Can Invisalign Aligners Stain?

Invisalign is a great way to straighten your teeth without having to wear fixed metal brackets and wires for a year or more. Patients appreciate that the aligners are clear and removable — so you can continue eating, speaking, and smiling with confidence throughout the treatment.

Before undergoing Invisalign, many people have one question: will aligners stain? The answer is yes. Keep reading to find out why, and how to keep your Invisalign aligners  looking clean and great throughout the treatment.


Your customized Invisalign aligners will be made from a clear plastic that is sturdy enough to gently shift your teeth around — but, like your tooth enamel, the plastic can also absorb the pigments from the foods, beverages, and bacteria it comes into contact with. The most common reason people’s aligners become stained is due to improper oral hygiene. Plaque and bacteria can build up and make the aligners look cloudy or dark.  

There is good news even if an aligner does become stained or discolored, though. You will be instructed to wear each aligner for just 1 to 2 weeks before switching to the next in the series, so you will get a fresh new start soon! As long as the aligners have not been damaged they will still work just fine.


You want to keep your aligner trays looking clear and working properly so all we see is your beautiful smile — and remembering these tips can help you with that.  

  • Remove the aligners before eating or drinking anything other than water. This is very important!
  • Store your aligners in their case any time they are not in your mouth. This will help you avoid accidentally tossing or damaging them.
  • Brush your teeth after eating or drinking anything other than water. Stains or discoloration can still occur even without direct contact, so make sure no food particles are left behind.
  • Using a soft bristled brush, clean your aligners every time you brush your teeth. Do not use toothpaste, though, which is excessively harsh for the Invisalign plastic.
  • Wear your aligners as directed by your dentist. This will ensure that you move through the treatment on time, avoiding any delays so you can advance to the next aligner in the series within one to two weeks.

Meet the Practice

Dr. Canatella and Dr. Neumeyer of Canatella Dental offer comprehensive dental care, including Invisalign. If you are concerned about the appearance of your Invisalign aligners or if you would like more tips on how to care for them, you are invited to contact their office by calling (504) 717-4259 today.