How long does Invisalign® Treatment take?

Posted Jul 11th, 2018

How long does Invisalign® Treatment take?

Invisalign® is an inconspicuous option for straightening teeth for those who are wary of the aesthetics of metal braces. Here, our Calgary dentists explain approximately how long the Invisalign® process will take.


Invisalign® is a series of clear plastic aligners that straighten teeth in tiny increments over a period of months. In this way, they're just like metal braces, but they have the added benefit of being far less obvious when worn.

For adults, the average Invisalign® treatment course takes about a year and the average for teens is a little longer than that. However, each patient is different and there are a variety of factors that could impact the duration of your own Invisalign® treatment.

The Severity of Your Misalignment

If your teeth are severely misaligned, it will take longer to straighten them with Invisalign®. This is the case with braces too, but with Invisalign®, the severity of your misalignment will also determine the number of aligners in your treatment. 

The Number of Aligners in Your Series

Invisalign® treatment is made up of a series of aligners and each set of aligners need to be switched out for the next one one every other week. If you already know how many aligners there are in your series, then you just need to do some simple math to find out how long your treatment will take:

Let’s assume you have 16 sets of aligners.

You have to switch them out every two weeks, so that’s two sets of aligners each month.

16 divided by 2 is 8, so that means your treatment will take 8 months.

Your Compliance to Treatment

Your decisions during your treatment process will play a vital role in how long it ends up taking. At the outset of the process, your dentist will estimate how long treatment will take. To help make sure treatment goes according to plan (and doesn't take longer), be sure to wear you aligners as your dentist has prescribed.

During your Invisalign® treatment, you must wear your aligners full time every day. That means approximately 22 hours a day of aligner wear.

Doing this will ensure that your treatment is not delayed. If you leave your aligners out for too long, or too often, your teeth may shift back out of position, resulting in delays and setbacks. Thus, be sure to remove your aligners only to eat, brush and floss… and don’t forget to put them back in when you're done!

How long before I start noticing results?

Most patients begin to see results from their Invisalign® treatment around the 4 - 6 week mark. It can be helpful to take a picture of your smile each week, so that you can get a better idea of how much your teeth are moving.

Interested in trying orthodontic treatment with Invisalign®? Contact our Calgary dentists at Go Dental today to book a consultation!

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