How Long Do Dental Implants Last — and When Does the Crown Need Replacing?

A well-integrated, well-maintained dental implant can last for decades — often for life. What does wear out is the crown: the visible tooth screwed or cemented on top. Over the years it may need an adjustment, a repair or a replacement. So the honest answer to “how long does an implant last?” has two parts: the titanium root, and the tooth on top of it.

The implant and the crown are different things

Every implant restoration has three parts:

1. The implant — the titanium post placed inside your jawbone that works as a root. Once it fuses with the bone (osseointegration), it stays put.
2. The abutment — the connector between the implant and the tooth.
3. The crown (or bridge, or full-arch prosthesis) — the tooth you see and chew with.

Titanium doesn’t decay or wear down. What puts an implant at risk is what happens around it: the gum and the bone. The crown, on the other hand, takes the full force of chewing every single day, and that is where wear shows up.

How long each part lasts

	What to expect	What shortens it
Implant (titanium)	Can last decades	Smoking, poor hygiene, uncontrolled diabetes
Zirconia / metal-free crown	Many years; the most fracture-resistant	Grinding, chewing ice or hard objects
Porcelain-fused-to-metal crown	Many years; common on molars	Grinding, impact
Removable denture on implants	The acrylic wears sooner and needs relining	Daily wear, bone changes

Our implant prosthesis care guide gives estimated ranges by material: roughly 15 to 25 years for zirconia crowns, 15 to 20 for porcelain-fused-to-metal and 5 to 8 for acrylic overdentures. Those are estimates with good hygiene and no grinding — every mouth is different.

Signs your implant crown needs repair or replacement

A crown isn’t replaced on a schedule; it’s replaced because something changed. Watch for:

• The crown wiggles when you bite or touch it with your tongue. Often it’s just a loose screw that we re-tighten in the office. Don’t chew on it while it’s loose.
• A chip or a sharp edge. Broken porcelain irritates your tongue and no longer protects the implant well.
• A dark line or receding gum around the crown. It may be cosmetic, but it can also mean the gum or bone changed — worth checking.
• Food gets trapped between the crown and the next tooth. Natural teeth shift slightly over the years and gaps appear.
• Your bite feels different, or one spot hits first.

If the problem is the crown and the implant is healthy, only the crown is replaced — no new surgery. A screw-retained crown can be removed, the screw checked and the crown put back or replaced; a cemented crown can take more work to change.

When does the implant itself need replacing?

Far less often — and never just “because it’s old.” An implant is removed when:

• The implant itself moves (not just the crown).
• There is significant bone loss around it from peri-implantitis that can’t be controlled.
• The implant fractures, which is uncommon.

When an implant is removed, the bone is usually allowed to heal and then we evaluate whether a new one can be placed. We cover this in signs of a failing dental implant.

What makes your implant last longer

The good news: almost everything that extends an implant’s life is in your hands.

• Implant-specific daily hygiene: soft brush along the crown-gum line, Super Floss, an interdental brush and a water flosser. Infection around an implant can progress without pain, so “it doesn’t hurt” doesn’t mean “it’s fine.”
• Check-ups every 6 months (every 3–4 months if you smoke, have diabetes or have had gum disease). We clean with instruments made for implants, check the gum and, on screw-retained crowns, the screw.
• Don’t smoke. Tobacco is the main cause of implant failure, early on and years later.
• Wear a night guard if you clench or grind. Grinding is what breaks the most crowns; a custom night guard spreads the force while you sleep.
• Don’t use your teeth as tools — no chewing ice, pens or opening packages.

At our office in Mexicali

Implants at our office are placed by Dr. Fidel Machado, a specialist in implantology and prosthodontics. Because he is also a prosthodontist, he plans the final tooth from day one — which matters years later when a crown needs adjusting or replacing. He sees patients mainly on Saturdays, so a check-up doesn’t have to cost you a workday. We are about 3 miles from the Calexico West crossing.

If you already have an implant — placed here or back home — and want to know how it’s doing, book a check-up. We look at the gum, the screw and the crown, and if anything is needed we send you a written plan by WhatsApp with the cost of each part before any work begins. You can pay in U.S. dollars, and our front desk answers in English. Current list prices are on our price list and in the Quick facts above.

Still deciding? Compare an implant, a bridge and a denture, or see how we work in dental implants in Mexicali.