Can Dentures Make You Sick?
Yes, dentures can make you sick if they are not cleaned properly or if they don’t fit the way they should. When dentures trap bacteria, irritate soft tissues, or make chewing harder, they can affect more than just your mouth. They may also impact digestion, increase infection risks, and even influence overall health.
For many people, dentures restore confidence and function, but they do need daily care. Knowing how problems develop, and the simple steps that prevent them, can keep both your smile and your body healthy.
Common Health Problems Linked to Dentures
Dentures create a unique environment in the mouth. If they are cared for well, they work fine. But if they are neglected, they can trap food, harbor bacteria, and irritate soft tissues. Over time, this may lead to:
Fungal Infections (denture stomatitis)
A yeast called Candida can grow on dentures that aren’t cleaned daily. This can cause redness, swelling, and soreness on the roof of your mouth or gums. People who sleep in dentures are much more likely to get this infection.
Mouth Sores (angular cheilitis)
Worn or poorly fitting dentures can make the corners of your mouth fold over, keeping them moist. This can lead to painful cracks or sores at the corners of the mouth caused by bacteria or yeast.
Aspiration pneumonia
Sleeping in dentures may let bacteria travel into the lungs during sleep. Older adults who keep dentures in overnight have a higher risk for pneumonia.
Digestive problems
Nearly two-thirds of denture wearers report issues like bloating, cramps, or stomach pain, often because chewing is less effective.
Malnutrition
Trouble chewing can lead to avoiding harder foods like meats, vegetables, or nuts. Studies show denture wearers eat fewer vitamins and proteins and may be more likely to have deficiencies. Over time, this can raise risks for anemia, weak bones, or even heart disease.
Obesity
Some people switch to softer, highly processed foods that are easy to chew but high in sugar or starch. This can lead to weight gain and raise the risk for diabetes, heart disease, or sleep apnea.
Gum irritation and inflammation
Loose or unclean dentures may trap food and rub against the gums, creating sore spots or ulcers. These can act as openings for infection. One simple way to stop this is to use denture adhesive.
Persistent bad breath
Old or dirty dentures can trap bacteria and food, which cause odors. Over time, dentures become more porous, making them harder to clean. Most dentures need to be replaced about every 5 years.
A recent survey found that nearly 6 out of 10 denture wearers reported at least one oral health problem linked to poor cleaning habits. The good news is that daily cleaning and regular dental checkups greatly reduce these risks.
How Ill-Fitting Dentures Can Affect Your Health
Dentures are meant to fit snugly against your gums, giving you comfort and stability when chewing and speaking. Over time, natural changes in the jawbone and gum tissue can loosen the fit. When dentures don’t fit right, they can harm both your mouth and your overall health.
- Gum and jaw soreness: Loose dentures shift around with each bite or word, rubbing the gums and causing sore spots. This can make it painful to eat or talk, and may even affect what foods you choose.
- Mouth ulcers: Constant rubbing or pinching can cause open sores in the mouth. These ulcers can get infected and may take longer to heal, especially in people with diabetes, older adults, or anyone with weaker immunity.
- Chewing problems and poor nutrition: When eating is uncomfortable, many people start avoiding certain foods. This can lower intake of fiber, protein, and vitamins. In the short term, it can cause digestive upset. In the long run, it can weaken the immune system and overall health.
- Aspiration risks: Sleeping with dentures raises the risk of denture stomatitis (fungal infection) and also increases the chance of bacteria reaching the lungs, which can cause pneumonia. Rarely, dentures have even been accidentally inhaled or swallowed during sleep.
In many cases, ill-fitting dentures can be fixed with a reline or adjustment. Because gums and bone naturally shrink with age, having dentures checked at least once a year helps prevent painful changes. If your dentures are more than 5 years old, it may be time for a replacement to protect both comfort and health.
Poor Denture Cleaning Habits and Bacterial Growth
Like natural teeth, dentures need daily cleaning to prevent harmful buildup. But unlike teeth, dentures are made of acrylic, which is more porous. This means they can soak up bacteria, fungi, food particles, and plaque more easily. Without proper care, this buildup can lead to infections, bad breath, and staining.
- Daily brushing is essential: Use a soft-bristled brush designed for dentures. It removes food debris and plaque without scratching, since scratches make it easier for bacteria to hide.
- Soaking overnight helps kill bacteria: Place dentures in water or a cleaning solution at night. This lowers bacteria levels and keeps dentures from drying out or cracking.
- Overnight wear increases risk: Sleeping in dentures creates a warm, moist space for germs to thrive. Studies show people who keep dentures in at night have much higher rates of denture infections and even pneumonia.
- Old dentures trap more bacteria: Over time, tiny scratches and wear make dentures harder to clean. Most dentures should be replaced about every 5 years to keep them hygienic and comfortable.
- Don’t forget your mouth: It’s just as important to clean your gums, tongue, and the roof of your mouth after taking dentures out. A soft brush or damp cloth works well, followed by a rinse with mouthwash. This lowers the number of bacteria in your mouth and helps keep tissues healthy.
Neglecting daily care can lead to more bacteria on dentures than even on natural teeth. A simple routine of brushing, soaking, and regular dental checkups keeps dentures clean and lowers your risk of illness.
When to See a Dentist About Denture-Related Symptoms
Early attention to denture problems can stop small irritations from turning into bigger health issues. Many denture wearers try to manage discomfort at home, but some symptoms need professional care.
| Symptom | Why It Matters | Recommended Action |
|---|---|---|
| Persistent mouth pain or sores | May signal poor fit, infection, gum damage, or in rare cases, oral cancer. | Schedule a denture fit check and oral exam. |
| Bad breath that doesn’t go away | Can be caused by trapped bacteria or fungal growth. | Request a professional cleaning and hygiene review. |
| Loose or slipping dentures | Can cause gum irritation, mouth sores, and trouble chewing. | Ask about a reline, adjustment, or replacement. |
| Swelling or redness in gums | May be a sign of infection, irritation, or allergic reaction. | Have the dentist check your dentures and oral tissues. |
| Difficulty chewing or speaking | Could result from poor fit or damage to the denture. | Arrange for a bite and fit evaluation. |
Dentists recommend at least one annual denture assessment to make sure the appliance is clean, well-fitted, and not contributing to health problems. For people with health conditions that affect immunity, more frequent checks may be helpful.
Preventing Denture-Related Illness
Healthy dentures protect more than your smile – they protect your overall health. A mix of daily care and regular dental visits lowers the risk of infections, irritation, and other problems.
- Brush every day: Morning and night with a denture brush or soft toothbrush and non-abrasive cleaner. Avoid regular toothpaste, which can scratch dentures.
- Soak overnight: In water or a denture solution to keep dentures moist and reduce bacteria.
- Rinse after meals: A quick rinse under running water clears food particles that can cause odor or plaque.
- Take them out at night: Resting your gums overnight helps prevent fungal growth and lets tissues recover.
- Visit the dentist regularly: Yearly checkups for cleaning and fit adjustments, or more often if you have health conditions that affect immunity.
- Replace when needed: Even with good care, dentures wear down over time. Most need replacement about every 5 years to stay clean and functional.
Studies show people who combine at-home care with professional maintenance can cut their risk of denture-related infections by up to 40%.
FAQs About Denture-Related Health Risks
Can dirty dentures cause infections?
Yes. Unclean dentures can harbor bacteria and fungi that may lead to gum infections, bad breath, and denture stomatitis.
How often should I clean my dentures?
Brush daily and soak overnight in water or a denture cleaning solution.
Is it bad to sleep with dentures in?
Yes. Sleeping with dentures increases the risk of fungal infections, gum irritation, and even pneumonia.
Can dentures affect my digestion?
Yes. Poorly fitted dentures make chewing less effective, which can cause digestive discomfort.
When should dentures be replaced?
On average, every 5 years. Replacement ensures a proper fit, comfort, and hygiene.
What are the signs my dentures need adjustment?
Pain, looseness, chewing trouble, or visible damage all mean it’s time for an adjustment or replacement.
Can poor denture care affect overall health?
Yes. Bacteria from unclean dentures can enter the bloodstream if gums are irritated, raising the risk of health issues beyond the mouth.
Are there safe cleaning products for dentures?
Yes. Always use cleaners made for dentures. Regular toothpaste can scratch and damage them.
Want to Keep Your Dentures Safe, Comfortable, and Long-Lasting?
Explore more guides on Dentures101 for expert tips on cleaning, storage, fit checks, and troubleshooting common denture problems. Your healthiest smile starts with the right knowledge, and we’re here to help you every step of the way.