If you are wondering how to clean Invisalign aligners, 32Co aligners or other clear aligners, the safest routine is simple: rinse them when you remove them, gently clean them every day, keep your teeth clean before reinserting them, and follow any instructions given by your dentist.
This guide is written for Thames Street Dental patients and other clear aligner wearers in Kingston upon Thames. It gives general aligner hygiene advice, not a substitute for the instructions supplied with your Invisalign or 32Co treatment plan.
For most Invisalign, 32Co and clear aligner wearers, a sensible daily routine is:
The NHS advises brushing with fluoride toothpaste twice a day for about 2 minutes and cleaning between the teeth with floss or interdental brushes where appropriate. That matters during aligner treatment because the aligner sits closely over the teeth and can trap plaque, food debris or sugar against the enamel if your teeth are not clean.
Clear aligners are designed to be discreet, but they only stay clear if they are looked after. Saliva, plaque, food particles and drinks can leave a film on the plastic. If aligners are not cleaned well, they may start to look cloudy, smell unpleasant, feel rough or irritate the gums.
Cleaning is also part of protecting your teeth. If you put aligners back over teeth that have food or sugary drink residue on them, the plastic can hold that residue against the tooth surface. Over time, that can increase the risk of staining, bad breath, gum irritation and decay.
Good aligner hygiene is especially important if you have attachments, small spaces where food catches, gum inflammation, a history of decay or a busy routine where aligners are removed and replaced several times a day.
When you wake up, remove your aligners, rinse them and clean them before putting them back in. Brush your teeth carefully first, including around attachments if you have them. A soft brush can then be used to clean the aligners gently. Do not scrub aggressively, because scratched plastic can look cloudy and may collect more deposits.
Remove aligners before eating. After eating, brush your teeth if you can, or at least rinse your mouth with water until you can brush properly. Rinse the aligners before replacing them. If you regularly put aligners back in after food without cleaning your teeth, you may notice odour, staining or a higher risk of plaque build-up.
Night-time brushing is particularly important. Brush for about 2 minutes with fluoride toothpaste, clean between the teeth as advised, and clean the aligners before reinserting them. If your dentist has recommended cleaning crystals or tablets, evening can be a convenient time to use them because you are less likely to rush.
Clear aligners are strong enough to move teeth, but the plastic can still stain, scratch or distort if it is treated harshly. Unless your dentist has given different instructions, avoid:
If an aligner looks warped, cracked, rough or no longer fits properly, do not try to bend it back yourself. Contact your dentist for advice.
Many patients use aligner cleaning crystals or retainer cleaning tablets as part of their routine. Invisalign provides official accessories through its UK shop, and your dentist may recommend a product that suits your appliance. Follow the product instructions carefully, including soaking time and rinsing before reinserting the aligners.
Cleaning products can help with film, odour and cloudiness, but they do not replace brushing your teeth or cleaning the aligner surface. If you are wearing Invisalign in Kingston or 32Co aligners, ask Thames Street Dental which products are appropriate for your specific aligners and retainers.
Most aligner problems happen when people are busy. Keep a small kit in your bag, desk drawer or car so you are not tempted to wrap aligners in tissue or put them back over unclean teeth.
If brushing is not practical straight after a meal, rinse your mouth well with water and brush as soon as you can. Keep aligners in their case while eating rather than on a table, napkin or tray.
Your aligner case can become dirty too. Rinse it daily, wash it regularly with mild soap and water, and let it dry before closing it where practical. Replace the case if it becomes cracked, stained, smelly or difficult to clean.
Do not store aligners in tissue. Many aligners and retainers are accidentally thrown away after being wrapped in a napkin at lunch. The case is part of the treatment kit, not an optional extra.
The basic hygiene principles are similar for Invisalign, 32Co and most clear aligner systems: keep the aligners clean, keep your teeth clean, avoid heat, avoid staining products and follow your dentist’s instructions. The exact cleaning products and wear schedule may vary, so follow the advice given with your own aligners.
32Co describes itself as an orthodontist-supported aligner workflow for dentists, while Invisalign is a separate clear aligner brand with its own resources and accessories. For patients, the practical point is simple: ask the clinician supervising your treatment what they want you to use, especially if you have attachments, refinements, retainers or sensitive gums.
For more background, read our 32Co aligners patient guide or our page on clear aligner treatment.
Ask for advice if your aligners smell even after cleaning, look cloudy, feel rough, stain quickly, rub your gums, no longer fit, or seem to be collecting plaque around attachments. Also ask for help if you are getting bleeding gums, bad breath, tooth sensitivity or white marks on the teeth.
A dental hygiene appointment can help if plaque or staining is building up during aligner treatment. Your hygienist can review your brushing technique, interdental cleaning and cleaning tools so your teeth and gums stay healthy while your aligners move your teeth.
Thames Street Dental can advise on Invisalign, 32Co aligners, retainers and daily aligner hygiene for patients in Kingston upon Thames. If you are still deciding between aligner systems, you can also read about orthodontics in Kingston and retainers in Kingston.
If you have questions about cleaning your aligners, losing a tray, staining, odour or whether your aligner still fits, contact Thames Street Dental for advice.
It is usually better to use a soft toothbrush with water or a product recommended for aligners, because some toothpastes can be abrasive and may scratch clear plastic. Ask your dentist what they recommend for your aligner system.
No. Avoid hot or boiling water because heat can distort clear aligner plastic and affect the fit. Use cool or lukewarm water instead.
Rinse aligners whenever you remove them and clean them gently every day. Brush your teeth and clean between them before reinserting aligners after meals where possible.
Odour usually means plaque, saliva film or food residue is building up on the aligners or teeth. Improve daily cleaning, clean the case, avoid putting aligners over unclean teeth, and ask your dentist or hygienist if the smell persists.
It is usually best to remove aligners for coffee, tea and other coloured drinks. Hot drinks may distort the plastic, and coloured drinks can stain aligners or sit against the teeth.
You can contact Thames Street Dental in Kingston upon Thames for advice about Invisalign, 32Co aligners, clear aligner hygiene, retainers and dental hygiene during treatment.
Need help with aligner cleaning, stains or fit? Contact Thames Street Dental for Invisalign and 32Co aligner advice in Kingston upon Thames.
020 8546 6546
