How long do dental implants last? The real failure rates
Around 95% of implant fixtures are still in place at ten years and roughly 90% at twenty. The crown attached to it is the part that wears out, typically needing replacement at ten to fifteen years. Smoking, uncontrolled diabetes and untreated gum disease are what move those numbers most.
- Fixture survival, 10 yr
- ~95%
- Fixture survival, 20 yr
- ~90%
- Crown lifespan
- 10 – 15 yr
- Smokers, 10 yr survival
- ~85%
"Implants last a lifetime" is the industry’s favourite sentence and it is about two-thirds true. The titanium fixture usually does last a lifetime. The parts attached to it are consumables, and nobody mentions that at the consultation.
What the survival data actually says
| Timeframe | Fixture still in place | Notes |
|---|---|---|
| 1 year | 97 – 99% | Early failures are integration failures |
| 5 years | 95 – 97% | |
| 10 years | 93 – 96% | The figure most often quoted |
| 15 years | ~92% | |
| 20 years | 88 – 92% | Fewer studies run this long |
These are pooled figures for single implants placed in healthy bone by experienced operators. Full-arch cases, immediate-load cases and grafted sites all run a few points lower.
The two distinct kinds of failure
Early failure — the implant never integrates
In the first three to six months the bone either grows onto the fixture or it does not. When it does not, the implant becomes mobile and has to come out. This accounts for roughly 2–3% of cases and is usually detected at a routine check before the crown is made. The site is allowed to heal and, in most cases, a second attempt succeeds.
Late failure — peri-implantitis
This is the one worth understanding, because it is the one you influence. Peri-implantitis is inflammatory bone loss around an integrated implant, essentially gum disease around a titanium post instead of a root. It is largely painless until it is advanced, which is why six-monthly reviews are not a sales tactic.
What changes your odds
| Factor | Effect on 10-year survival |
|---|---|
| Smoking | −8 to −12 percentage points |
| Uncontrolled diabetes (HbA1c >8) | −5 to −10 points |
| Untreated periodontal disease | −5 to −10 points |
| Bruxism without a night guard | −3 to −6 points |
| Grafted site vs native bone | −2 to −4 points |
| Head and neck radiotherapy | Substantial; needs specialist planning |
| Good hygiene + regular reviews | + several points |
Smoking is the big one and the effect is dose-dependent. Stopping for two weeks before placement and eight weeks after measurably improves integration, which is a more achievable ask than quitting permanently.
The parts that are consumables
- The crown — ten to fifteen years typically, sometimes longer. Replacement costs $1,100 to $2,300, considerably less than the original implant because the fixture stays put.
- The abutment screw — can loosen or, rarely, fracture. Retightening is a short appointment. This is the most common minor problem and it is not a failure.
- The overdenture attachments, on implant-retained dentures — these wear and are replaced roughly annually at modest cost.
Budget for a crown replacement once in the life of the implant. Anyone quoting you a lifetime cost that omits it is quoting optimistically.
What actually extends an implant’s life
- Two professional cleanings a year, with someone who uses instruments appropriate for implant surfaces rather than steel scalers.
- Interdental brushes daily. Floss is less effective around an implant crown than a small brush is.
- A night guard if you grind. Implants have no ligament to cushion load, so grinding transmits directly into bone and into the screw.
- Treat gum disease elsewhere in the mouth before placement, not after.
- Stop smoking around the surgery, even temporarily.
Common questions
Do dental implants really last a lifetime?
The fixture usually does — around 90% are still in place at twenty years. The crown on top typically needs replacing at ten to fifteen years.
What is peri-implantitis?
Inflammatory bone loss around an implant, caused by bacterial infection. It is the main cause of late implant failure and is largely painless until advanced, which is why regular reviews matter.
Can a failed implant be replaced?
Usually yes. The site is cleaned and allowed to heal, sometimes with a graft, and a new fixture is placed three to six months later. Success rates on a second attempt are slightly lower but still high.
Are implants a bad idea if I smoke?
Not disqualifying, but the failure rate roughly doubles. Most practices will ask you to stop for two weeks before and eight weeks after, which materially improves the odds.
Do implants set off airport metal detectors?
No. The amount of titanium is far too small, and titanium is only weakly detected in any case.
