What Happens to Your Gums When Your Dentures Don’t Fit Right?

If your dentures don’t fit right, they'll cause pain, sores, and scar tissue. Keep going to your checkups to prevent these problems.

What Happens to Your Gums When Your Dentures Don’t Fit Right?

A patient of ours wore the same set of dentures comfortably for almost eight years. Nothing changed (or so she thought) until she developed a raw, tender spot on her gums that just wouldn’t heal. She figured it would eventually go away, but it didn’t. By the time she came in for a consult, the irritation had turned into a firm little ridge of extra tissue right where the edge of her dentures were rubbing. 

When your jaw changes shape, your dentures won’t fit anymore. Most dentures need to be replaced after five to ten years, or even sooner if your jaw changes shape faster than average. A dentist can spot these shifts early on, long before they turn into problems, so don’t skip your checkups! A simple refit could save you a lot of irritation.

Why Do Dentures Stop Fitting?

As the shape of your jaw shifts, dentures that once fitted snugly can start rocking or sliding, which irritates your gums. But gum irritation is only part of the story. 

Underneath your gums, your jawbone is constantly remodeling itself, and without natural tooth roots to stimulate it, that bone can gradually shrink. The bone tissue gets deconstructed and redistributed to other parts of your body in a natural process called bone resorption. Over time this process reshapes your jaw, including the bony ridge underneath your gums.

Signs Your Dentures Don’t Fit Right

Does wearing your dentures hurt? Pain is usually a sign that they aren’t fitting properly. Loose dentures can slide around your mouth, causing uncomfortable friction, while dentures that are too tight can pinch and irritate your gums.

Here are some of the other signs that your dentures need adjustment:

  • Difficulty chewing on one side
  • Dentures that feel loose by evening
  • Gums that look red or swollen where the dentures rest
  • They make clicking or whistling sounds when you talk

A realignment will resolve most fit problems, but if the shape of your jaw has changed significantly, you may need a new set. Wearing a new set of dentures designed to fit the current shape of your mouth (not the shape it was five years ago) will make a real difference in your comfort.

Why Ill-Fitting Dentures Irritate Your Gums

Dentures rest directly on the soft tissue of the gums, and that tissue isn’t built to handle constant contact. When dentures no longer fit the way they used to, the edges can start to dig into your gums every time you chew, talk, or move your mouth.

That ongoing friction can lead to real tissue changes, like scar tissue forming where your dentures rub against your gums. It’s not usually dangerous, but it is uncomfortable, and it tends to get worse the longer the dentures go unadjusted.

Dentures and Dental Implants in Sun Lakes, Arizona

If you’re eligible for dental implants, they are a more comfortable, long-term option. Because they’re anchored directly into the jawbone, they never have to be replaced. They also stimulate the nerves in the jaw, which helps with preserving bone density and the shape of your face. 

But if you prefer wearing dentures or they’re your best option at the time, we can make sure that they’re fitting properly so they don’t cause you any pain. Don’t wait for irritation from ill-fitting dentures to get worse. Our Sun Lakes team can take a look, figure out what’s changed, and get you back to a comfortable fit. Contact us to schedule an appointment today.

 

Photo by Vidak on Unsplash used with permission under the Creative Commons license for commercial use 7/16/26.