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

**All-on-4**: Four implants per arch — two straight anterior implants and two posterior implants angled at 30-45°. The angled posterior implants engage existing bone and avoid the need for bone grafting in most patients with moderate bone loss.

Developed by Nobel Biocare, this is the most studied full-arch protocol with 20+ years of clinical data. **All-on-6**: Six implants per arch — typically two straight anterior, two straight mid-arch, and two angled posterior implants. The two additional implants create more support points, distributing biting force across a wider area.

For detailed pricing on each, see our All-on-4 cost guide and implant pricing overview.

**Load distribution**: All-on-6 spreads biting force across 6 points instead of 4, reducing stress per implant by approximately 30%. This is most significant in the upper jaw, where bone is naturally softer. **Bone requirements**: All-on-4 was specifically designed for patients with moderate bone loss — the angled implants bypass areas of resorption.

All-on-6 requires slightly more available bone in the mid-arch region for the additional implants. **Success rates**: Both achieve 95-98% implant survival at 10 years in published literature.

All-on-6 may have a marginal advantage in the upper jaw for patients with bruxism (grinding), but the clinical difference is small. **Prosthesis options**: Both support the same prosthesis types — acrylic, porcelain-fused-to-metal, or full zirconia bridges.

| | All-on-4 (per arch) | All-on-6 (per arch) | |---|---|---| | **Turkey/Istanbul** | €3,500–€6,000 | €4,500–€7,500 | | **UK** | £12,000–€20,000 | £15,000–€25,000 | | **USA** | $20,000–€30,000 | $25,000–€35,000 | | **Germany** | €12,000–€18,000 | €15,000–€22,000 |

The price difference between All-on-4 and All-on-6 in Istanbul is typically €1,000–€1,500 per arch — two additional implants plus slightly longer surgery time. For patients considering treatment in Istanbul, both options offer substantial savings compared to Western pricing.

**Choose All-on-4 if**: You have moderate bone loss and want to avoid grafting. You want the most cost-effective full-arch solution. Your jawbone is healthy enough for 4-point support. You don't have severe bruxism. **Choose All-on-6 if**: You have a larger jaw arch requiring wider prosthesis support. You grind your teeth (bruxism) — 6 implants handle lateral forces better.

Your upper jaw has variable bone density and you want maximum insurance. Your budget allows the additional €1,000–€1,500 per arch. **Important**: Your implantologist should recommend based on CBCT scan analysis, not marketing preference. Get a personalized assessment from experienced implantologists who offer both options.