How Long Do Dental Implants Last? What Affects Their Lifespan

Quick answer: The implant post itself can last for decades — often a lifetime — because it fuses directly with the jawbone. The crown attached to it usually lasts 10 to 15 years before wear makes replacement worthwhile. How long your implant lasts depends mostly on bone and gum health, bite forces, smoking and how well you clean around it.

Implant vs crown: two different lifespans

An implant restoration is made of separate parts, and they age differently.

So when people say "my implant needed replacing", they usually mean the crown — a simpler job that does not involve surgery.

What the research says

Long-term studies report implant survival rates of roughly 90–95% after 10 years, and many implants are still functioning after 20 years or more. Survival is highest in non-smokers with healthy gums who attend regular check-ups.

7 factors that affect how long an implant lasts

1. Bone quality and quantity. Dense, healthy bone holds the implant firmly. Where bone was thin, grafting at the start improves long-term stability.
2. Gum health. Plaque around an implant can cause peri-implantitis, an infection that slowly destroys the supporting bone. It is the most common reason implants are lost after healing.
3. Smoking. Smoking reduces blood flow to the gums and bone and roughly doubles the risk of implant failure.
4. Grinding and clenching. Heavy night-time forces can loosen screws, chip crowns and overload the bone. A night guard protects both the implant and your natural teeth.
5. Medical conditions. Poorly controlled diabetes slows healing and raises infection risk. Well-controlled diabetes is usually not a barrier.
6. Planning and placement. An implant placed at the right angle and depth, with even bite contact, spreads forces safely. 3D scans and guided surgery help achieve this.
7. Position in the mouth. Back-tooth implants take heavier chewing loads, while front implants face higher aesthetic demands.

Signs your implant or crown needs attention

• Bleeding, swelling or pus around the implant
• A crown that feels loose or moves when you chew
• Food trapping or a bad taste around the implant
• Gum line shrinking and exposing metal
• A clicking feeling when you bite

A loose crown is often just a loose screw and can be fixed quickly. Bleeding and swelling should be checked promptly, because early peri-implantitis responds well to treatment.

How to make your implant last longer

• Brush twice a day with a soft brush and clean around the implant daily with floss, interdental brushes or a water flosser.
• Book a professional cleaning and check-up every 6 months, or every 3–4 months if you have a history of gum disease.
• Stop smoking, or at least cut down, especially around the surgery.
• Wear a night guard if you grind your teeth.
• Avoid using your teeth to open packets or crack hard shells.
• Keep blood sugar under control if you have diabetes.

Frequently asked questions

Can a dental implant last a lifetime?
Yes. With healthy bone and gums, good cleaning and regular check-ups, many implants never need to be replaced. The crown on top will usually need renewing at some point.

How long do implants last compared with bridges?
Bridges typically last around 10–15 years before they need replacing, and they depend on the health of the supporting teeth. Implants usually last longer because they do not rely on neighbouring teeth.

What happens if an implant fails?
The implant can usually be removed, the area treated and, after healing (sometimes with a bone graft), a new implant placed.

Do implants last longer in the upper or lower jaw?
The lower jaw generally has denser bone, so implants there tend to integrate slightly more predictably. With proper planning, both can last for decades.

This article is for general information and does not replace a personal examination. Treatment times and results vary from person to person.