Sleeping with dentures in: why they usually come out

Unless your dentist says otherwise, a removable denture comes out at night. The reasons, the few exceptions, and how to store it so it keeps its shape.

Reviewed by Yiğit Bal, dentist

Written in Turkey by a dentist. Klinikle is a clinic directory, not a clinic — no practice pays to appear here, and we do not provide treatment. Where a page compares Turkey with treatment at home, read it knowing where it was written.

Last updated: 25 September 2026

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Unless your dentist has given you a specific reason to keep it in, a removable denture comes out at night and spends the hours you are asleep in a closed container of clean water. Falling asleep in it now and then does no lasting harm. Wearing it every night, as a habit, is a different matter.

This applies to complete and partial dentures and to overdentures that clip onto implants. It does not apply to a fixed bridge screwed onto implants, which you cannot remove yourself and which is cleaned in place.

What the night off does for your mouth

All day, the palate and the gum ridges under a denture carry the load of every bite, through a layer of acrylic that stops saliva reaching them. That tissue was never designed to be covered permanently. Taking the denture out at night gives it hours without pressure and lets saliva wash over it, which is how the lining of the mouth normally keeps itself healthy. Leave the denture in around the clock and the space underneath becomes warm, damp, airless and difficult to clean: close to ideal conditions for yeast. The result is denture stomatitis, a red, sometimes sore or burning patch on the palate that matches the outline of the plate exactly. It is common, it is treatable, and the habit it is most consistently linked with is wearing the denture overnight. Many people with it feel little or nothing, which is one reason a dentist checks under the plate at routine visits. If you have a mouth that runs dry, particularly at night, the risk rises further; dry mouth and restorations explains why.

The pneumonia question, in proportion

In 2015, a Japanese study that followed more than five hundred people aged 85 and over reported that those who wore their dentures while sleeping had roughly twice the rate of pneumonia of those who took them out. The proposed explanation is that bacteria living on the denture surface can be breathed into the lungs during sleep, when the reflexes that protect the airway are weaker.

That was an association found in one group of very elderly people, many of them frail. It does not show that dentures cause pneumonia, and it does not mean that a healthy sixty-year-old is in danger from nodding off in front of the television with their teeth in. What it does support is that for someone who is very old, frail, has difficulty swallowing or is being looked after by others, taking the denture out at night and keeping it clean matters more than it might otherwise. If you are arranging care for a parent, it is worth saying so to whoever helps them at bedtime; arranging treatment for a parent looks at the wider picture.

When the dentist tells you to keep it in

The first days with an immediate denture. A denture fitted on the day teeth are extracted usually stays in until the first review, often the next day, because it acts as a dressing over the sockets and limits bleeding and swelling. Taking it out too early can make it hard to get back in once the gum swells. The clinician who did the extractions sets this rule, and it overrides everything above until they change it. If you are flying home within days of an immediate denture being fitted, make sure you know exactly when that period ends and who checks it; temporary teeth: what to expect while you heal covers the healing stage.

A reason specific to you. Occasionally a dentist advises otherwise: where natural teeth in the opposite jaw are damaging a toothless ridge overnight, for instance, or in some people who grind. That is a clinical decision made for one mouth. Ask, do not decide for yourself.

Storing it overnight

Clean it first, over a basin half-filled with water so it will not break if dropped. Use a soft brush and a denture cleaner or plain soap; ordinary toothpaste is abrasive and scratches acrylic.
Put it in a closed container of clean, room-temperature water. Hot water can warp acrylic.
Do not leave it dry on the bedside table. Acrylic that dries out can change shape slightly.
Keep the container out of reach of children and dogs, who find dentures surprisingly interesting.

In the morning, rinse the denture before it goes back in, and brush your palate, ridges and any remaining teeth gently with a soft brush.

Nights away from home

Hotels and flights are where the routine breaks. Dentures wrapped in a tissue on a bedside table get swept up with the rubbish or knocked on to a hard floor, and a hotel glass left on the side is easy to mistake for a drink. A proper lidded case in your hand luggage, with a small brush and your cleaner, solves most of it. If you have a spare or an older denture, travel with it too, particularly on a trip for new dental work; losing your only set a long way from home is more than an inconvenience. On an overnight flight, it is reasonable to keep the denture in if you would otherwise have nowhere clean to put it, and to take it out and clean it as soon as you arrive.

If it only feels right when you sleep in it

People who start taking a denture out at night after years of sleeping in it often find it feels slightly different for the first few mornings. That usually settles within days. If it does not, or if the denture rubs, rocks or makes you sore during the day, the problem is not your night-time routine but the fit, and it needs adjusting or relining. Dentures made abroad raise the obvious question of who does that: dentures in Turkey explains why the adjustments after fitting are the part that decides the result, and implants or dentures sets out when an implant-retained version is worth the extra stages. A denture that is only comfortable when you are unconscious is a denture that needs a dentist.

This page is general information, not medical advice. Outcomes vary between individuals and suitability can only be established after an in-person examination and imaging by a qualified dentist.

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