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The comparison between All-on-4 and All-on-6 is one of the most frequently asked questions in implant dentistry — and one of the most frequently oversimplified. The honest answer isn’t that one is better than the other. Both are excellent protocols when matched to the right patient. The relevant question is which one fits your specific anatomy, bite, and clinical needs.
This guide answers that question properly — without the marketing gloss that tends to make All-on-6 sound like a premium upgrade and All-on-4 sound like the budget option.
The Fundamental Difference
All-on-4 uses four implants per arch: two vertical anteriors and two posteriors angled at approximately 45 degrees. The angulation is deliberate — it engages denser anterior bone, increases the anteroposterior spread of the implant platform, and avoids the posterior regions where bone is most commonly deficient. This design allows full-arch rehabilitation in cases of moderate bone loss without bone grafting.
All-on-6 places two additional implants, typically in the mid-arch region, creating six anchor points. The distribution of occlusal (bite) load is spread across more fixtures, which reduces the stress on any individual implant and increases the stability of the prosthesis under heavy functional loads.
When All-on-6 Offers a Genuine Advantage
All-on-6 makes the most clinical sense in specific scenarios:
Patients with heavy occlusal forces: Bruxists (tooth grinders) and patients with a powerful bite generate significantly higher forces than average. Distributing those forces across six implants rather than four reduces per-implant stress — which matters for long-term prosthesis and implant stability.
Broader arches: A wider arch creates more distance between the anterior and posterior implant positions. Additional mid-arch implants reduce the cantilever length of the prosthesis, improving load distribution and reducing the risk of prosthetic complications.
Patients prioritising redundancy: With six implants supporting the arch, a single implant failure is less likely to compromise prosthesis stability while remedial action is taken. This is a genuine clinical argument for All-on-6, particularly for patients who are travelling internationally for treatment and have limited access to follow-up care nearby.
Higher bone density: When bone quality and volume are excellent throughout the arch, placing six implants is straightforward and the additional anchorage contributes meaningfully to long-term outcomes.
When All-on-4 Is Equally Appropriate — or Better
All-on-4 is not a compromise. It was developed specifically to maximise outcomes in challenging bone conditions — and it achieves this through the engineering logic of its design, not by cutting corners.
For patients with moderate bone resorption, the angled posterior implants in All-on-4 engage the available bone more effectively than vertical implants in poor posterior positions. Adding two more implants in a region of deficient bone doesn’t necessarily improve outcomes — it may simply add more points of potential failure if the bone can’t support them adequately.
All-on-4 is also the more appropriate choice when cost is a genuine constraint. Adding two implants increases surgical time, implant costs, and total treatment cost. If the clinical case is well-suited to four implants, recommending six is not in the patient’s interest.
Bone Loss and Both Protocols
Both All-on-4 and All-on-6 can be performed in patients with bone loss. The distinction is not which protocol handles bone loss better — it’s where the bone loss is and how much remains at the planned implant sites. A CBCT 3D scan provides the three-dimensional bone map needed to make this assessment accurately. Patients with severe maxillary bone loss that neither protocol can address may be candidates for zygomatic or pterygoid implants.
Cost, Recovery, and Same-Day Loading
All-on-6 costs more than All-on-4 — two additional implants, more surgical time, and in some cases a more complex prosthetic design. The difference at Dazzle Dental Clinic is typically in the range of ₹1,00,000 to ₹1,50,000 per arch depending on the case.
Recovery timelines are broadly similar for both protocols. Same-day loading — a provisional prosthesis placed on surgery day — is achievable with both. Osseointegration takes 3–6 months for both. The final prosthesis is fitted once integration is confirmed for both.
For the detailed cost breakdown of each protocol, see our All-on-4 and All-on-6 cost guide.
How the Decision Is Made at Dazzle
Our implantology team reviews each patient’s CBCT scan, bite analysis, and clinical examination together before recommending a protocol. We explain our reasoning. If All-on-4 is clinically appropriate, we recommend All-on-4. If All-on-6 offers a meaningful advantage for your specific situation, we explain why. The decision is yours, made with accurate information — not a clinic preference.
Patients travelling from the UK, GCC, USA, and Australia for treatment find that both protocols at Dazzle represent significant savings versus their home markets, often 50–70%. We offer remote consultation and can review CBCT scans sent in advance to give you a preliminary protocol recommendation before you travel.
FAQs
Q1: Is All-on-6 always better than All-on-4?
No. All-on-6 is better in specific cases — heavy bite forces, wider arches, patients wanting implant redundancy. For patients where All-on-4 is clinically appropriate, the additional implants don’t meaningfully improve the outcome. The right answer depends on your anatomy.
Q2: What happens if I choose All-on-4 and one implant fails?
In most cases, the remaining three implants maintain prosthesis stability while the failed implant is assessed. Replacement is often possible. This is one honest argument for All-on-6: additional implants provide redundancy. We discuss this as part of informed consent for both protocols.
Q3: Can All-on-6 be done if I have bone loss?
It depends on where the bone loss is. Adding two implants in sites with insufficient bone is counterproductive. A CBCT scan determines whether six implants can be placed with adequate primary stability. In cases of severe bone loss, neither protocol may apply without bone augmentation or zygomatic alternatives.
Q4: How much does All-on-6 cost compared to All-on-4 at Dazzle?
All-on-6 is typically ₹1,00,000–1,50,000 more per arch than All-on-4 at Dazzle Dental Clinic, depending on implant system and prosthesis material. A precise quote is provided after your CBCT review and consultation.
