How to Clean Clear Aligners

During clear aligner treatment, following the recommended wearing schedule is important, but correct daily cleaning is also an essential part of treatment. Inadequate cleaning may contribute to biofilm accumulation, odour, staining and reduced oral hygiene.

When cleaning clear aligners, very hot water, abrasive products and uncontrolled chemical agents that may damage the aligner material should be avoided.

Because aligner materials and manufacturer instructions may differ between systems, the recommendations of the orthodontist managing the treatment should be followed for individualized care.

Why Is Clear Aligner Cleaning Important?

Clear aligners remain in contact with the teeth, saliva and the oral environment for long periods during the day.

Biofilm, salivary deposits and other residues may accumulate on their surfaces.

Regular cleaning helps maintain hygiene and may also help preserve the transparent appearance of the aligners.

Should Clear Aligners Be Cleaned Every Day?

Yes. Clear aligners should be cleaned regularly as part of the daily care routine.

The recommended frequency and suitable cleaning products may vary depending on the aligner system, so the orthodontist's instructions should be followed.

How Should Clear Aligners Be Cleaned?

As a general approach, aligners may be rinsed with water at an appropriate temperature after removal and cleaned using a method suitable for the aligner material.

The aim is to remove deposits from both the inner and outer surfaces.

Before placing the aligners back in the mouth, oral hygiene should also be maintained.

Can You Use Hot Water to Clean Clear Aligners?

Very hot water should be avoided.

High temperatures may affect the shape of some aligner materials and alter how the aligner fits over the teeth.

Aligners should therefore not be soaked in boiling or very hot water.

Can Clear Aligners Be Cleaned with a Toothbrush?

If mechanical cleaning is used, the brush and technique should be suitable for the aligner material.

Hard or abrasive cleaning may scratch the surface and make the aligner appear more opaque.

Using care methods recommended by the orthodontist is preferable.

Can Toothpaste Be Used to Clean Clear Aligners?

Some toothpastes contain abrasive particles.

These products may cause microscopic scratches or make the aligner surface appear cloudy.

Products that have not been confirmed as suitable for the aligner material should therefore not automatically be used for routine cleaning.

Can Clear Aligner Cleaning Tablets Be Used?

Some cleaning products are specifically designed for clear aligners or orthodontic appliances.

However, it should not be assumed that every product is compatible with every aligner material.

Manufacturer instructions, soaking time and the orthodontist's recommendations should be followed.

Can Clear Aligners Be Washed with Soap?

The ingredients in the product and its compatibility with the aligner material are important.

Strongly scented, coloured or residue-forming products may not be appropriate.

Individual cleaning recommendations should be followed when there is uncertainty.

Can Clear Aligners Be Put in a Dishwasher?

No. Cleaning clear aligners in a dishwasher is not appropriate.

High temperatures and cleaning chemicals may affect both the material and the shape of the aligner.

Can Clear Aligners Be Boiled?

No.

Placing an aligner in boiling or very hot water may cause deformation.

A change in shape can affect the fit of the aligner and its intended function during treatment.

Why Do Clear Aligners Turn Yellow?

Clear aligners may become discoloured over time.

Highly pigmented drinks, food or beverages consumed while wearing the aligners, inadequate cleaning and surface deposits may contribute to staining.

Following the recommended removal, cleaning and storage routine can help preserve their appearance.

Can Coffee Stain Clear Aligners?

Coffee contains strong pigments and may contribute to staining of clear aligners.

Hot beverages may also be unsuitable for the aligner material.

The orthodontist's instructions should be followed regarding which beverages may be consumed while wearing the aligners.

Can Tea Stain Clear Aligners?

Tea also contains pigments that may contribute to colour changes on the aligner surface.

Following the recommended instructions regarding coloured drinks can help maintain the appearance of the aligners.

Can You Eat While Wearing Clear Aligners?

In many clear aligner treatment protocols, aligners are removed during meals.

Food trapped between the aligner and the teeth may negatively affect both oral hygiene and aligner cleanliness.

The individual wearing protocol should be followed according to the orthodontist's recommendations.

Should Aligners Be Put Back In Immediately After Eating?

Before replacing the aligners after a meal, oral hygiene should ideally be maintained.

Food debris remaining on the teeth may otherwise stay trapped beneath the aligner for an extended period.

When possible, the teeth should be cleaned before the aligners are reinserted.

Should You Brush Your Teeth Before Putting Clear Aligners Back In?

Keeping the teeth and interdental areas clean is an important part of clear aligner treatment.

Even a clean aligner may trap food debris if it is placed over unclean teeth.

Why Do Clear Aligners Develop an Odour?

Inadequate aligner cleaning, biofilm accumulation on the aligner or teeth, and improper storage may contribute to unpleasant odour.

Regular aligner cleaning and good oral hygiene can help reduce this problem.

What Should You Do If Your Clear Aligners Smell?

The daily cleaning routine and oral hygiene should first be reviewed.

If the odour continues despite regular cleaning, or if other oral symptoms are present, clinical assessment may be appropriate.

What Is the White Film on a Clear Aligner?

Mineral deposits from saliva, biofilm or other surface residues may form on an aligner.

It may not be possible to identify the cause accurately from appearance alone.

If deposits cannot be removed with appropriate routine cleaning, the aligner can be shown to the orthodontist.

What Happens If a Clear Aligner Gets Scratched?

Scratches may reduce transparency and make the aligner surface appear more cloudy.

Abrasive cleaning products and aggressive mechanical cleaning should therefore be avoided.

How Should Clear Aligners Be Stored When Not in Use?

When outside the mouth, aligners should generally be stored in an appropriate aligner case.

Wrapping an aligner in a tissue may increase the risk of accidentally throwing it away, while leaving it exposed may lead to contamination or damage.

The aligner case should also be cleaned regularly.

Should Clear Aligners Be Left Exposed?

Leaving aligners on open surfaces for extended periods is not ideal from a hygiene perspective.

It may also increase the risk of loss or physical damage.

Should the Aligner Case Be Cleaned?

Yes. Placing a clean aligner into a dirty case can reduce the effectiveness of the overall hygiene routine.

The case should also be kept clean and dry.

What Should You Do If a Clear Aligner Falls on the Floor?

An aligner that has fallen onto the floor should not be placed directly back into the mouth.

It should be cleaned using a method appropriate for the aligner material before reuse.

If the aligner appears damaged, the orthodontist should be contacted.

Can a Deformed Clear Aligner Still Be Used?

If the shape of the aligner has changed noticeably, it may no longer fit the teeth as intended.

Rather than forcing a deformed aligner into place, the orthodontist managing the treatment should be contacted.

What Should You Do If a Clear Aligner Cracks?

Whether a cracked or broken aligner can continue to be used depends on the location and extent of the damage.

Patients should not attempt to repair the aligner themselves.

The orthodontist can evaluate the current treatment stage and determine how treatment should continue.

Does Cleaning the Aligners Replace Oral Hygiene?

No.

Keeping the aligners clean and keeping the teeth and gums clean are two separate aspects of care.

Clear aligner treatment requires regular hygiene of both the appliance and the mouth.

How Should You Clean Around Attachments?

Dental plaque may also accumulate around attachments used during clear aligner treatment.

These areas should therefore receive careful attention during toothbrushing.

Appropriate cleaning techniques can be demonstrated during clinical appointments.

Should You Floss While Wearing Clear Aligners?

Cleaning between the teeth remains an important part of oral hygiene during clear aligner treatment.

Appropriate interdental cleaning methods may be used according to the condition of the teeth and gums.

Can Mouthwash Be Used to Clean Clear Aligners?

Products designed for oral rinsing and products designed for appliance cleaning may serve different purposes.

A product being safe for use in the mouth does not automatically mean that it is suitable for clear aligner material.

Compatibility should therefore be confirmed before soaking aligners in any solution.

Should Bleach or Strong Chemicals Be Used to Clean Clear Aligners?

No. Uncontrolled use of strong household chemicals is not appropriate for clear aligner cleaning.

Only methods and products known to be compatible with the aligner material should be used.

Can Clear Aligner Cleaning Affect Treatment?

Cleaning alone does not determine orthodontic tooth movement, but good oral hygiene and correct appliance care are important parts of maintaining a healthy treatment process.

Aligners that are heavily contaminated, deformed or no longer fitting correctly should be clinically evaluated.

Why Is Proper Aligner Fit Important?

Active clear aligners need to fit appropriately over the teeth in order to support the planned tooth movements.

Deforming an aligner during cleaning may affect this fit.

If the aligner no longer fits as it did previously, the orthodontist should be contacted.

Should Old Aligners Be Thrown Away When Starting a New One?

Whether previous aligners should be kept depends on the treatment protocol and the orthodontist's instructions.

Patients should not discard aligners or change the sequence independently without guidance.

A Simple Daily Clear Aligner Cleaning Routine

A basic daily care routine may include the following principles:

• Handling aligners with clean hands
• Cleaning them regularly using an appropriate method
• Avoiding very hot water
• Maintaining oral hygiene before reinserting the aligners
• Storing aligners in an appropriate case when they are outside the mouth
• Keeping the aligner case clean
• Contacting the orthodontist if staining, deformation or fit problems occur

Frequently Asked Questions About Clear Aligner Cleaning

Should clear aligners be cleaned every day?

Yes. Clear aligners should receive regular daily care. The products and cleaning methods used should be compatible with the aligner system.

Can clear aligners be washed with hot water?

Very hot or boiling water should be avoided because high temperatures may affect the shape of the aligner material.

Can toothpaste be used to clean clear aligners?

Some toothpastes may be abrasive and can make the aligner surface appear cloudy. The cleaning product should be appropriate for the aligner material.

Why do clear aligners turn yellow?

Highly pigmented drinks, insufficient cleaning and surface deposits may contribute to discolouration.

Why do clear aligners smell?

Biofilm accumulation, inadequate appliance cleaning and oral hygiene problems may contribute to unpleasant odour.

Should clear aligners be removed while eating?

In many treatment protocols, aligners are removed during meals. Individual instructions should be followed according to the orthodontist's recommendations.

What should I do if my aligner no longer fits properly?

Rather than forcing the aligner into place, the orthodontist should be contacted. A fit problem may be related to aligner deformation or differences between the planned and actual tooth movement.

Content Last Updated: 2 September 2026

Content Reviewed By: Orthodontist Çağrı Şibal

This content has been prepared for general informational purposes and does not replace a clinical diagnosis or personalized treatment recommendation. Clear aligner cleaning methods, suitable products and daily care recommendations may vary according to the aligner system and individual treatment plan; the instructions of the orthodontist managing the treatment should be followed.