Why Are Lower Dentures Always Loose?

by Rolando G. Reyes, DMD

If you wear lower dentures, you may have experienced the frustration of them becoming loose or shifting around in your mouth. This can not only be uncomfortable, but it can also affect your ability to speak and eat properly. So why do lower dentures often have this issue?

The Anatomy of the Lower Jaw

The main reason is due to the anatomy of the lower jaw. Unlike the upper jaw which is supported by the palate and suction, the lower jaw is only supported by the bony ridge where the teeth used to be. This ridge can change over time due to bone resorption, which is a natural process where the bone shrinks as a result of tooth loss. When this happens, the denture no longer fits as snugly as it used to, leading to the loose and shifting sensation.

Movement of the Tongue and

Cheeks

Another reason why lower dentures can be loose is due to the tongue and cheeks constantly moving and pushing against the denture, especially during speech and eating. This movement can cause the denture to become dislodged and shift around in the mouth.

Options for Treating Loose Lower Dentures

Fortunately, there are several ways to address the issue of loose lower dentures. Here are some options:

1. Adhesives

There are denture adhesives available that can provide some additional suction and stability to your denture. However, it's important to use the adhesive as directed and not rely solely on it to keep your denture in place.

2. Implants

Dental implants are another option for those who are looking for a more permanent solution. Implants are surgically placed into the jawbone and act as anchors for the denture to attach to. This can provide a more stable and secure fit for the denture.

3. Relining

If your denture is still in good condition but just needs a better fit, your dentist may recommend a denture reline. This involves adding a new layer of material to the base of the denture to improve the fit and stability.

4. New Denture

In some cases, a new denture may be necessary if the current one is too worn or damaged to be relined or if the bone resorption has significantly altered the shape of the jaw.

Adjusting to Changes

It's important to note that it may take some time to adjust to any changes made to your denture, and some discomfort and soreness may be expected initially. However, with proper care and maintenance, you can enjoy a more stable and comfortable fit for your lower denture.

Conclusion

Loose lower dentures can be a frustrating and uncomfortable issue for many patients. However, by understanding the reasons why this occurs and exploring the available options for treatment, you can take steps towards finding a solution that works best for you. If you are experiencing issues with your lower denture, be sure to consult with your dentist to determine the best course of action for your individual needs.