COMPARISONS
All-on-4 vs All-on-6: when to refer each for full-arch implant cases
All-on-4 uses four implants with two angled distally to avoid the sinus and nerve, making it the faster, lower-cost full-arch path for atrophic posterior bone. All-on-6 distributes load across six implants, reducing cantilever and improving long-term prosthetic stability when...
THE BOTTOM LINE
All-on-4 uses four implants with two angled distally to avoid the sinus and nerve, making it the faster, lower-cost full-arch path for atrophic posterior bone. All-on-6 distributes load across six implants, reducing cantilever and improving long-term prosthetic stability when bone volume allows. Pick All-on-4 when bone is compromised. Pick All-on-6 when the patient has adequate posterior bone and parafunction risk.
SIDE BY SIDE
All-on-4 vs All-on-6
| Consideration | All-on-4 | All-on-6 |
|---|---|---|
| Implants per arch | 4 (2 anterior axial, 2 posterior tilted 30-45 degrees) | 6 (4 anterior axial, 2 posterior, often axial) |
| Bone grafting often required | false | true |
| Typical chair time, surgical phase | 2-3 hours per arch | 3-4 hours per arch |
| Cantilever length on final prosthesis | Longer (10-12 mm typical) | Shorter (6-8 mm typical) |
| Suited to atrophic posterior maxilla or mandible | true | false |
| Load distribution under heavy occlusion | Concentrated on tilted distals | Distributed across six points |
| Failure tolerance (one implant fails) | Arch may need full revision | Often restorable on remaining 5 |
| Patient cost (relative) | Lower | Higher (more implants, more components) |
| Suitable for bruxers / heavy parafunction | false | true |
| Immediate-load protocol candidate | true | Case-dependent |
THE TRADE-OFFS
Where each one earns its place
<p>The decision is driven by bone volume, occlusal load, and patient risk profile, not by a universal preference. Both protocols have decades of clinical data behind them; the question is which one fits the case on your chair.</p><p>Pick All-on-4 when posterior bone is atrophic and the patient wants to avoid sinus lift or block grafting. Choose All-on-4 when immediate load is the priority and the patient profile supports it (non-bruxer, moderate occlusal force, compliant healing). Go with All-on-6 when the patient is a known bruxer or has heavy parafunctional load, since the distributed implant count reduces cantilever stress on the distal tilted implants. Opt for All-on-6 when posterior bone is adequate and the patient values redundancy: if one implant fails at year seven, five remaining implants can often carry the prosthesis through revision.</p><p>Both protocols ship through the same Dani Dental digital workflow: CBCT-driven planning, milled surgical guide, provisional within the immediate-load window where indicated, and final hybrid or zirconia prosthesis on the agreed timeline.</p>
<p>Dani Dental fabricates both All-on-4 and All-on-6 prosthetics through one digital workflow out of the Tempe lab. Surgical guide, custom abutments, provisional, and final prosthesis are produced under one roof with one technician owning the case file end-to-end; the referring clinician gets that technician's direct line, not a generic lab front desk. Our internal remake rate on full-arch hybrid cases tracked under 2.5% across the last twelve months.</p><p>Honest read: if your case planning already lives inside a national-network workflow with a bundled surgical-restorative contract, that integration may be worth more to your practice than swapping labs. Dani Dental fits best when you want a named technician on the case, a published turnaround you can quote to the patient, and pricing ranges shared up front (full-arch hybrid prosthetics quoted in the $4,200-$6,800 per arch range depending on framework material and finish, before implant components).</p>
IN PRACTICE
How it plays out on real cases
Worked case examples for this comparison are coming. Send us your case and we will show you exactly how each option would play out.
GO DEEPER
Read the full guide on all procedures
This comparison sits inside a larger procedure. The pillar page covers materials, turnaround, and how we build it to your spec.
REQUEST A DOCTOR KIT
Not sure which way to build it? Send the case.
Send us the case and a named technician will tell you which option they would choose and why. First three cases ship on us, with pre-paid shipping and no contract.