How to Clean Invisalign Retainers Safely and Effectively

Cleaning Invisalign retainers removes saliva, plaque, and food residue that can leave them cloudy or smelly. It also helps keep the trays comfortable and clear. Before you begin, wash your hands and take the retainers out of your mouth. Follow any product-specific instructions from your orthodontist or dentist, since retainers and cleaning products can differ.

What You’ll Need

A clean, soft-bristled toothbrush reserved for cleaning the retainers
Cool or lukewarm water
A small amount of clear, mild, unscented liquid soap, if recommended for your appliance
Optionally, a cleaner specifically labeled for clear aligners or retainers
A clean container for soaking, if the cleaner requires one

Keep the retainer case clean and dry between uses. Avoid using the same brush that you use with gritty toothpaste, which may leave abrasive residue on the plastic.

Step-by-Step

Wash your hands. Use soap and water before handling the trays. This reduces the chance of transferring food, oils, or dirt to a retainer that sits against your teeth.
Remove and rinse the retainers. Take them out carefully and rinse both sides under cool or lukewarm running water. Rinsing soon after removal helps wash away saliva and loose debris before it dries.
Brush gently. Hold one retainer securely and use a soft toothbrush to clean its inside and outside surfaces. Apply light pressure and move over grooves and edges without bending or twisting the plastic. If using soap, use only a small amount of clear, mild liquid soap; avoid heavily scented or colored products that may leave residue.
Rinse away all cleaner. Rinse the tray thoroughly with cool or lukewarm water. Check that no slippery film, suds, or visible debris remains. Cleaner left on the appliance can taste unpleasant and may irritate your mouth.
Soak when needed. For a deeper clean, use a product specifically labeled for clear aligners or retainers and follow its directions for dilution and soaking time. Use a clean container and fresh solution. Do not assume that a product intended for dentures is suitable for Invisalign; check its label or ask your dental professional.
Rinse again after soaking. Give each tray a thorough rinse before putting it back in your mouth. Discard the solution as directed by the product label; do not reuse it unless the label explicitly says to.
Check and store properly. Look for cracks, rough edges, cloudiness that does not rinse away, or a change in fit. If you are not wearing the retainers, place them in their clean case rather than wrapping them in a napkin or leaving them loose on a counter.

Clean the retainers regularly, ideally whenever you brush your teeth, and rinse them whenever you remove them. Your orthodontist may recommend a different routine for your particular appliance. Cleaning is not a substitute for brushing and flossing your teeth; put trays back only after your mouth and the retainers are clean.

Common Mistakes

Using hot or boiling water: Heat can distort the plastic and affect the fit. Choose cool or lukewarm water, including for soaking and rinsing.
Scrubbing with toothpaste: Many toothpastes contain abrasives that can scratch or dull clear plastic. Use a soft brush and a suitable mild cleaner instead.
Using harsh household chemicals: Bleach, alcohol, disinfectants, and strong cleaners can damage the appliance or leave unsafe residue. Use only products intended for oral appliances, following their labels.
Leaving the trays to soak indefinitely: Longer is not necessarily better; soaking beyond the product directions may damage the material. Follow the stated time.
Skipping the final rinse: Residual soap or cleaning solution can cause a bad taste. Rinse thoroughly before reinserting.
Wrapping trays in tissue: They can be mistaken for trash or lost. Use the case, and keep it out of reach of pets and away from heat.

Tips

Make cleaning part of your regular tooth-brushing routine so buildup is less likely to harden.
Rinse the trays each time you remove them, even if you cannot do a full clean right away.
Keep a dedicated soft toothbrush and the retainer case together, and clean the case regularly with mild soap and water. Let it dry before storing it.
Use a cleaner only if its label specifically says it is suitable for clear aligners or retainers. If unsure, ask your orthodontist or dentist before trying it.
Do not eat or drink anything except plain water while wearing aligners, unless your dental professional has told you otherwise. Food and colored or sugary drinks can soil trays and collect against teeth.
When traveling, carry the case and a small cleaning brush. Avoid leaving retainers in a hot car or near a heater.

Troubleshooting

The retainer still smells or looks cloudy: Rinse and gently brush it again, paying attention to grooves and the edges. If needed, use a retainer-specific cleaner as directed. Persistent odor or cloudiness may be buildup or a material change; ask your dental professional rather than escalating to bleach or abrasive scrubbing.

There is a white or hard deposit: Do not scrape it with a pin, knife, or other sharp object. Try the recommended cleaning method, and contact your orthodontist if the deposit remains. Scraping can scratch the surface or create damage.

The tray is warped, cracked, or suddenly does not fit: Stop trying to force it into place. Heat or physical damage may change the fit. Contact your orthodontist or dentist for instructions about whether to wear it and how to replace it.

You used the wrong cleaner: Rinse the retainer thoroughly with cool or lukewarm water. If you used bleach, a strong chemical, or a product not intended for oral appliances, do not put it back in your mouth until you have contacted your dental professional for guidance.

You cannot find the retainer: Check its case and the places where you usually clean or remove it. If it is lost, contact your orthodontist promptly for advice; do not substitute a damaged or ill-fitting tray.

Frequently Asked Questions

How often should I clean Invisalign retainers?

Clean them regularly, ideally whenever you brush your teeth, and rinse them whenever you take them out. Follow your orthodontist’s instructions if they specify a different schedule.

Can I use toothpaste on my retainers?

It is generally better to avoid toothpaste because abrasive ingredients can scratch or dull clear plastic. Use a soft-bristled brush with a suitable mild cleaner or a product made for retainers.

Can I soak Invisalign retainers in mouthwash?

Do not use mouthwash as a soaking solution unless your orthodontist specifically approves it. Some mouthwashes contain dyes or ingredients that may discolor or affect the plastic.

Is it safe to clean retainers with vinegar or baking soda?

Do not assume household remedies are safe for your particular appliance. They may leave residue or abrade the surface; ask your dental professional and use a cleaner labeled for clear retainers.

Can I put Invisalign retainers in a dishwasher or use a UV sanitizer?

A dishwasher exposes plastic to heat, and a sanitizer may not be suitable for every retainer. Use neither unless the appliance manufacturer or your dental professional explicitly confirms it is appropriate.

What should I do if my retainer tastes like soap after cleaning?

Remove it and rinse it thoroughly under cool or lukewarm water. Use less cleaner next time, and contact your dental professional if an unpleasant taste persists or you have irritation.

Further reading: Invisalign. Details can change, so check the official page for anything that matters to you. Spotted a mistake? Tell us. How we write an answer.