How to clean dentures: daily care and removing deposits

Put in each morning, taken out at night, with a quick rinse under the tap in between – for many people with full or partial dentures, that is all the care they get. If you want to know how to clean dentures so they last and your mouth stays healthy, you need a little more: the right brush, a mild cleaner and a few simple moves that prevent breakage.

This guide is for denture wearers and for relatives who support older parents in everyday life. It does not replace advice from your dentist – if there is pain, pressure sores or a crack, the denture belongs at the dental practice.

Why it matters how you clean dentures every day

Deposits build up on dentures just as they do on natural teeth. According to the denture care page of the University Centre for Dental Medicine Basel (in German), full and partial dentures need regular, careful cleaning to remove food residue, plaque and bacteria. This prevents gum inflammation, fungal infections and bad breath, and makes the dentures last longer.

The acrylic of a denture is also softer than tooth enamel. Scratches give bacteria and stains more to cling to. So it matters not only that you clean, but also what you clean with.

1. Rinse after every meal

The simplest step is the most important: Geneva University Hospitals (HUG) recommend that you rinse the denture after every meal and brush it once a day. Take it out, rinse it under lukewarm water and rinse your mouth too. That way food residue does not get a chance to set.

Do not use hot water. Heat can warp the acrylic so it no longer fits properly.

2. How to clean dentures: brushing daily over the basin

Once a day, ideally in the evening, give your false teeth a thorough clean:

1. Prepare the basin: fill it halfway with water or lay a folded towel in it. If the prosthesis slips, it has a soft landing. The HUG instructions give the same tip.
2. Choose the right brush: a denture brush has two bristle heads and reaches every surface, including the inside and the clasps of partial dentures. The Basel centre recommends one specifically.
3. Use a mild cleaner: according to the Basel centre, water and a little mild washing-up liquid are enough for daily cleaning. Mild soap works too.
4. Brush every surface: outside, inside, the surface that rests on the palate and around clasps and attachments – until no visible deposits remain.
5. Rinse thoroughly: rinse off all soap before it goes back in your mouth.

3. Remove stubborn deposits with tablets or ultrasound

For deposits the brush cannot shift, the Basel centre mentions special cleaning tablets. Use them exactly as directed on the pack, then brush and rinse thoroughly. Another option is an ultrasonic cleaner; according to the Basel centre, dental practices also offer this kind of cleaning.

Hard tartar on dentures is difficult to remove safely at home. Never scrape it off with a knife, wire brush or abrasive cleaner – it damages the surface. Instead, have it cleaned professionally at your dental check-up.

Clean the cup the denture sits in every day as well – see our guide on cleaning a toothbrush cup.

4. Care for your mouth and store dentures overnight

Care does not stop at the false teeth. According to the Basel centre, the mouth, tongue and palate should be cleaned every day too. The HUG instructions advise brushing the tongue and wiping the inside of the mouth with a damp compress. With a partial denture, brush your natural teeth as usual with a toothbrush and toothpaste.

For the night, the HUG instructions are clear: after the evening clean, store the denture dry in a denture box, then rinse your mouth and the prosthesis in the morning before putting it back in. Whether you should wear it at night or take it out is something to discuss with your dentist. To care for a night guard in a similar way, read how to clean a night guard.

5. Helping a relative day to day

When hands shake, eyesight fades or strength is lacking, denture care becomes a struggle. Relatives can help without taking over:

• Keep the brush, soap and box in a fixed, well-lit spot by the basin.
• A denture brush with a thick handle is easier to hold.
• Wear disposable gloves when helping and calmly explain what you are doing.
• Look out for pressure sores, redness or bad breath and let the dentist know.

Pro Senectute distinguishes between nursing care, provided for example by Spitex home care services, and support with everyday life. According to Pro Senectute, the cantonal organisations offer, among other things, household and cleaning help as well as relief for caring relatives. Our guide to home help for older people gives an overview of the options.

Common mistakes when cleaning dentures

• Cleaning over an empty basin: even a short fall can break off a tooth.
• Using ordinary toothpaste: abrasive particles scratch the acrylic.
• Hot or boiling water: the acrylic can warp.
• Scraping off tartar yourself: this damages the surface – better to have it cleaned at the dentist's.
• Only caring for the false teeth: the tongue, palate and gums need daily care too.

Priority Clean editorial teamOur cleaning team from Alberswil, Canton of Lucerne, shares hands-on experience from move-out, house, office and window cleaning across Central and Northwestern Switzerland.