What’s Making Your Dentures Develop a Bad Odor?

October 20, 2026

Woman looking at her denture

A reliable tooth replacement that millions of people have is dentures. They are a tried-and-true solution to give you back a full smile after tooth loss. If you’ve had a pair for a while, you likely have been enjoying the restored bite and renewed confidence they offer. However, over time, they may develop a bad smell. Here’s why this happens and what you can do about it.

What Causes Dentures to Smell Bad?

When you hold your dentures or feel them with your tongue, you might imagine they are a completely solid piece. But they actually have tiny pores throughout the surface. This characteristic comes from the acrylic resin base, but these spaces can trap bacteria. As they build up, they can release a foul odor. Brushing typically isn’t enough to clean these tight areas, as the bristles can’t effectively scrub them.

How Can You Freshen Your Dentures?

Since regular scrubbing with a soft-bristled toothbrush and clear, gentle soap can’t clear the pores in your dentures, you might wonder what you can do. Thankfully, one of the best things you can do is to soak them during the night. By placing your restoration in a glass of water or a prosthetic-safe solution, you can allow the liquid to seep into it and flush anything out. That way, you don’t have to worry about them causing problems.

That said, don’t forget to brush each side of your dentures. This helps prevent plaque from accumulating on them. Don’t forget to wipe your gums, tongue, and inner cheeks. Any film on them can transfer, increasing your risk of oral health issues down the line.

One of the best things you can do is to visit your dentist! With routine checkups and cleanings, they can ensure your full smile stays in great shape and spot red flags before they become a big headache. Not only that, but they can polish your tooth replacement. This can make them look as good as new.

So, while bad-smelling dentures can be frustrating, there are plenty of stuff you can do. That way, you get back a confident grin you feel your best in.

About the Author

Dr. Kyrslyne Thomas earned her dental degree from the Medical College of Georgia. She is dedicated to helping patients in Pearland restore their missing teeth by offering reliable solutions like dentures. Dr. Thomas has over 10 years of experience, which she uses to give you results that are comfortable and lifelike. If you have any questions, schedule an appointment or call her office at 832-520-2949.