Your Invisalign orthodontist will say how long does it take for Invisalign to work after your oral examination. A patient with minor teeth deformation may get the desired teeth straightening result within a few weeks of taking Invisalign treatment. They can feel their teeth are moving within a few days after wearing Invisalign aligners. It is the same when you change braces as your teeth correction happens. A patient with major teeth deformation might take more than 1-year to see the desired teeth correction result. Such patients can also feel Invisalign is working within a few days after fixing them on their deformed teeth. Invisalign is an evidence-based dental procedure. Hence, a patient can see digital X-rays, photos, and scan images to see how Invisalign works after taking treatment. Your Invisalign doctor will suggest when to stop wearing Invisalign braces or to wear Invisalign retainer after your Invisalign treatment is over. A patient with minor teeth correction will get a complete cure within a year. A patient with high teeth deformation may take more than 1-year to see the desired result. Hence, 12 to 18 months may require if your oral health is bad. However, some patients got their teeth corrected within a year. Their oral health is good when they are approached for Invisalign treatment in such a case.