Nobel All-on-4
A full arch of fixed teeth on four implants, in eligible patients
All-on-4 is a treatment concept defined by Nobel Biocare in which a full arch of fixed teeth is carried on four implants — two placed vertically at the front, two angled at the back to use the bone that remains without entering the sinus. Angling the rear implants is the idea that makes the concept work, because it often removes the need to graft the back of the jaw. It applies to eligible patients, and eligibility is established by clinical examination and CBCT assessment, not by a price list.
How the treatment runs
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Assessment and planning
CBCT assessment of the remaining bone, plus a plan for the teeth that will sit on the implants.
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Extractions where needed
Any remaining unrestorable teeth in the arch are removed at the surgical visit.
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Implant placement
Four implants are placed — the rear pair angled to engage available bone.
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Provisional restoration
A fixed provisional bridge may be fitted early where the stability measured at placement meets the loading criteria the clinical team works to.
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Healing and final restoration
After integration, the definitive bridge is made and fitted.
Alternatives you should know about
- A full removable denture
- An implant-retained overdenture on fewer implants
- A full arch on six or more implants
- Bone grafting followed by conventional implant placement
The idea in one paragraph
When teeth have been missing from the back of the jaw for a long time, that is usually where bone is most depleted — and in the upper jaw, where the sinus has expanded into the space. Placing implants straight down there often means grafting first. All-on-4 tilts the rear implants instead, so they travel forward through bone that is still present. The effect is a wider spread of support from fewer implants, without rebuilding the jaw first.
What “eligible patients” is doing in that sentence
It is doing a lot of work, and it deserves to be read carefully rather than skipped.
Four implants carrying a full arch means each one takes a substantial share of the load. That is viable when the bone those implants sit in is sound and the measured stability at placement is high. Where the bone is poor, where a patient grinds heavily, or where the anatomy does not allow the rear implants to be angled usefully, more implants — or a different plan entirely — is the appropriate answer.
The same applies to fixed teeth on the day of surgery. It is possible, and it is genuinely what many patients want. But it depends on the stability readings taken during your operation. It cannot honestly be promised in advance, and any arch where the readings fall short is better served by letting the implants heal first.
Cost is a range until someone has seen your jaw
The number of implants is only one part of the price. Extractions, any grafting, the provisional bridge and the material of the definitive bridge all move it, and those are decided by what the CBCT shows.
Send your imaging and a note on what you would like to achieve. The clinical team at Taki Dent can review it and prepare a preliminary outline with a cost range. A final plan and price are confirmed after clinical examination and radiological assessment at the clinic.