How Long Do Dental Implants Last?

An implant is the most expensive thing most people ever put in their mouth, so "how long does it last?" is a fair question. The honest answer has two halves, because an implant is not one object — and the half that fails first is almost never the half people worry about.

The screw and the tooth age differently

• The fixture — the titanium post in your jawbone. Once the bone has grown around it, it is not wearing out in any ordinary sense. Long-term studies commonly report around 90–95% still in place at ten years, and plenty go far longer.
• The crown — the visible tooth on top. This is a wearing part. It chips, it wears, the porcelain ages. Replacement somewhere around the ten-to-fifteen-year mark is normal rather than a failure.

That distinction matters when you are comparing clinics or reading a guarantee. A crown that needs replacing after twelve years is a routine event. A fixture that comes loose is not.

Implants do not get cavities — which is the trap

There is no nerve and no enamel, so an implant cannot decay. People hear that and quietly relax about cleaning it.

The gum and bone around it are still living tissue, and they can become infected exactly like they do around a natural tooth. That condition has a name, peri-implantitis, and it is the single most common reason implants are lost years after a successful placement.

The dangerous part is that it is usually painless until it is advanced. A natural tooth aches and sends you to a dentist. An implant often gives you nothing to react to while the bone supporting it quietly recedes.

What actually shortens an implant's life

• Cleaning around it. Plaque at the gum line is the direct cause of peri-implantitis. Implants also need cleaning under the crown edge, which ordinary brushing reaches badly.
• Smoking. The most consistently reported risk factor in the literature, by a wide margin.
• Uncontrolled diabetes, which slows healing and raises infection risk. Controlled diabetes is a very different picture.
• Grinding and clenching. An implant has no ligament to cushion it, so it absorbs force that a natural tooth would spread. Heavy grinding loosens components and cracks crowns.
• Skipping maintenance visits. The point of these is to catch bone loss on an X-ray before you can feel anything.

Looking after one properly

The routine is not hard, but it is not identical to a natural tooth:

• Interdental brushes sized to the gap, rather than relying on floss alone. Ask which size fits yours — it is a specific answer, not a general one.
• A water flosser helps many people reach the collar of the implant.
• Avoid abrasive or metal tools on the implant surface unless your dentist tells you otherwise.
• Professional cleaning on a schedule. Implants are cleaned with different instruments than natural teeth, which is a reason to have it done somewhere that knows you have one.

Warning signs worth an appointment

What you notice	Why it matters
Bleeding when you clean around it	The earliest sign of inflammation, and the most reversible
Gum pulling back, metal becoming visible	Bone level may be dropping
Any movement at all	Never normal at any stage — get it seen quickly
Discomfort when biting	Could be the crown, the screw, or the bone
Persistent bad taste or odour around it	Often infection in the pocket beside it

If one does fail

It is usually replaceable. The fixture comes out, the site heals, and depending on how much bone was lost a graft may be needed before a new one goes in — which adds months rather than weeks. This is worth knowing in advance, because the cost and timeline of a replacement are not the same as the original.

Questions to ask before you commit

Ask these at the consultation, not afterwards, and ask for the answers in writing:

1. What follow-up is included, and for how long?
2. What happens if the crown chips or the screw loosens — is that a repair or a new crown?
3. Which implant system are you using, and is it one my next dentist can get parts for?
4. How often should I come back for maintenance, and what happens at those visits?

The third question matters more for foreign residents than anyone else. If you move countries, a widely used system is far easier for another dentist to service than an obscure one — parts have to match.

At Seoul Lab Dental: implants are planned from a 3D scan with a written, itemised estimate explained in English before anything starts, and we will tell you in writing what follow-up is included and which system we are placing. If you expect to move abroad, say so at the consultation — it is a reasonable thing to plan around.