The Lifespan of Your Smile: How Long Do Dentures Really Last?
At Sullivan Denture Centre in Surrey, BC, one of the most common questions we hear is: "How long can I expect my dentures to last?" It’s a great question, and the answer is important for budgeting, planning, and maintaining your oral health.
The short answer is typically 5 to 10 years.
However, the real answer is more nuanced. The physical materials of your denture might hold up well past a decade, but the health and shape of your mouth change constantly. As specialized denturists, we focus not just on the life of the appliance, but on the life of your comfort, fit, and confidence.
Here is a breakdown of what determines the longevity of your dentures and why regular maintenance is key to extending their functional life.
The 5–10 Year Standard: Why the Clock Starts Ticking
For most conventional Complete (Full) Dentures and Partial Dentures, the recommendation is to have them evaluated for replacement around the 5 to 10 year mark.
The materials used in modern dentures are durable. The teeth are typically a high-quality acrylic resin or composite, and the pink base is a strong acrylic. So why the need for replacement?
It’s not the denture that changes; it’s your mouth.
When natural teeth are lost, the jawbone no longer receives the necessary stimulation, leading to a natural process called bone resorption (shrinkage). This means:
The bony ridges in your mouth gradually shrink and flatten. Your gums change shape and contour. The once-perfectly-fitted denture now rests on a constantly changing foundation.
As your mouth changes, a denture that is too old or ill-fitting can cause more than just discomfort—it can contribute to faster bone loss, lead to chronic sore spots, and negatively impact your facial appearance.
Factors That Influence Denture Longevity
The 5 to 10 year window is just an average. The true lifespan of a comfortable, well-fitting denture depends heavily on three key factors:
Quality and Type of Denture
The dentures crafted by the Sullivan Denture Centre team leverage superior materials and our on-site lab technology, including digital and 3D printing. Higher quality, more premium appliances (like our Signature Dentures) are designed for greater durability and a more accurate initial fit, which can contribute to longer-lasting comfort. Removable Dentures on Implants last even longer, as the dental implants act like artificial roots, stimulating and preserving the jawbone, which dramatically stabilizes the fit and prevents accelerated bone loss.
Daily Care and Maintenance
Just like natural teeth, your dentures require consistent daily care. Proper brushing with a non-abrasive cleanser and soaking helps prevent the buildup of plaque, tartar, and bacteria that can damage the acrylic and cause oral health issues. Dropping your dentures is the most common cause of premature damage.
Professional Denture Maintenance (Relines and Rebases)
This is arguably the most critical factor. The fit of your denture should be checked by a denturist at least once a year.
We recommend a Denture Reline every 1 to 3 years. A reline involves adding new acrylic to the inside base of the denture to restore a snug fit against your current gum contours. A reline revitalizes the comfort and stability of your existing denture, allowing you to get more life out of it before a full replacement is needed.
A Rebase is a more extensive
process, replacing the entire acrylic base material while keeping the existing teeth.
The Role of Your Denturist
Regular appointments with a dedicated licensed denturist—like our Denturists, Tricia Thobaben and Jimmy Phan—are essential. With decades of specialized experience, they know exactly when a simple adjustment, a reline, or a new set of dentures is the most appropriate step.
When to Consider a New Denture
It’s time to book a consultation for a new appliance if you notice any of the following, even if your dentures are less than 10 years old:
- Excessive Looseness or Slipping: Your dentures move frequently while talking or eating, even after using adhesive.
- Difficulty Chewing: You can no longer comfortably eat certain foods.
- Constant Sore Spots: Persistent pain or irritation that doesn't go away with minor adjustments.
- Worn Down Teeth: The chewing surfaces are noticeably flat, which can affect digestion and jaw alignment.
- A "Sunken" Facial Appearance: If you notice deep lines around your mouth or a change in the position of your chin, it’s a sign that the reduced bone structure requires a new denture to restore proper facial support.
Your Next Step to a Long-Lasting Smile
Don't wait until your dentures are causing pain or hindering your daily life. At Sullivan Denture Centre, we are dedicated to crafting and maintaining personalized smiles and we can help you understand the true age and condition of your dentures. Whether you need a simple Denture Repair, a crucial
Reline/Rebase, or want to explore the superior stability of
Implant-Supported Dentures, we are here to ensure your smile lasts as long as possible.










