All-on-4 vs All-on-6Which Protocol Is Better?
- Choosing between All-on-4 and All-on-6 depends on your jaw anatomy, bone quality, opposing dentition, and treatment goals.
What's the Difference Between All-on-4 and All-on-6?
All-on-4 uses four implants per arch and suits most edentulous patients with lower bone volume, while All-on-6 uses six implants for enhanced stability in larger arches or against natural opposing teeth. Both allow immediate loading; All-on-4 carries 30-plus years of long-term evidence versus All-on-6's 15-plus years.
| Feature | All-on-4 | All-on-6 |
|---|---|---|
| Implants per arch | 4 | 6 |
| Cost per arch (SD) | $3,050 | $3,600 |
| Cost per arch (Canada) | CAD $25,000-$35,000 | CAD $28,000-$38,000 |
| Minimum bone requirement | Lower (tilted posteriors) | Moderate |
| Cantilever extension | Longer | Shorter (biomechanical advantage) |
| Force distribution | 4 points | 6 points |
| Prosthesis support | Adequate for most | Enhanced stability |
| Immediate loading | Yes | Yes |
| Long-term evidence | 30+ years | 15+ years |
| Best for | Most edentulous patients | Larger arches, opposing natural teeth |
Questions about this procedure?
When Does Dr. Sethi Recommend Each Protocol?
Dr. Sethi recommends All-on-6 when the arch is large, opposing teeth are strong, or bone allows comfortable placement of six implants, and All-on-4 for most other patients as the most documented protocol in implant dentistry. In his words: "All-on-4 remains the gold standard for most patients, it's the most documented protocol in implant dentistry with 30+ years of data. Both deliver excellent outcomes."
Ready to discuss your options?
Which Protocol Should I Choose?
Choose All-on-4 if budget is a priority, bone is limited, or its longer evidence base matters to you; choose All-on-6 if you want maximum stability, have a larger arch, or oppose natural teeth.
- Choose All-on-4 if: Budget is a priority, bone is limited, and the All-on-4 evidence base matters to you
- Choose All-on-6 if: You want maximum stability, have a larger arch, or oppose natural teeth
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- Remote file review before travel
- Evidence-led treatment checkpoints
Trip coordinated with care timeline
- Remote file review before travel
- Evidence-led treatment checkpoints
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Frequently Asked Questions
Is All-on-6 More Expensive Than All-on-4?
Yes, both in Canada and at Stunning Dentistry, All-on-6 costs more per arch than All-on-4 because it uses two additional implants, though both remain far below Canadian private pricing.
Which Protocol Has More Long-Term Evidence?
All-on-4 has the longer track record, with 30-plus years of documented outcomes versus All-on-6's 15-plus years.
How Do I Find Out Which Protocol Is Right for Me?
Upload your X-rays and book a free video consult. You'll receive a detailed treatment plan with CAD pricing within 12 hours, based on your specific jaw anatomy and bone quality.
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This tool will help you understand potential structural and aesthetic changes before finalizing treatment decisions.
