It is important that you understand how Invisalign works to straighten your teeth.  Please use this section to see Invisalign FAQs regarding its treatment process:

Through the use of our patented thermoplastic design, Invisalign aligners move your teeth through the appropriate placement of controlled force. The main difference is that Invisalign not only controls the force, but also the timing of the force application. During each stage, only certain teeth are allowed to move. These movements are determined by your doctor as he or she maps out your unique Invisalign treatment plan.
Invisalign aligners are virtually invisible. No one may even notice that you’re wearing them, making Invisalign a seamless fit with your lifestyle. Invisalign aligners are removable. For the best results and a timely outcome, aligners should be worn for 20 to 22 hours per day. However, unlike with braces, you have the flexibility to remove your aligners to eat and drink what you want during treatment. And you can also remove the aligners to brush and floss as you normally would, for fresh breath and good oral hygiene. There are no metal brackets or wires that could cause irritation to your mouth, an advantage over traditional braces. Plus, since your office visits during treatment don’t involve metal or wire adjustments, you’ll likely spend less time in the doctor’s chair. Invisalign allows you to view your virtual results and treatment plan before you start so you can see how your straightened teeth will look when your treatment is complete. Instead of imagining how much better it can be, you’ll be able to see it for yourself.
The virtually invisible aligners, which are made of a thermoplastic material uniquely developed for the Invisalign treatment plan, look similar to teeth-whitening trays. A series of Invisalign aligners are custom-made for you, to move your teeth in the sequence determined by your doctor.
The length of treatment depends on the severity of your case and can only be determined by your doctor; however, the average case takes about 12 months for adults. The length of time necessary for a teen patient may vary and can be determined by your doctor.
We find that aligners are most effective when worn 20 to 22 hours per day and removed only for eating, brushing and flossing.