What are zygomatic all-on-4 implants and how do they work?
Zygomatic all-on-4 implants are a full-arch solution for the upper jaw when there is too little bone left to hold ordinary dental implants. Instead of relying only on the thin jawbone above the teeth, the surgeon places two very long implants that pass beside or through the maxillary sinus and anchor in the zygoma, the dense cheekbone. Two shorter conventional implants are normally placed at the front of the jaw, and all four are joined by one fixed bridge of replacement teeth. The name comes from the standard all-on-4 concept, with the back implants replaced by zygomatic ones.
This guide explains who needs the technique, how it is done, what the evidence says, the approximate cost in Turkey against the UK, US and Germany, what recovery involves and how to choose a hospital. For the wider picture see our dental treatments in Turkey hub.
Why would the upper jaw need cheekbone anchorage?
After teeth are lost, the jawbone that held them slowly shrinks. In the upper jaw this is made worse by the maxillary sinus, an air-filled space that expands downwards as bone is lost, leaving a thin shelf at the back of the mouth. Long-term denture wear, gum disease, injury, tumour surgery and failed earlier implants all speed this up. Standard implants need a certain height and width of bone to be stable, so people in this position are often told they must have bone grafting first.
The cheekbone does not shrink in the same way, so it offers solid bone that is still there. That is the reason zygomatic implants exist: to anchor in sound bone instead of rebuilding weak bone. They were first developed for patients with large defects in the upper jaw and are now also used for severe bone loss from ordinary tooth loss.
Do zygomatic all-on-4 implants work? What the evidence says
Zygomatic implants have been used for more than two decades, and published studies, including systematic reviews, report implant survival rates of around 95 percent or more over several years in carefully selected patients. That is comparable with conventional implants, but the evidence comes mostly from specialist centres, and long-term follow-up beyond ten years is thinner than for standard implants. Results depend heavily on the surgeon's experience, because the implants are long, the angles are demanding and the nearby structures include the sinus and the eye socket.
What is well supported: the technique can allow a fixed upper set of teeth without large bone grafts, often with fewer operations. What is less certain: how the results compare with grafting in the very long term, and how often sinus problems appear. Ask the surgeon how many zygomatic cases they have done and request their own outcome data rather than general claims.
Zygomatic all-on-4 implants cost in Turkey compared with the UK, US and Germany
The figures below are approximate ranges for one upper arch, not hospital quotes. Zygomatic work is priced above standard all-on-4 because the implants are longer, the surgery is more complex and a CT scan, often a surgical guide and sometimes general anaesthesia are needed.
| Country | Approximate cost range (one arch) |
|---|---|
| Turkey | €6,000 – €14,000 |
| United Kingdom | €14,000 – €30,000 |
| United States | €18,000 – €38,000 |
| Germany | €12,000 – €26,000 |
What changes the price: the implant brand and whether the two front implants are standard or also zygomatic, the material of the bridge (acrylic is cheaper than zirconia), the type of anaesthesia, whether a hospital stay is included and whether a temporary bridge and a final bridge are both quoted. A clear package lists the scans, the surgery, the implants, the temporary teeth, the final bridge, accommodation and transfers. A low headline figure that leaves out the final bridge is not comparable.
Zygomatic implants or bone grafting: which route suits you?
The real choice for many people is between cheekbone anchorage and rebuilding the bone so that standard implants can be used. Grafting through a sinus lift is well proven but adds months of waiting and sometimes two operations; see our guide to sinus lifting. Zygomatic implants avoid grafting but need a more experienced surgeon.
| Option | Best suited to | Typical limits |
|---|---|---|
| Zygomatic all-on-4 | Severe upper-jaw bone loss, wish for fixed teeth without grafts | Technically demanding; fewer surgeons trained; sinus issues possible |
| Standard all-on-4 or all-on-6 with sinus lift | Moderate bone loss where grafting is acceptable | Longer treatment time; graft may not take |
| Removable implant-supported denture | Limited budget or very little bone | Not fixed; needs cleaning out of the mouth |
Our guide to all-on-6 dental implants explains the conventional version, and the variant with six implants is covered in zygomatic all-on-6 implants.
Who is a good candidate, and who is not?
Good candidates are adults with an edentulous or failing upper jaw and severe bone loss, who have been told grafting is needed or has failed, and who are in reasonable general health. You are less suited if you have an active sinus infection, have had radiotherapy to the face and jaw (which needs specialist planning), smoke heavily and cannot stop, have uncontrolled diabetes, take bisphosphonate or similar bone medicines, or have untreated gum disease. A CT scan decides whether the cheekbone is sufficient and how the implants can run. Some people with moderate bone loss may need only a simpler method, and an honest surgeon will say so.
How is the zygomatic all-on-4 procedure done step by step?
The first step is a consultation with a CT scan of the jaws and sinuses; planning software shows the route of each implant. Surgery is usually done under general anaesthesia or deep sedation in a hospital, takes about two to four hours for one arch, and begins with removal of any remaining failing teeth. The surgeon exposes the bone, creates a path from the upper jaw towards the cheekbone, places the long implants, then adds the two front implants. A temporary fixed bridge is often fitted within a day or two if the implants are stable enough, called immediate loading.
The temporary bridge is worn while the bone fuses with the implants, usually three to six months. A final bridge is then made and fitted, generally in zirconia or acrylic on a metal frame. Some clinics do this in two trips; others offer a longer single stay.
How long is zygomatic all-on-4 implants recovery?
Expect swelling and bruising of the cheeks for the first week, some oozing from the mouth or nose, and discomfort that responds to prescribed painkillers. A soft diet is advised for several weeks. Most people are comfortable enough to travel home after about five to seven days, once the surgeon has checked the wounds and the temporary teeth.
- Days 1-3: peak swelling, ice packs, antibiotics and rinses, soft or liquid food.
- Week 1: stitches checked, swelling falling, gentle cleaning of the bridge.
- Weeks 2-6: return to normal activity, still a soft diet.
- Months 3-6: bone fuses; return for the final bridge.
Your recovery stays are part of the plan, so ask how many nights the quote covers and what happens if you need a check after you leave.
What can go wrong with zygomatic implants?
As with any major oral surgery, risks include infection, bleeding, swelling that lasts longer than expected and implant failure. The ones specific to this technique are sinusitis, because the implant passes near or through the sinus; an opening between the sinus and the mouth in some cases; and, rarely, injury to nearby structures such as the eye socket. Nerve irritation can cause temporary numbness of the cheek or lip. Rates vary between studies and surgeons, which is why experience matters. For general information on implant risks see the NHS and the US FDA patient information on dental implants. Report fever, increasing pain, persistent nasal discharge or a loose bridge at once.
What results can I expect from zygomatic all-on-4 implants?
Before-and-after photos usually show a fixed set of upper teeth replacing a denture or failing teeth, with the bridge shaped to support the lip and smile. They do not show the long-term maintenance: you must clean around and under the bridge daily, attend check-ups, and the bridge may need repair or replacement after some years. The implants themselves are designed to last many years, but no clinic can guarantee a fixed lifespan. Ask to see cases with a similar bone-loss pattern to yours, not only the most flattering ones.
How do I choose a surgeon and hospital, and what are the red flags?
Look for an oral and maxillofacial surgeon or an implant specialist who regularly performs zygomatic implant surgery, in a licensed hospital with an anaesthetist and the ability to deal with complications. Red flags include a quote without a CT scan, promises that treatment is risk-free or guaranteed, a fixed price given before they have seen your scan, pressure to pay quickly, no named surgeon and no plan for aftercare. Read how our process works, then send your scan through our free quote page for a written plan.
Useful questions to ask the clinic:
- How many zygomatic implant cases has the named surgeon completed, and over what period?
- Are the two front implants conventional or also zygomatic?
- Which implant brand and bridge material are quoted, and what warranty applies?
- Is general anaesthesia and a hospital stay included?
- How many nights must I stay, and when is the second trip for the final bridge?
- What happens if a complication appears after I return home?
Hospitals with Dental Treatments in Turkey
Frequently asked questions
They are a full-arch upper-jaw treatment in which two long implants anchor in the cheekbone and two shorter implants sit at the front, all carrying one fixed bridge. They are used when the upper jaw has too little bone for standard implants.
Studies report implant survival of around 95 percent or higher in selected patients over several years, similar to conventional implants. Results depend strongly on the surgeon's experience, and long-term data beyond ten years is more limited.
Approximate ranges are €6,000 to €14,000 per arch in Turkey, against roughly €14,000 to €30,000 in the UK. The price depends on the implants, bridge material and anaesthesia, and the hospital confirms it in a written quote.
A fixed upper set of teeth replaces a denture or failing teeth, shaped to support the lip. Photos do not show the daily cleaning and maintenance involved, so ask for cases with similar bone loss to yours.
Swelling and bruising peak in the first week, and a soft diet is advised for several weeks. Most people travel home after five to seven days, while the bone fuses with the implants over three to six months.
Surgery is done under general anaesthesia or deep sedation. Afterwards there is soreness and swelling that is usually controlled with prescribed painkillers and eases over the first week or two.
The implants are designed to last many years with good hygiene and regular check-ups, but no clinic can guarantee a fixed lifespan. The bridge itself may need repair or replacement sooner.
They are an established technique, but risks include infection, sinusitis and, rarely, injury to nearby structures. Safety depends greatly on the surgeon's training and planning with a CT scan, so ask about their experience.
Neither is right for everyone. A sinus lift rebuilds bone for standard implants but takes longer, while zygomatic implants avoid grafting but need a more specialised surgeon. A CT scan guides the choice.
Most plans need about five to seven nights for the surgery and first checks, then a second visit of several days for the final bridge a few months later. Confirm this in the written quote.