Cleaning Invisalign® aligners. -

The Invisalign® cleaning system (cleaning crystals). | Commercial alternatives- SonicBrite®, Retainer Brite®, denture cleaners. | Homemade cleaners.

A picture of an Invisalign® tooth aligner.

An Invisalign® aligner.

Your aligners require cleaning just like your own teeth do.

Once you've begun wearing your Invisalign® aligners, you'll no doubt notice that the same debris (dental plaque and tartar) that tends to accumulate on your own teeth has started to build up on them too.

This debris may show, pick up staining, or be the source of odor.

Fortunately, armed with just a little bit of knowledge and effort, it should be easy enough for you to keep your aligners fresh and clean. Here are some of the options that you have.

The information found on this page is also applicable to the similar aligner systems ClearCorrect® and Simpli 5®.

Using the Invisalign® Cleaning System (crystals).

Align Technology, Inc. (the maker of Invisalign®) sells a proprietary product they call the "Invisalign® Cleaning System."

Illustration of cleaning Invisalign® tooth aligners.

One way to clean Invisalign® aligners is by placing them in a soak.

Prepackaged cleaning crystals.

This product contains individual packets of "crystals" which, when added to water, make a soaking solution that Align Technology says will remove dental plaque from aligners.

Is it necessary to use the Invisalign® Cleaning System?

The main drawback of using Invisalign®'s product is that it's a bit pricey. Using these packets costs on the order of a dollar a day. Because of that, some people wonder how important it is for them to use this specific cleanser.

Potential damage from other cleaners is evidently only a cosmetic one.

Per information from Invisalign®, the answer to this question is as follows.

  • They suggests that the use of other cleaners can cause surface damage to aligners that can cause them to become dull or cloudy (and therefore more obvious to others when worn).

Note that this stated damage is only cosmetic in nature and not something that affects or degrades the function of the aligners.

Are there alternatives to using the Invisalign® Cleaning System?

Despite Align Technology, Inc.'s claims, we've seen a number of posts from Invisalign® patients describing alternative methods that they use to clean their aligners (both commercial preparations and homemade soaks).

All of these methods are similar in the fact that they have a lower cost (often substantially so). And the people using them have not noticed significant changes in the appearance of their aligners.

Consider using a vibratory bath.

In all cases, the effectiveness of any cleaning method can be enhanced if it is used in conjunction with a vibrating bath (either a sonic, or better yet, ultrasonic cleaning unit). The agitation that these devices create can help to dislodge micro-particles that often remain adherent to aligners even after a thorough brushing.

Cleaners are for external use only.

Also, remember this. Soaking solutions are intended for use with your aligners only. Any residual liquid that remains on them after cleaning should be thoroughly rinsed off before they are placed back into your mouth.

Commercial products - Cleansers and soaks.

1) SonicBrite / Retainer Brite

SonicBrite and Retainer Brite are two commercial products whose instructions specifically state that they are suitable for use with removable braces (like Invisalign®).

These products can help to remove stain and kill bacteria and other microorganisms. When used, one packet of crystals is mixed with water to create a soaking solution.

For those who like the idea of buying a commercially prepared product, these cleansers offer a more cost-effective solution than the Invisalign® Cleaning System.

Sonic cleaning units.

Both SonicBrite and Retainer Brite sell battery-powered vibrating baths whose use can enhance the cleansing action of their product (these same baths could be used with any other type of soaking solution to enhance its cleaning effect too).

2) Effervescent denture cleansing products (Efferdent, Polident, Kleenite and generic equivalents).

Commercially prepared effervescent denture cleaning products (tablets, powders, crystals and foams) can be used to clean invisible braces.

Illustration of cleaning removable orthodontic aligners in a commercial soaking solution.

Cleaning Invisalign® aligners in an effervescent soak.

  • These products are usually formulated with some type of oxidizing compound that is capable of killing microorganisms and removing stains.
  • They also contain an effervescing (bubbling) agent that helps to dissolve the product and provide some minor degree of cleansing action.
  • Other ingredients typically include a tartar removing agent (chelating agent) and various detergents, enzymes, dyes, flavorings and fragrances.

Generic versions of this type of product are readily available, which makes this cleaning approach a very cost-effective one.


Homemade cleaning solutions and soaks.

Some people like the idea of using a homemade soak to clean their Invisalign® aligners.

Besides the convenience of already having the ingredients needed to make these solutions on hand, they also happen to be incredibly inexpensive.

Different cleaners for different problems.

Each of these homemade cleaners has its own particular strengths. (We've made mention of them below.) And because of this, one may stand out to you as best because it's good at addressing the type of problem that you tend to have.

For others, you might consider using a routine that involves rotating through the use of each of them. And, just as with commercially prepared products, the use of a vibratory bath with these homemade solutions will enhance their cleaning action too.

a) Diluted hydrogen peroxide solution.

Dilute hydrogen peroxide 50:50 with water and use it as a soaking solution.

Hydrogen peroxide has antibacterial / antimicrobial properties. And just like it's used to whiten teeth, its oxidizing properties should help with aligner staining. This type of cleanser would not be expected to be effective at removing tartar.

b) Diluted bleach solution (sodium hypochlorite).

Dilute household bleach (Clorox) at a ratio of one part bleach to ten parts tap water and use it as a soaking solution for 10 minutes.

Research has shown that this mixture is effective in killing microorganisms harbored on dental appliances. Bleach-based solutions are also good at removing many types of aligner staining.

Diluted bleach solution on its own will not be effective at removing tartar. To remedy this, add to it one teaspoon of Calgon water softener (Calgon the calcium-chelating agent, not Calgon the soap or bath oil) per glassful.

c) Diluted vinegar solution (acetic acid).

Dilute ordinary white vinegar 50:50 with tap water and use it as a solution for short soaks. The mildly acidic nature of the vinegar makes this soak especially effective at removing accumulated tartar.

Mouthwash makes a poor choice for cleaning removable orthodontic aligners.

Graphic stating that mouthwash is not the best choice for cleaning Invisalign aligners.

Why mouthwash isn't the best choice for cleaning your aligners.

You've probably noticed that several mouthwash brands make antibacterial claims in their advertising. This, plus the fact that these products usually have a pleasant flavor, makes it easy to come to the (mistaken) conclusion that a mouthwash might be a good choice for cleaning your Invisalign® aligners.

In reality, at least from information derived from denture cleaning studies, mouthwashes have not been shown to be nearly as effective as you would expect.

Compounding matters, some Invisalign® patients have reported that colored mouthwashes (especially red) have caused their aligners to discolor (or have tinted the debris that has accumulated on them).

For both of these reasons, the other types of cleaning solutions listed on this page can probably be considered to be a more suitable choice.

Cleaning removable braces with a toothbrush.

One way to clean debris and dental plaque from orthodontic aligners is with a toothbrush. Any soft-bristled toothbrush should be suitable for this task. Since some portions of aligners are quite narrow, a small child's toothbrush is probably the best choice. As an alternative, some people use Q-tips.

Don't use toothpaste, use a mild detergent.

Toothpaste isn't the best choice for cleaning removable braces. Many types of toothpaste, especially "whitening" toothpaste, contain abrasives that can, over time, create enough micro-scratches on an aligner's surface that (collectively) they start to show.

Instead just use plain water, or better yet, water and a few drops of mild dishwashing detergent.

Set aside a toothbrush just for cleaning your aligners.

Even the small amount of toothpaste that remains on a brush after being used can, over time, begin to dull an aligner's surface. For this reason, it's best to dedicate a second, new brush for this use.

Cleaning your Invisalign® aligners isn't rocket science.

The temporary nature of each set of aligners makes the act of evaluating the suitability of any cleaning method quite easy to do, without any risk of serious consequences.

  • Once you have an old set of aligners, experiment with using the new cleaning method on them before you use it with your current set.
  • If you find that you have been using a method that does seem to make a visible change in the appearance of your aligners, then simply don't use it any more and don't use it with any future sets either.

Always avoid a heated environment when you clean your orthodontic aligners.

It's important to keep in mind that whatever method you choose to clean your removable braces it must never involve the use of heat or hot liquids.

Invisalign® and related products are vacuum-molded appliances that are made by softening a sheet of plastic with heat and then suctioning it down over a model. The use of a heated environment when cleaning them might cause them to warp or distort.


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