How Long Does It Take Before Invisalign Starts Working. It is unrealistic to see changes in one to two weeks. Invisalign is an orthodontic treatment that uses no brackets or wires to move teeth, only clear, removable alignment trays.
Most people start noticing some movement, however, within the first two months after getting their first set of aligner trays. Invisalign progress is important to everyone involved, so it doesn't surprise me when people complain that their invisalign is not tracking according to their treatment plan. Once your provider gets it, if he/she is not happy.
The majority are between 6 months to a year and a half, in my experience.
In cases with mild gaps, the process can sometimes take as little as eight weeks. Invisalign may take from 12 to 18 months whereas braces may take 2 years or more to straighten the teeth. When the cases are more severe, then the timeline is often longer, but almost always still less than 12 months. It is unrealistic to see changes in one to two weeks.