What the Research Says About All-on-4 Success Rates
Specialist Prosthodontist · Taki Dent, Antalya
Long-term studies consistently show full-arch implant treatment is highly successful: implant survival of roughly 94–98% at ten years for both All-on-4 and All-on-6 in well-selected cases by experienced surgeons. The original All-on-4 protocol now has more than fifteen years of published follow-up confirming four implants reliably support a full arch for decades. The numbers are similar between four and six implants; what moves them is case selection, surgical skill, bridge quality and patient hygiene — not the implant count alone. The research strongly supports both techniques when delivered by a specialist clinic.
What do the survival numbers show?
Across the published literature, full-arch implant survival sits in the region of 94–98% at ten years for both four- and six-implant configurations, in well-selected patients treated by experienced surgeons. The All-on-4 concept, pioneered in the early 2000s, now has well over fifteen years of follow-up data behind it — long enough to say with confidence that four well-placed implants carry a full arch durably over the long term.
These are strong numbers for any surgical treatment, and they are why full-arch implants have become a mainstream solution rather than an experimental one.
| Measure | All-on-4 | All-on-6 |
|---|---|---|
| 10-year implant survival | ≈94–98% | ≈94–98% |
| Years of follow-up | 15+ | Substantial |
| Mechanical complications | Low | Slightly lower |
| Biggest success driver | Clinic + hygiene | Clinic + hygiene |
Is there a research difference between four and six?
The headline survival figures are similar. Where some studies find a modest edge for six implants is in mechanical complications — fewer issues under heavy load and in longer arches, because more implants share the force and reduce the cantilever at the back. Biological outcomes (gum and bone health) track more with hygiene and smoking than with implant count.
So the evidence does not crown a clear winner. It supports both, and points to anatomy and bite as the reasons to prefer one over the other in a given patient.
What does the research say actually drives success?
This is the useful part. The studies repeatedly identify the same success factors: careful case selection (right patient, right plan), surgical experience and precise placement, quality implant systems and a well-made bridge, and — critically — patient factors like hygiene and not smoking. In other words, the research says the clinic and the patient drive the outcome more than the choice between four and six implants. That is exactly why a specialist-led, accredited clinic with strong protocols gives you the best odds, whichever configuration suits your case.
At Taki Dent in Antalya — rated 9.8/10 by UK patients and led by Specialist Prosthodontist Dr. Sadık Taki — both All-on-4 and All-on-6 are offered at fixed, all-inclusive prices with a written guarantee. For a free, CT-based recommendation and a fixed quote, get in touch and we will tell you honestly which option suits your case.
Frequently asked questions
What is the success rate of All-on-4?
Long-term studies show implant survival of roughly 94–98% at ten years in well-selected cases, with over fifteen years of follow-up confirming the protocol's durability.
Does research show All-on-6 is more successful?
Survival is similar. Some studies show slightly fewer mechanical complications with six implants under heavy load, but biological outcomes track with hygiene, not implant count.
What does the research say matters most?
Case selection, surgical skill, quality materials and patient hygiene — the clinic and the patient drive success more than the choice between four and six implants.