After asking a few offices about their Retainer fee policy I have learned that all offices can be different in their fees as well as to their decision to include retainer fees or not. In our office we include retainer fees in our normal Invisalign fee. The average fee for Invisalign...
They may need to have a little button placed on them and then a clear elastic placed down onto the aligner to pull them down into place. Sounds complicated but its really not. My patients have done it found it very easy to manage.