What is the difference between All-on-4 and All-on-6 implants?

All-on-4 uses four implants per arch — two placed vertically at the front and two angled toward the back — to support a full set of prosthetic teeth. All-on-6 uses six implants, adding two more in the posterior jaw to distribute bite force across a broader base. All-on-4 is designed for patients with reduced bone density; All-on-6 generally requires more available bone but offers greater stability for high-demand cases.

Who is a candidate for All-on-4 implants?

All-on-4 is designed for patients who have experienced significant bone loss and may not qualify for traditionally placed implants. The angled posterior implants allow the procedure to work with less bone volume than All-on-6 requires. Candidacy is confirmed through a 3D CBCT scan that images the jawbone structure in detail.

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

Neither is universally better — the right option depends on your individual bone anatomy, bite force habits, and clinical needs. All-on-6 distributes chewing load across more anchoring points, which can be advantageous for patients with bruxism or denser diets. All-on-4 is often the appropriate solution for patients with reduced posterior bone density. Your implant dentist determines the correct number of implants after reviewing your 3D scan.

Can you get teeth the same day with All-on-4 or All-on-6?

In many cases, yes. At Bright Smile Dental in Brooklyn, same-day provisional teeth are placed at the time of surgery for qualifying patients, meaning you leave the appointment with a functional smile. Final permanent restorations are fitted after the implants have fully integrated with the bone, typically several months later.

How long do All-on-4 implants last?

Clinical research published in the Clinical Oral Implants Research journal has documented cumulative survival rates above 94% at 10 years for All-on-4 restorations. With proper maintenance and regular dental checkups, full-arch implant restorations are designed to be a long-term permanent solution.

All-on-X is an umbrella term that covers full-arch implant restorations regardless of the number of implants used — All-on-4, All-on-6, or All-on-8. The X represents the variable number of implants chosen based on each patient's bone anatomy and clinical needs, rather than a fixed protocol.

Home Implants All-on-4 vs All-on-6 Implants: Which Full-Arch Option Is Right for You?

All-on-4 vs All-on-6 Implants: Which Full-Arch Option Is Right for You?

If you’ve started researching full-arch dental implants, you’ve likely come across the terms All-on-4 and All-on-6. Both are permanent, fixed solutions for patients who have lost most or all of their teeth in an arch. Both use implants to support a full set of prosthetic teeth. But they’re not the same procedure, and which one is appropriate for you depends on your specific anatomy, bone condition, and clinical goals.

Here’s what you need to know — in plain language.

What Is All-on-4?

All-on-4 uses four implants per arch to support a full set of teeth. Two implants are placed vertically at the front of the jaw; two are placed at an angle (typically 30–45 degrees) toward the back. The angled placement compensates for the fact that the rear of the jaw often has less bone density, allowing the procedure to work for patients who might not qualify for traditionally placed implants.

The technique was pioneered by Dr. Paulo Maló and has been studied extensively. Clinical research published in the Clinical Oral Implants Research journal has demonstrated cumulative survival rates above 94% at 10 years for All-on-4 restorations.

At Bright Smile Dental, we offer All-on-X full-arch implant treatment with same-day provisional teeth in many cases, so patients leave their appointment with a functional smile on the day of surgery.

What Is All-on-6?

All-on-6 follows the same concept but uses six implants per arch instead of four. The two additional implants are typically placed in the posterior region of the jaw. This distributes chewing forces across a broader base.

The ‘X’ in All-on-X refers to this flexibility: the number of implants is chosen based on your individual anatomy and the clinical judgment of your implant dentist, not a one-size-fits-all protocol.

Bright Smile Dental of Brooklyn. All on 4 Vs All on 6

Key Differences: All-on-4 vs All-on-6

Bone requirements: All-on-4 is specifically designed to address reduced bone density through angled implant placement. All-on-6 generally requires a greater amount of healthy bone, but when that bone is present, the additional anchoring points can enhance stability.
Load distribution: More implants spread the bite force across a larger surface area. In patients who put significant stress on their restorations through habits like bruxism (teeth grinding) or in those with particularly dense diets, All-on-6 may offer a more durable foundation.
Candidacy: A patient with significant bone loss may only be a candidate for All-on-4, either as a standalone solution or as a bridge to All-on-6 following bone grafting. A patient with strong posterior bone density and a preference for maximum stability may be better suited to All-on-6.
Cost: All-on-6 carries a higher cost due to additional implants, additional surgical time, and more complex prosthodontic work. The difference varies significantly by practice and case complexity.
Recovery: Both procedures carry similar recovery profiles. Swelling, soreness, and dietary restrictions (soft foods for 4–6 weeks) apply to both.

What About All-on-8?

Some patients with particularly complex bone situations or very large jaw structures are candidates for eight implants per arch. The “All-on-X” umbrella covers all of these configurations — the number is always determined by the clinical picture, not by a default setting.

Who Decides?

Your implant dentist decides, after a proper 3D CBCT scan that images your jawbone structure in detail. No reputable practice should be quoting you All-on-4 vs All-on-6 without that imaging. It’s not a choice between a cheaper and more expensive version of the same thing; it’s a clinical decision based on your bone anatomy.

What patients should be asking isn’t “which one is better” but “which one is right for my jaw.”

What to Expect at Bright Smile Dental

Dr. Vadim performs a full implant assessment before recommending any full-arch treatment. That includes a review of your bone density, gum health, bite, and medical history. If you’re a same-day candidate, we’ll also discuss what that timeline looks like.

You can explore our full-arch implant page here, or browse before-and-after cases from our full mouth reconstruction patients to see what’s possible.

Thinking about All-on-4 or All-on-6? Start with a consultation. We’ll tell you exactly what your jaw supports and what the best path looks like for you.