series of aligners can be planned in detail . In most orthodontic practices it is assumed that more than one aligner series will be required for each patient so the fee takes that in to account. I doubt you will incur additional costs for "refinement", but it never hurts to ask!