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Risk and evidence

Implant Risks, Safety and Success

Dental implants succeed in around 90 to 95 per cent of cases over ten years and beyond. The main risks are early failure to integrate, later peri-implantitis from poor cleaning, and surgical complications, all of which are reduced by good case selection, an experienced clinician, and not smoking.

The short answer

  • Ten-year survival is commonly around 90 to 95 per cent in well-maintained cases.

  • Early failure, where the implant does not integrate, is uncommon and usually re-treatable.

  • Peri-implantitis is the leading late cause of failure and is largely preventable.

  • Smoking materially raises failure and complication risk.

  • Nerve and sinus complications are reduced by CBCT planning and experienced placement.

What the success evidence actually says

Implant dentistry is one of the better-documented areas of dentistry. Long-term studies put fixture survival at roughly 90 to 95 per cent at ten years in well-selected, well-maintained patients. Success is not the same as survival: a surviving implant should also be free of inflammation and bone loss, which is where maintenance comes in.

Headline rates hide variation. Front-tooth aesthetic cases, heavily grafted sites, smokers, and poorly controlled diabetes all carry higher risk than a straightforward back-tooth implant in a healthy non-smoker. An honest clinician quotes the rate for your case, not the best-case average.

Why implants fail

Early failure, in the first weeks to months, means the implant did not integrate with bone. It is uncommon, often linked to infection, poor stability at placement, or smoking, and is usually managed by removing the fixture, letting the site heal, and placing a replacement, frequently successfully.

Late failure is most often peri-implantitis, the inflammatory bone loss that follows poor cleaning, untreated gum disease, or excessive bite force. It is largely preventable with the maintenance routine and treatable if caught early. A loose crown can usually be re-tightened; a genuinely loose implant needs prompt assessment.

Lowering your risk

The biggest controllable factor is smoking, which raises both early failure and peri-implantitis risk; stopping before and during treatment measurably improves the odds. Controlling diabetes and treating active gum disease before placement matter too.

On the clinical side, CBCT planning reduces nerve and sinus complications, and clinician experience correlates with outcome, particularly on complex and full-arch work. Choosing the clinician carefully, covered in the choosing-a-dentist hub, is one of the most effective ways to lower risk.

Related treatments

Single-tooth

Single-Tooth Implants

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Full arch

Full-Arch Implants (All-on-4 / All-on-6)

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Bone grafting

Bone Grafting & Sinus Lifts

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Continue across the guides

Implant Aftercare and Living With Implants

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Choosing an Implant Dentist and Implants Abroad

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Common questions

Risks and success questions answered

Common questions on this topic, with specific UK figures where they apply.

Around 90 to 95 per cent survival at ten years in well-maintained cases. The rate is lower for higher-risk cases such as heavy smokers or heavily grafted sites.

Early failure usually means the implant did not integrate, often linked to infection or smoking. Late failure is most often peri-implantitis from poor cleaning or untreated gum disease, which is largely preventable.

True immune rejection is extremely rare because titanium is biocompatible. What people call rejection is almost always failure to integrate or peri-implantitis, both of which have identifiable causes.

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