Implant Treatment

All-on-4 Dental Implants in Marylebone

A fixed full arch of teeth on four implants, planned from a CBCT scan at UNTIL Marylebone, 1 Orchard Street, with fixed provisional teeth on the day wherever the implants are stable enough.

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  • CBCT scan on site
  • GDC-registered dentists
  • Written plan before you commit
Dentist wearing magnifying loupes examining a reclined patient

The short answer

What All-on-4 dental implants are

All-on-4 is a way of fixing a whole arch of teeth on four implants, with the two back implants tilted to reach the strongest bone. It often avoids a bone graft, and the bridge is fixed in place. At UNTIL Marylebone every All-on-4 plan starts from a CBCT scan, which decides whether four implants are enough or you need more.

All-on-4 dental implants: what to expect

All-on-4 or All-on-6?

Six implants spread the load over more points and give the bridge more support if one implant has a problem, at a higher cost and usually with more bone needed. Four implants need less bone and less surgery. Neither is better in general: the scan decides which your jaw can carry, and where the bone is soft or the bite is heavy, the plan moves to five or six.

Both are fixed full arches, covered in more detail on the full arch implants page, and both are priced per arch on the dental implant cost page.

All-on-4 vs dentures

A full denture rests on the gum and is held by suction. It costs far less and needs no surgery, but it can move when you eat, an upper covers the palate, and it does nothing to stop the jawbone shrinking. All-on-4 is screwed to implants in the bone, so it does not move and leaves the palate clear.

Between the two sits an implant retained denture, which clips onto two or more implants and still comes out to clean. If your denture is already loose, the loose dentures page explains why.

All-on-4 dental implants near you in Marylebone

All-on-4 treatment is arranged at UNTIL Marylebone, 1 Orchard Street W1H 6HJ, beside Selfridges, about 7 minutes on foot from Bond Street station and 6 from Marble Arch, according to TfL. Directions, opening hours and the nearby areas people travel from are on the Marylebone location page.

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Areas treated

Why choose All-on-4

  • A whole arch of fixed teeth on four implants rather than one per tooth
  • Tilting the back implants often reaches good bone without a graft or a sinus lift
  • Fixed provisional teeth on the day of surgery, where the implants are stable enough
  • No plate over the palate and no adhesive, because the bridge is screwed in place
  • The implants load the jawbone, which a denture resting on the gum does not

Patient journey

What to expect from All-on-4 treatment

Consultation & preparation

Bring your full medical history and a list of medicines, particularly blood thinners, bisphosphonates or denosumab, and anything you take for diabetes. Arrange a few clear days afterwards and someone to take you home, as full arch surgery takes longer than a single implant. Stock the fridge with soft food before the day.

During treatment

Aftercare

Expect swelling and bruising for several days. Stay on a soft diet for as long as you are told to, which protects the provisional bridge as well as the healing implants. Clean under the bridge as shown, avoid smoking entirely, and keep every review, because the final bridge is only made once healing is confirmed.

All-on-4 dental implants cost in London

Marylebone Dental Implants prices All-on-4 per arch after your CBCT scan. For comparison, W1 practices that publish fees listed All-on-4 from £13,500 and £15,000 per arch on 29 September 2026, and £18,000 for a lower arch on 4 to 5 implants.

Implant consultation and CBCT assessment Every All-on-4 case is scanned and planned before any price is quoted.
On enquiry
All-on-4, four implants and provisional bridge Per arch. Extractions, where needed, are quoted with it.
On enquiry
Final fixed bridge Priced by material once the design is agreed.
On enquiry
Maintenance reviews The bridge is removed, cleaned and checked at agreed intervals.
On enquiry

All-on-4 questions,
answered

How much do All-on-4 dental implants cost in London?

Published W1 prices started at £13,500 per arch at one Harley Street practice and £15,000 at another on 29 September 2026, and one Portland Place practice listed £18,000 for a lower arch on 4 to 5 implants. Marylebone Dental Implants prices All-on-4 per arch after your CBCT scan, itemised by stage, including extractions and the final bridge.

Are the teeth fitted on the day the final teeth?

No. The provisional bridge fitted on the day is lighter and designed to protect the implants while the bone heals. The final bridge is made once healing is complete, in a stronger material, and is the one meant to last. Marylebone Dental Implants includes both stages in the written plan, so neither comes as a surprise.

Does All-on-4 avoid a bone graft?

Often, because tilting the back implants lets them reach denser bone at the front of the jaw and stay clear of the sinus or the nerve. It is not guaranteed: some jaws need a graft or more implants even so. Marylebone Dental Implants arranges a CBCT scan at UNTIL Marylebone to measure the bone before any plan is made.

How long do All-on-4 implants last?

Well cared for, the implants can last for decades, and the Association of Dental Implantology cites 97.1% five-year survival for implant-supported prostheses. The bridge on top wears and may need repair or replacement in time. Marylebone Dental Implants builds hygiene and review appointments into the plan, because cleaning under the bridge decides most of the outcome.

Who is All-on-4 suitable for?

Most people who choose All-on-4 are losing or have lost most of the teeth in one jaw, often through gum disease, and want fixed teeth rather than a denture. It needs enough bone at the front of the jaw and good general health. Marylebone Dental Implants confirms suitability from an examination and a CBCT scan at UNTIL Marylebone.

How do you clean All-on-4 dental implants?

Under the bridge rather than around each tooth. The bridge sits slightly clear of the gum so a small brush or a water flosser can pass beneath it, every day. It is also unscrewed at reviews so the implants can be cleaned and checked properly. Marylebone Dental Implants builds those reviews into the plan from the start.

Request a dental implant assessment in Marylebone,
and UNTIL Health Concierge arranges it at Orchard Street.

Marylebone Dental Implants • UNTIL, 1 Orchard Street, London W1H 6HJ

Request an assessment

The UNTIL Health Concierge team says it will be in touch within 24 hours of your enquiry.