You will need to wear retainers after your Invisalign treatment to prevent your newly straightened teeth from returning to their original position. You may have to wear them for at least 22 hours a day for the first few months, and then only at night as time passes. If you are a new patient and are considering this treatment but are worried about the Invisalign cost, you can avail of our Invisalign free consultation so you can get all the information you need about Invisalign without obligations.