Key takeaways
- All-on-4 supports a full arch of fixed teeth on four implants, with the back two tilted to make the most of available bone.
- You do leave surgery with teeth, but they are a provisional acrylic bridge. The definitive prosthesis is normally fitted around six months later, on a second trip.
- Long-term studies report high implant survival, with the upper jaw the bigger risk factor and smoking significantly reducing survival.
- All-on-4 versus All-on-6 is the surgeon's biomechanical decision based on your bone, not a menu upgrade.
- Any figures here are externally sourced context. The real figure for your case is the clinic's written, itemised quote.
- This is general information, not medical advice. Your dentist gives the clinical advice.
All-on-4 is the full-arch treatment most heavily advertised to travelling patients, and the one where the gap between the advert and the protocol is widest. The advert says new teeth in a day. The protocol says provisional teeth in a day, and the definitive set months later. This guide covers both halves honestly. For context on how it compares with single dental implants and other options, see our dental treatment abroad guide.
What it is
All-on-4 is a way of replacing all the teeth in one jaw (an arch) with a fixed bridge supported by four implants. The two front implants are placed upright; the two back implants are tilted, which lets them anchor in stronger bone towards the front of the jaw and avoid structures like the sinus. Because the implants share the load of the whole arch, a full set of fixed teeth can be supported without an implant for every missing tooth.
The concept has a substantial evidence base. Its originators published a 242-patient series of immediately loaded All-on-4 treatment in the upper jaw, which remains the founding evidence for the approach, and later independent research has followed patients for well over a decade.
The defining feature for patients is immediate function: a provisional bridge, usually acrylic, is fitted within a day of surgery. You do not go home without teeth. But the provisional is not the finished product, and treating it as one is the most common misunderstanding about All-on-4, so the "How it works" section below deals with it directly.
Am I a candidate
All-on-4 is aimed at people who have lost most or all of the teeth in an arch, or whose remaining teeth are failing and due for extraction. It is also considered where bone loss makes conventional implant-per-gap treatment impractical, since the tilted implants are designed to use the bone you still have.
Candidacy is decided by the clinic's surgeon from a CT scan. Two evidence-backed factors deserve your attention before you even get to the scan:
- Which jaw is involved. A long-term study following 561 All-on-4 patients for up to 17 years found implant survival of 97.4% in the upper jaw versus 98.9% in the lower, with the upper jaw the bigger risk factor because its bone is generally softer.
- Smoking. The same study found smoking significantly reduced implant survival. If you smoke, expect that to shape both the surgeon's recommendation and the conversation about preparing for surgery.
Sometimes the surgeon will recommend six implants rather than four; that option is covered in our All-on-6 guide. The important framing is that this is a biomechanical judgement about your bone quality and distribution, made from your scan. It is not a premium tier to purchase, and a clinic that presents it purely as an upgrade is selling rather than planning.
How it works
Trip one: surgery and same-day provisional teeth. Any failing teeth are extracted, the four implants are placed, and a provisional acrylic bridge is fixed onto them, typically within twenty-four hours. This trip usually involves several appointments across a week or so: assessment and imaging, surgery, then fitting and adjusting the provisional before you fly home.
The healing months. Over the following months the implants integrate with the bone while the provisional bridge spreads the load. You eat carefully, softer foods first, and keep to the clinic's instructions, because the provisional is doing two jobs at once: letting you live normally and protecting the implants while they fuse.
Trip two: the definitive prosthesis, around six months later. This is the headline fact that adverts tend to bury. In the published protocol, the definitive prosthesis is delivered around six months after surgery, replacing the immediate acrylic provisional. A second trip is standard protocol, not a sign anything went wrong. The definitive bridge is made from more durable materials, fitted and balanced against your bite, and is the thing you actually live with for years.
So the honest sentence is: same-day teeth, yes; finished teeth, no. When you compare clinics, ask specifically what the provisional is made of, when the definitive prosthesis is fitted, what it is made of, and whether both trips are inside the quote.
Before booking any of it, the General Dental Council's going-abroad guidance recommends telling your own dentist first and asking what aftercare is provided, what happens if you are unhappy, and who pays for extra travel or remedial work.
Recovery and aftercare
The first days after surgery involve swelling, bruising and a fully soft diet; extractions plus four implants is proper surgery, and your itinerary should include quiet recovery days before the flight home. The clinic will want to review the surgical sites and the fit of the provisional before you leave.
The months with the provisional are part of the treatment, not a waiting room. Aftercare is the clinic's responsibility: it sets the diet progression, hygiene routine and review schedule, and it remains your first contact if anything feels wrong, a loose feeling, a bite change, a chip in the acrylic. We coordinate that follow-up from home with the treating clinic so problems are seen while they are small.
Distance makes follow-up harder, and the record shows it matters. CBS News reporting on medical travel notes patients treated abroad often cannot attend follow-up appointments, which raises complication risk, and a BDA survey reported that the large majority of UK dentists had treated complications in patients who went abroad, with remedial bills frequently in four figures. For a full-arch case, the practical answer is to agree the remote follow-up plan, and the who-pays question, in writing before surgery.
After the definitive prosthesis is fitted, maintenance is lifelong: meticulous hygiene under and around the bridge, plus regular professional reviews.
Risks and how clinics manage them
The long-term evidence for All-on-4 is genuinely strong. The 561-patient study cited above reported implant survival of 97.4% in the upper jaw and 98.9% in the lower over 3 to 17 years. Those are population findings, not personal guarantees, and the same study identifies the risk factors that matter: the upper jaw, and smoking.
The risks worth understanding before you commit:
- Implant loss during healing. A small proportion of implants fail to integrate. In a four-implant arch, a single failure matters more than it would in a six-implant arch, which is part of the biomechanical calculation behind All-on-6.
- Peri-implantitis later. Gum and bone infection around implants affects roughly one in five implant patients generally, and a full-arch bridge makes hygiene genuinely harder. Implants cannot decay, but the tissue around them can fail.
- The stakes of full-arch failure. CBS News reporting on the implant industry notes that a failed full arch can leave too little jawbone for a replacement, which is why the experts quoted there describe full-arch treatment as a last resort. If you still have savable teeth, that question belongs in your consultation.
- Provisional damage. Acrylic provisionals can chip or fracture under careless loading, which is why the diet instructions are not optional.
Good clinics manage these risks with CT-based planning, honest patient selection, a surgeon-made call on four versus six implants, clear provisional-phase instructions, and a defined remote review schedule. Ask each clinic to describe exactly how it handles a provisional problem that surfaces after you are home.
Cost by country
We do not publish internal prices for All-on-4. The externally sourced context is this: full-arch implant treatment sits entirely outside NHS provision, since implants are rarely NHS-funded and are usually private and expensive in the UK. For scale, NHS charges from April 2026 top out at £332.10 for Band 3 work such as dentures, crowns and bridges; private full-arch implant treatment costs many multiples of that figure, which is precisely why patients compare abroad.
A fair comparison prices the whole protocol, not trip one: two trips months apart, flights and accommodation for both, the provisional bridge, the definitive prosthesis and its material, and any extractions. Quotes that look surprisingly low sometimes cover only the surgical visit. Our All-on-4 cost breakdown works through the full budget, and the Turkey destination guide covers the destination most patients compare first.
Whatever you read anywhere, the real figure for your case is the clinic's written, itemised quote, produced after your CT scan is reviewed, listing both trips and both bridges. Nothing should be added without your express agreement.
Choosing a clinic
Start with administrative verification: the clinic's licence, the surgeon's registration, and any accreditations claimed. That is what our verification covers, and it is a check of paperwork, not a guarantee of outcome.
Then ask the All-on-4-specific questions, in writing:
- Who does the surgery, and how does the clinic decide between four and six implants for a case like mine?
- What is the provisional made of, and what happens if it chips or loosens while I am home?
- When exactly is the definitive prosthesis fitted, what is it made of, and is it, with the second trip, inside this quote?
- What does the CT show about my bone, and am I told if my upper jaw raises the risk profile?
- The GDC question set: what aftercare is provided, what happens if I am unhappy, who pays for extra flights, hotels or remedial work?
A coordinator prepares your case file, chases these answers and keeps the quote itemised; the clinic's surgeon makes the clinical decisions. You can see how All-on-4 cases run on our All-on-4 treatment page.
FAQ
Are the same-day teeth my permanent teeth?
No. The same-day bridge is a provisional, usually acrylic, that protects the implants while they heal. The definitive prosthesis is normally fitted around six months after surgery, on a second trip. That second trip is the standard protocol, so budget and plan for it from the start.
All-on-4 or All-on-6: which should I choose?
You do not choose; your surgeon does, from your CT scan. Research comparing the two found statistically identical five-year survival, with six implants used as extra insurance in weaker bone. Treat it as a biomechanical decision, not a price tier. Our All-on-6 guide covers the differences.
How many trips does All-on-4 take?
Two as standard: surgery with the provisional bridge, then the definitive prosthesis around six months later. Cases needing significant preparatory work can involve more. Be sceptical of any plan that claims the treatment is finished in a single visit.
Can I have All-on-4 if I smoke?
Possibly, but the evidence is blunt: smoking significantly reduced implant survival in long-term All-on-4 research. Your surgeon decides after seeing your scan and history, and will likely ask you to stop or cut down around surgery and healing.
What happens if an implant fails?
It depends on when and which implant, which is why this question belongs in your consultation. In some cases a replacement implant is placed after healing. The harder scenario is late full-arch failure with bone loss, which is why maintenance and follow-up are taken so seriously.
Is this medical advice?
No. This guide is general information to help you prepare questions. Your dentist gives the clinical advice, and whether All-on-4 suits you can only be decided from your own scan and history.