Freshen Up: Why Dentures Can Smell Bad and How to Fix It

January 4, 2026

Person cleaning their dentures

When you got your full smile with dentures, you might’ve been excited about their many benefits. You’ll get to show off an aesthetic grin once again and have an easier time eating. However, if it’s been a while since you had them, do you notice they are starting to develop a bad smell? You might be wondering why this is happening, so here’s what you need to know and tips for getting rid of this odor.

What’s Making My Dentures Smell Bad?

Your dentures may seem like they are completely solid, but they are actually porous. There are tiny spaces where bacteria, plaque, and food particles can build up. If you don’t properly clean them out, then an unpleasant smell may follow.

While you may think regular brushing is sufficient, it doesn’t properly clear out the prosthetic; you will need to soak it as well. Not only that, but if you experience dry mouth, then it can also increase bacterial growth and worsen existing odors.  

How Can I Keep My Dentures Smelling Fresh?

With that being said, if you do notice a bad smell from your dentures, there are ways that you can combat it. These are some simple tips that you can add to your routine:

  • Brush your prosthetic twice a day with a soft-bristle toothbrush and clear, gentle soap.
  • Soak your dentures every night before bed in a special cleaning solution or water to remove plaque and preserve the shape.
  • Wipe down your mouth to remove buildup. Just be sure to get your tongue, gums, and inner cheeks.
  • Drink plenty of water to prevent dry mouth; that way, you can ensure proper saliva production and wash away bacteria and food debris.

The habits above can help keep your dentures in great shape while you are at home, but it’s important that you visit your dentist as well. By seeing them twice every year, they will be able to do an in-depth cleaning that will remove hardened plaque and tartar.

You can also get your prosthetic relined if the fit has changed. When they don’t sit right, there may be places that can build up bacteria. Instead, you’ll be able to enjoy a comfortable smile once again.

In the end, while dentures with an unpleasant odor can be frustrating to deal with, follow the simple tips above. That way, you feel confident showing off your full smile for years to come.

About the Practice

At Boulder Rock Dental, you benefit from the skilled leadership of Dr. Tyler Flynn and Dr. Thinh Tran. We are dedicated to helping the Palm Coast community restore their missing teeth with reliable tooth replacement options like dentures. By customizing your prosthetic, you can trust that your results look natural and feel comfortable to wear. If your dentures have a bad smell to them, schedule an appointment or call our office at (386) 276-9051.