How Long Do Dental Implants Last? What the Evidence Actually Says

Most people ask this question after they have already decided an implant is worth considering. The worry underneath it is simpler: am I paying for this once, or am I going to keep paying for it?

The short answer: The implant post in the jawbone often lasts 20 years or more, and frequently a lifetime. The crown on top usually lasts 10 to 15 years before it needs replacing, depending on wear and grinding. Daily brushing and flossing, regular checkups, and a night guard if you grind are what extend both.

The honest answer is that “the implant” is really two things with two different lifespans, and that how long yours lasts depends less on the implant itself than on what happens in the years after it goes in.

Two Parts, Two Lifespans

An implant is not one piece. It has three parts, and they age differently.

• The implant post is the titanium root fixed in the jawbone. Once the bone has bonded to it, it is protected from direct chewing wear.
• The abutment connects the post to the tooth. Its screw can occasionally loosen, which is usually a quick tightening or replacement.
• The crown is the visible tooth. It takes the full force of every bite, so it wears and can chip, and is eventually remade, just like a crown on a natural tooth.

When people say implants last a lifetime, they mean the post. When someone is surprised by a bill ten years later, it is usually the crown.

What the Evidence Actually Says

A 2019 systematic review in the Journal of Dentistry pooled prospective studies of modern implants followed for ten years and estimated ten-year survival at 96.4% (source). When the authors adjusted for patients who dropped out of the studies, a more conservative estimate came to 93.2%.

A separate review of single implants followed for at least ten years found implant survival of 95.0%, while 89.5% of the original crowns were still in place; the rest had been remade (source). The authors concluded that replacing a crown should be expected as part of normal maintenance.

So the headline is real: roughly 19 in 20 implants are still in place after a decade. But “still in place” is a lower bar than most people assume.

The Part Most Articles Leave Out

Survival counts an implant as a success if it is still in the mouth. It says nothing about whether the gum and bone around it are healthy.

The most common long-term problem is peri-implantitis, an infection that destroys bone around an implant in much the same way gum disease destroys bone around a tooth. A recent systematic review and meta-analysis by the Academy of Osseointegration and the American Academy of Periodontology found peri-implantitis in about one in five patients with implants, and inflammation of the gum around implants (mucositis) in nearly half (source). Mucositis is reversible. Peri-implantitis is much harder to treat.

The same review identified who is most at risk: people with a history of gum disease, people with diabetes, smokers and heavy drinkers. The 2019 survival review also found lower ten-year survival in patients aged 65 and over in its adjusted analysis.

None of this is a reason to avoid implants. It is the reason the years after placement matter as much as the placement itself.

What Actually Decides How Long Yours Lasts

Maintenance visits. In a five-year study of patients who already had gum inflammation around their implants, 18.0% of those who kept up regular professional maintenance went on to develop peri-implantitis, compared with 43.9% of those who did not (Costa et al., 2012). A seven-year study found that patients without regular maintenance had about four times the risk (source).

Your gum health before treatment. Active gum disease is the strongest risk factor. It should be treated and under control before an implant goes in, not after.

Smoking and diabetes. Both raise the risk of infection and bone loss around implants. Stopping smoking around treatment and keeping diabetes well controlled both help.

Grinding. Night-time grinding overloads the crown and the screw that holds it. A night guard protects both.

Planning and bite. An implant positioned for where the final crown needs to sit, with the bite balanced around it, carries load evenly. One placed where the bone happened to be, and restored around afterward, often does not.

Who Gets the Longest Life From an Implant

Implants tend to last longest for people who have healthy or well-treated gums, do not smoke or are willing to stop around treatment, keep up professional cleanings at the interval their dentist recommends, and wear a night guard if they grind.

If one of these does not describe you, an implant is often still the right choice. The plan should simply account for it from the start, rather than discovering it later.

What Maintenance Looks Like Here

Routine visits check the gum around each implant and, periodically, the bone level on X-ray, so that inflammation is caught while it is still reversible. Professional cleanings around implants use instruments that will not scratch the implant surface.

Because our dental laboratory is in-house, a worn or chipped implant crown can be remade here rather than sent to an outside lab, and night guards are made on site. When a crown eventually needs replacing, the implant underneath usually does not.

What to Ask Any Practice

• Who places the implant, and who restores it: the same practice, or two?
• How is the implant position planned, and on what scan?
• What maintenance schedule do you recommend afterward, and what does each visit include?
• If the crown wears or chips in ten years, what happens, and who makes the new one?
• Do I grind, and do I need a night guard?
• Given my gum health, smoking and medical history, what is my personal risk?

Final Takeaways

• An implant has two lifespans: the post, which often lasts decades, and the crown, which is usually remade at some point.
• Ten-year studies put implant survival at roughly 93% to 96%.
• In one review of single implants, 89.5% of original crowns were still in place after ten years.
• About one in five people with implants develop peri-implantitis, an infection around the implant.
• Regular maintenance cut the five-year rate of peri-implantitis from 43.9% to 18.0% in one study.
• Gum disease history, smoking, diabetes and grinding all shorten an implant's life; most can be managed.
• How long your implant lasts depends as much on the years after placement as on the placement itself.

Research References

1. Howe MS, Keys W, Richards D. Long-term (10-year) dental implant survival: a systematic review and sensitivity meta-analysis. J Dent. 2019;84:9–21. repository
2. Hjalmarsson L, Gheisarifar M, Jemt T. A systematic review of survival of single implants as presented in longitudinal studies with a follow-up of at least 10 years. Eur J Oral Implantol. 2016;9 Suppl 1:155–162. quintessence
3. Prevalence, incidence, systemic, behavioral, and patient-related risk factors and indicators for peri-implant diseases: an AO/AAP systematic review and meta-analysis. pubmed
4. Costa FO, Costa JE, et al. Peri-implant disease in subjects with and without preventive maintenance: a 5-year follow-up. J Clin Periodontol. 2012.
5. Impact of supportive implant therapy on peri-implant diseases: a retrospective 7-year study. J Clin Periodontol. 2020;47(1):101–109. pubmed

Where to Go From Here

Makris Dental Prosthodontics is a specialty prosthodontic practice at 13250 Narcoossee Rd #103 in Lake Nona Medical City, Orlando. Dr. Elizabeta Cokovska is a board-certified prosthodontist with over 30 years in practice.

If you are missing a single tooth, start with single tooth implants. If you are replacing several teeth or a full arch, start with dental implants or All-on-4 and All-on-6. If you already have implants elsewhere and want them checked, a maintenance visit is the place to begin. You can also see more before and after results.

Call (407) 753-4743 or request a consultation online. You will leave the first visit with a written assessment either way.