Are Ill-Fitting Dentures Life Threatening?
April 10, 2025

Dentures are a common tooth replacement option, as they are life-changing for those who are missing several, most of, or all of their teeth. However, after a couple of years, the mouth changes, so your dentures may not fit how they used to. They may seem like just a comfortable inconvenience, but it can actually be a very serious issue. Here’s what you should know!
What Is the Connection Between Ill-Fitting Dentures and Oral Cancer?
Dentures aren’t harmful on their own. However, if they aren’t fitting as they should, they can cause significant issues. This is because they can trap harmful substances, like alcohol, tobacco, and food debris, between the dentures and the gums, resulting in inflammation. Chronic inflammation can result in cell damage. These cells will be repaired by your immune system, but if they grow too fast for your body, they can turn into cancer cells. The longer that you have this type of inflammation and irritation, the higher the risk of developing oral cancer. Ultimately, if your denture isn’t fitting comfortably, you should contact your dentist right away to have it addressed.
5 Signs That Your Dentures Are Ill-Fitting
Here are some of the common signs that dentures aren’t fitting as well as they should.
- Pressure Sores: Sores can result in places where there is too much pressure on the gums. Dentures are meant to distribute the pressure evenly across your gums, so if you are developing these sores, you likely need an adjustment.
- Difficulty Chewing: It takes some time to adjust to chewing after you first get your dentures. If you notice that it is difficult to chew later, it could be a sign that you need a reline or replacement.
- Bad Breath/Taste: When food debris is lodges between the denture and gums, it can cause a bad taste in your mouth or a foul odor. This warrants a readjustment.
- Changes in Speech: Ill-fitting dentures move around when you speak, making it more difficult for you to say certain words. If you are slurring, lisping, or salivating excessively while you speak, it may be time for a reline.
- Discomfort: Dentures take some time to get used to, but if they are particularly uncomfortable, causing jaw soreness, or you feel uneven pressure, you should let your dentist know right away.
If you have issues with your dentures, you shouldn’t try to wait them out. Instead, give your dentist a call. By addressing the issue now, you could prevent some serious issues down the road.
About the Author
Dr. Cline earned his dental doctorate at Creighton University. Since then, he has completed numerous hours of continuing education. He has received state-of-the-art training in dental implants, wisdom tooth removal, IV sedation dentistry, root canal therapy, and many other aspects of general dentistry. If your dentures don’t fit how they should, he’d be happy to help! For more information or to schedule an appointment at his office in Idaho Falls, visit his website or call (208) 487-5987.