Is All-on-6 Better Than All-on-4? An Honest Specialist View

It is the question I am asked most often by patients arriving from the UK: "Doctor, is All-on-6 better than All-on-4?" They have usually read that more implants must mean a better result, and they want to make the right decision. My honest answer, after planning hundreds of full-arch cases, is this: neither procedure is universally better — and anyone who tells you otherwise is selling, not advising.

What follows is the same explanation I give in consultation: when six implants genuinely win, when four are more than enough, and how to tell which is right for your own mouth.

The honest premise: both are excellent

All-on-4 and All-on-6 are both proven, fixed full-arch solutions. Both give you a permanent bridge of 10–14 teeth, usually with a temporary fixed set the same day. Both have documented 10-year implant survival of roughly 94–98% in well-selected cases. So the real question is not "which is better in general?" but "which is better for you?"

When All-on-6 is genuinely the better choice

There are clear situations where I recommend the extra two implants:

• You have dense, generous bone — especially good height at the back of the jaw, where All-on-6's upright posterior implants need it.
• You have a heavy bite or you grind (bruxism). Spreading force across six implants reduces stress on each one and lowers the risk of mechanical complications over the years.
• You have a long arch or a large jaw. A longer span benefits from more support points.
• You value redundancy. If one of six implants is ever lost, five still carry the bridge. Lose one of four and the impact is bigger.

For these patients, the extra £1,500–£2,500 per arch buys a durability margin that is genuinely worth it.

When All-on-4 is the smarter choice

For the majority of patients I see, All-on-4 is the right answer:

• You have moderate bone loss. All-on-4's tilted implants engage the dense bone at the front of the jaw and avoid the sinus and nerve — so you often avoid grafting entirely.
• You want the most cost-effective fixed solution. Same fixed teeth, less money.
• You have an average bite and good hygiene. In this situation All-on-4 lasts every bit as long as All-on-6.

Pushing a patient toward All-on-6 when All-on-4 suits them perfectly is, in my view, poor practice. It costs the patient more and, if their bone is borderline, can introduce risk for no clinical gain.

The mistake patients make

The most common error is treating implant count like horsepower — assuming more is always better. It is not. Six implants in bone that cannot properly support them is worse than four implants placed expertly where the bone is strong. Placement quality and planning matter far more than the number. A skilled surgeon doing All-on-4 will out-perform a rushed clinic doing All-on-6 every time.

How the decision is actually made

In practice, I never decide this from a photo or a phone call. I take a CBCT (3D) scan, measure bone height and density across the arch, assess your bite and ask about grinding, then recommend the option that is safe and durable for you — and explain exactly why. That conversation is the whole point. You can read how those factors weigh up on our who-needs-which guide.

My verdict

Is All-on-6 better than All-on-4? It is better for the right patient, and unnecessary for many others. Get a 3D scan, ask your clinician to justify their recommendation with your anatomy, and be wary of anyone who reaches for the more expensive option without that evidence — or the cheapest one to win your booking.

At Taki Dent in Antalya we plan both procedures for UK patients every week, with a free remote assessment, fixed all-inclusive pricing and a 5-year written guarantee. If you would like an honest recommendation for your case — All-on-4 or All-on-6 — that is exactly what we are here to give.

Frequently asked questions