How to Clean Clear Aligners Without Damaging Them
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Clear aligners spend many hours each day in close contact with your teeth. During that time, saliva, plaque and small food particles can collect on the trays, leaving them cloudy, stained or unpleasant-smelling.
Cleaning them regularly is important—but the method matters. Hot water can distort clear plastic, while abrasive toothpaste or hard brushing may leave fine scratches that make aligners look dull.
Here is a simple, aligner-friendly routine that helps keep your trays clean without damaging them.
Quick answer: Rinse your aligners with cool or lukewarm water whenever you remove them. Clean them gently each day with a soft toothbrush and a suitable clear-aligner cleaner, then rinse thoroughly before putting them back in. Never use hot water.
Why Clear Aligners Need Regular Cleaning
Clear aligners can trap plaque, saliva and residue against your teeth. If the trays are not cleaned properly, this build-up can contribute to:
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Cloudiness or discolouration
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Unpleasant tastes and odours
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Plaque and bacterial build-up
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Staining from food or drinks
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Reduced freshness during wear
Cleaning your teeth is just as important as cleaning your aligners. Putting clean trays over teeth that still have food or sugary residue on them can trap that material against the enamel.
The Safest Way to Clean Clear Aligners
1. Wash your hands first
Before removing or handling your aligners, wash and dry your hands. This reduces the transfer of dirt and bacteria to the trays.
2. Rinse the aligners as soon as you remove them
Rinse each tray under cool or lukewarm running water. Doing this promptly helps prevent saliva and debris from drying onto the surface.
Avoid hot or boiling water. Excessive heat may soften or distort the plastic and affect how the aligners fit.
3. Gently clean every surface
Use a separate soft-bristled toothbrush to clean the inside and outside of each tray. Brush gently, paying attention to grooves and areas where residue collects.
Avoid aggressive scrubbing. It can create fine scratches that make clear aligners appear cloudy and give deposits more places to collect.
Some orthodontic providers advise using mild liquid soap, while product instructions can vary. Follow the care guidance supplied by your aligner manufacturer or orthodontist.
4. Use a suitable cleaning tablet when deeper cleaning is needed
For a more thorough clean, place the aligners in a clean container with water and use a cleaning tablet specifically labelled as suitable for clear aligners or retainers.
Always follow the cleaner's instructions for water temperature, water volume and soaking time. Do not leave the trays soaking longer than directed.
Make aligner care simple with Sarvex Denture, Retainer & Aligner Cleaning Tablets. The 36-tablet pack provides a convenient one-month supply for a regular cleaning routine. Use only as directed on the product packaging and check your aligner manufacturer's care instructions.
5. Rinse thoroughly before wearing
After brushing or soaking, rinse the trays thoroughly with cool or lukewarm water. Check that no cleaner or loose residue remains before putting them back in your mouth.
6. Clean your teeth before reinserting the trays
Brush and floss as advised by your dental professional before replacing your aligners, especially after eating. If you cannot brush immediately, rinse your mouth and the trays with water, then clean both properly as soon as possible.
A Simple Daily Aligner-Care Routine
Morning
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Remove and rinse your aligners.
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Gently clean them with a soft toothbrush.
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Brush and floss your teeth.
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Rinse the trays thoroughly and reinsert them.
During the day
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Remove your aligners before eating or drinking anything other than plain water, unless your provider advises otherwise.
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Store them in a clean, ventilated case—never in a tissue or loose in a bag.
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Rinse the trays whenever you remove them.
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Clean your teeth before reinserting them whenever practical.
Evening
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Rinse and gently brush the aligners.
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Use a suitable cleaning tablet according to the product directions when a deeper clean is required.
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Rinse thoroughly before wearing the trays overnight.
What Not to Use on Clear Aligners
Hot water
Hot water may warp or distort the plastic. Use cool or lukewarm water instead.
Abrasive toothpaste
Many toothpastes contain abrasives designed to polish tooth enamel. These can scratch clear plastic and make trays look cloudy. Use the method recommended by your aligner provider.
Bleach or harsh household chemicals
Do not use bleach, household disinfectants or other harsh chemicals. They are not intended for oral appliances and may damage the trays or leave unsafe residue.
Strongly coloured mouthwash
Coloured mouthwash may stain clear aligners. Some mouthwashes also contain ingredients that may not be suitable for soaking trays. Check with your orthodontist before using one.
A dishwasher, microwave or boiling water
High heat can permanently change the aligners' shape. Clear aligners should never be sterilised using kitchen appliances.
How to Prevent Clear Aligners from Becoming Cloudy or Stained
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Remove them before eating.
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Drink only plain water while wearing them unless your orthodontist says otherwise.
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Rinse them promptly after removal.
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Brush your teeth before putting them back in.
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Avoid smoking or vaping while wearing them.
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Keep them in their case when not in use.
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Clean the storage case regularly and allow it to dry.
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Follow a consistent daily cleaning routine.
When Should You Contact Your Orthodontist?
Speak to your orthodontist or aligner provider if:
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An aligner has warped, cracked or split
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A tray no longer fits properly
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Cloudiness or odour remains after correct cleaning
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You see deposits that you cannot remove gently
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The aligner develops rough or sharp edges
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You are unsure whether a cleaning product is compatible
Do not try to reshape a damaged aligner with heat. Your provider can advise whether to continue wearing it, move to another tray or request a replacement.
Frequently Asked Questions
How often should I clean my clear aligners?
Rinse them whenever you remove them and clean them thoroughly every day. Use a suitable deeper-cleaning product at the frequency stated on its packaging and in line with your orthodontist's advice.
Can I brush clear aligners with toothpaste?
It is generally safer to avoid abrasive toothpaste because it may create fine scratches and make the plastic look cloudy. Care instructions differ, so follow the advice provided for your specific aligner system.
Can I soak clear aligners overnight?
Only if the aligner manufacturer and cleaning-product instructions specifically permit it. Many cleaners are designed for a short, timed soak. Longer is not necessarily better.
Can I clean aligners with denture tablets?
Only use a tablet that clearly states it is suitable for clear aligners or retainers. Follow the stated dose and soaking time, and confirm compatibility with your orthodontist if you are unsure.
Why do my aligners smell even after rinsing?
Rinsing alone may not remove all plaque and residue. Clean the trays thoroughly, clean their storage case and maintain good oral hygiene. Persistent odour should be discussed with your dental professional.
What should I do if my aligners turn yellow?
Stop using any product or habit that may be staining them, then clean the trays using an approved method. Do not use bleach or harsh whitening chemicals. Ask your provider for advice if the staining remains.
Keep Your Aligner Routine Simple
The best aligner-care routine is gentle and consistent: rinse promptly, use cool or lukewarm water, clean every day and avoid abrasive products or excessive heat.
For a convenient deeper clean, explore Sarvex Cleaning Tablets for Dentures, Retainers and Aligners and choose the pack size that suits your routine.
This article provides general care information and is not a substitute for advice from your orthodontist, dentist or aligner manufacturer. Always follow the instructions supplied with your aligners and cleaning product.