Quick answer
The short answer
All-on-4 and All-on-6 both give you a fixed full arch of teeth. All-on-4 uses four implants – two of them angled – so it needs less bone and often avoids grafting. All-on-6 uses six implants, spreading the bite load for extra stability, but needs more bone. At Dent KM, All-on-4 starts from £2,635 and All-on-6 from £3,470 per arch.
Side-by-side comparison
| All-on-4 | All-on-6 | |
|---|---|---|
| Implants per arch | 4 | 6 |
| Bone required | Less – rear implants are tilted | More bone volume needed |
| Bone graft | Often avoided | Sometimes needed |
| Load per implant | Higher | Lower |
| Stability | Very good | Maximum |
| Price at Dent KM (per arch) | from £2,635 | from £3,470 |
| Temporary teeth | Same week | Same week |
| Final teeth | ~3 months | ~3 months |
When All-on-4 is the better choice
All-on-4 is often recommended when:
- You have lost bone after years without teeth or wearing dentures
- You want to avoid bone grafting or a sinus lift
- You want fixed teeth with the simplest surgery
When All-on-6 is the better choice
All-on-6 is often recommended when:
- You have good bone volume
- You have a strong bite or grind your teeth
- You want the extra support of more implants
How the decision is made
You don't have to choose alone. The dentist decides from your X-ray or 3D scan, considering bone volume, bite and your expectations. Send your X-ray or photos and we'll recommend one, with a fixed written price, free of charge.