All-on-4 vs All-on-6: Which Full-Arch Implant Option Suits You?

When people weigh up All-on-4 vs All-on-6, they are choosing between two versions of the same idea: a full arch of fixed teeth screwed onto implants instead of a removable denture. All-on-4 uses four implants per jaw, with the back two usually angled to avoid the sinuses or the nerve. All-on-6 uses six, which spreads the biting load across more support but needs enough bone in more places. Neither is better for everyone. Your bone volume, bite, general health and the type of final bridge decide which one a dentist will recommend after a 3D scan.

In short: All-on-4 often suits people with limited bone at the back of the jaw and can avoid grafting. All-on-6 adds support and a margin of security where bone allows. Ask for a CBCT-based plan that explains why one option suits your jaw.

What All-on-4 and All-on-6 have in common

Both are full-arch treatments for people who have lost most or all of their teeth in one jaw, or whose remaining teeth cannot be saved. In both cases:

• the remaining teeth are removed, if needed, and the implants are placed in a single surgery
• a fixed temporary bridge is often fitted within days, so you are not left without teeth
• the final bridge is made once the implants have fused with the bone, typically a few months later
• the bridge is fixed with screws and can only be removed by a dentist for cleaning or repairs

The overall journey looks much like the one in our step-by-step guide to the dental implant process in Turkey: an assessment, a surgery trip, healing at home and a second trip for the final teeth.

All-on-4 vs All-on-6 at a glance

Who All-on-4 tends to suit

All-on-4 was developed for jaws that have lost bone at the back, which is common after years of missing teeth or wearing a denture. By tilting the two back implants, the surgeon can use the denser bone at the front and still support teeth further back. Dentists often consider it when:

• the upper jaw has large sinuses or the lower jaw has a low nerve
• you want to avoid or reduce bone grafting and the extra healing time it brings
• you are in reasonable health but would prefer a shorter surgery

The trade-off is that each implant carries more of the load. People who grind or clench heavily may be advised to have more implants, a night guard, or both.

Who All-on-6 tends to suit

All-on-6 is often recommended when there is enough bone in the right places, or when bone can be built up with grafting first. The two extra implants share the biting force and can allow a bridge with more teeth at the back. Dentists may lean towards it for:

• people with a strong bite or a history of grinding
• the upper jaw, where bone is usually softer than in the lower jaw
• patients who want a margin of support if one implant ever has a problem

If you need grafting to make All-on-6 possible, the timeline can stretch, and in some cases it adds a trip. Our guide to bone grafting and sinus lifts explains what that involves.

Same-day teeth and the final bridge

Many clinics fit a fixed temporary bridge within a few days of surgery. This is called immediate loading, and it depends on the implants being firmly anchored when they are placed. If they are not, the dentist may advise a removable denture during healing instead. Ask before you travel what will happen in each case, so you are not surprised.

The final bridge usually comes on the second trip. Common designs include:

• acrylic teeth on a metal frame: lighter and easier to repair, but the teeth wear and stain over time
• zirconia: very strong and stain-resistant, but heavier and harder to adjust
• ceramic layered on a frame: natural looking, with chipping a possible risk

Each has pros and cons for your bite and budget. Ask to see examples and how repairs are handled if something chips once you are home.

Questions to ask a clinic before choosing

Bring these to your consultation, whether it is online or in person:

1. Why do you recommend four or six implants for my jaw, based on my scan?
2. Will I need grafting or a sinus lift, and how would that change the timeline?
3. Which implant system and which bridge material are included in the quote?
4. Will I leave the first trip with fixed temporary teeth, and what if that is not possible?
5. How many days do I need for each trip, and how far apart?
6. What does the guarantee cover, and how are repairs handled if I live abroad?

Pages from the clinic itself can help you prepare. VDC Dental Clinic in Antalya explains its approach on its All-on-4 implant page and its All-on-6 implant page, which are useful to read before a call.

Living with a full-arch bridge

A fixed bridge feels much closer to natural teeth than a denture, but it still needs care. Expect to:

• clean under the bridge every day with a water flosser, interdental brushes or special floss
• attend regular check-ups and professional cleans, where the bridge may be unscrewed
• follow a soft diet during the early healing months, as covered in what to eat after dental implants
• wear a night guard if your dentist advises it

If you are still deciding whether implants are right for you at all, compare the options in dental implants vs dentures.

Frequently asked questions

Is All-on-6 always better than All-on-4?

No. More implants spread the load, but they also need more bone and a longer surgery. For a jaw with limited bone at the back, All-on-4 may be the better plan. The right choice depends on your scan and bite.

Can I have All-on-4 on top and All-on-6 on the bottom?

Yes, this is possible. Each jaw is planned separately, and it is common for the upper and lower jaws to need different numbers of implants because the bone quality differs.

How long does a full-arch bridge last?

It depends on the material, your bite, your cleaning and whether you smoke. The implants themselves can last many years with good care, while the teeth on the bridge may need repairs or replacement over time. Ask the clinic what maintenance to expect.

Will I be without teeth during treatment?

Usually not. Most people leave the first trip with temporary teeth, either a fixed temporary bridge or a removable denture, depending on how firm the implants are at placement.