Most people who search for zygomatic implants have already been told something discouraging: that there is not enough bone in the upper jaw for conventional implants, that a large bone graft would be needed first, or that a removable denture is the only remaining option. Zygomatic implants exist for exactly that situation. They bypass the resorbed jawbone entirely and anchor in the cheekbone, which stays dense throughout life.
What is a zygomatic implant?
A zygomatic implant is an extra-long titanium implant, typically between 30 and 52.5 millimeters, that is placed through or alongside the upper jaw and anchored in the zygomatic bone. Conventional dental implants are 8 to 14 millimeters long and rely on the alveolar ridge, the part of the jaw that holds the tooth roots. That ridge shrinks after tooth loss, and in the back of the upper jaw the maxillary sinus expands downward into the space that is left behind. After years without teeth, there can be only two or three millimeters of usable bone.
The technique was developed by the Swedish surgeon Per-Ingvar Brånemark in the late 1980s, originally for patients who had lost part of the maxilla to tumor surgery or trauma. It has since become an established option for severe maxillary atrophy, with more than three decades of documented follow-up.
What is the zygoma?
The zygoma is the cheekbone, the arched bone that forms the prominence below and to the side of the eye socket. Anatomically it is called the zygomatic bone or os zygomaticum, and it connects the maxilla to the temporal bone and the frontal bone.
Two properties make it useful as an anchor. It is thick, dense cortical bone rather than the spongy bone found in the jaw. And unlike the alveolar ridge, it does not resorb when teeth are lost, because its shape is determined by the skull rather than by the presence of tooth roots. A patient with almost no upper jawbone left still has a fully intact zygoma.
Who is a candidate for zygomatic implants?
Zygomatic implants are considered when the upper jaw cannot support conventional implants and the patient wants fixed teeth rather than a removable denture. Typical situations include severe resorption of the upper jaw after long-term denture wear, failed previous bone grafts or sinus lifts, extensive bone loss following advanced periodontitis, maxillary defects after tumor resection or trauma, and cases where the patient cannot or does not want to undergo grafting and wait nine to twelve months for healing.
There are also clear reasons not to proceed. Untreated sinus disease has to be resolved first. Active infection, uncontrolled diabetes, heavy smoking, certain bone medications such as intravenous bisphosphonates or denosumab, and prior high-dose radiation to the midface all require careful evaluation and may rule out surgery. A three-dimensional CT or cone beam scan is mandatory before any decision is made, and so is an assessment of the sinuses.
Zygomatic implants compared with the alternatives
| Approach | Bone graft needed | Time to fixed teeth | Best suited for |
|---|---|---|---|
| Conventional implants | No, if bone is adequate | 3–6 months | Sufficient ridge height and width |
| Sinus lift plus implants | Yes | 9–12 months | Moderate bone loss in the posterior maxilla |
| Block or iliac crest graft | Yes, second surgical site | 12–18 months | Extensive loss, patient accepts staged treatment |
| Zygomatic implants | No | 24–72 hours in most protocols | Severe atrophy, failed grafts, patient wants a single surgery |
| Removable denture | No | Weeks | Patient declines surgery or is not medically fit |
The decisive advantage is not only the avoided graft. It is the timeline. Grafting the upper jaw and then implanting means a year or more with a removable provisional. Zygomatic implants are usually loaded immediately, so a fixed provisional bridge is fitted within one to three days of surgery. For an in-depth look at grafting itself, see the article on augmentation.
Can zygomatic implants be used in the lower jaw?
No. This is one of the most common questions and the answer is anatomical: the zygoma is part of the midface and sits above the upper jaw. There is no equivalent dense bone within reach of the mandible.
Severe lower jaw atrophy is handled differently. Depending on the case, the options are short or narrow-diameter implants, tilted implants placed between the mental foramina, bone grafting, nerve lateralization in selected cases, or a subperiosteal framework. Because the lower jaw usually retains more bone height than the upper jaw and its bone is denser, conventional implants remain feasible far longer there. If you have been told you need zygomatic implants in the lower jaw, ask for clarification — the term is sometimes used loosely for any long or tilted implant.
How the surgery works
Zygomatic implant surgery is performed by an oral and maxillofacial surgeon or a specialist implantologist, usually under general anesthesia or deep sedation, and takes two to four hours depending on how many implants are placed.
Planning begins with a cone beam CT scan that is used to model the trajectory of each implant relative to the sinus, the orbital floor and the infratemporal fossa. During surgery, the gum is opened, the path is prepared with progressively larger drills, and the implant is guided from the region of the former premolar or molar up into the body of the zygoma. Several techniques exist: the classic intrasinus route passes through the sinus, while the extramaxillary or extrasinus approach runs along the outer surface of the jaw, which can reduce sinus complications and improve the emergence position of the crown.
A common configuration combines two zygomatic implants in the back with two conventional implants in the front of the upper jaw, where some bone usually remains. When the front is also resorbed, four zygomatic implants are placed — the so-called quad zygoma protocol. If primary stability is sufficient, a fixed provisional bridge is attached within 24 to 72 hours, and the definitive bridge follows after three to six months of healing.
Recovery and what to expect
Swelling of the cheek and around the eye is normal and peaks on the second or third day. Bruising can extend to the lower eyelid. Most patients describe the discomfort as significant but manageable, comparable to extensive sinus surgery, and control it with prescribed medication for the first three to five days. Antibiotics and a decongestant or nasal spray are commonly prescribed because the sinus is involved.
You will be asked to avoid nose blowing, straws, air travel and heavy lifting for two weeks, to sleep with the head elevated, and to keep to a soft diet for six to eight weeks even though the provisional bridge is fixed. Sutures come out after one to two weeks. Most people return to desk work within a week. Smoking is the single largest modifiable risk factor for failure and should stop before surgery, not after.
Success rates and risks
Systematic reviews consistently report implant survival above 95 percent at follow-up periods of five to twelve years, which is comparable to conventional implants in good bone and considerably better than heavily grafted sites. That figure refers to the implant remaining in function, not to a complication-free course.
The most frequent complication is sinusitis, reported in roughly 2 to 5 percent of cases and more often with the intrasinus technique. It is usually treatable with medication, occasionally requiring endoscopic sinus surgery. Other recognized risks include soft tissue inflammation around the implant head, oroantral communication, temporary numbness of the cheek, and — rarely, and largely avoidable with proper planning and imaging — penetration of the orbital floor or the infratemporal fossa. Long-term maintenance matters as much as the surgery: the crestal soft tissue around a zygomatic implant is harder to clean, so regular professional hygiene visits and vigilance for peri-implantitis are part of the treatment, not an optional extra.
Zygomatic implants and All-on-4
The two concepts are related but not the same. All-on-4 describes a full fixed bridge supported by four implants, two of them tilted to make use of available bone. It assumes there is enough bone in the front of the jaw to place those four implants.
When the upper jaw is too resorbed even for that, the same prosthetic principle is kept and the posterior anchors are replaced by zygomatic implants — sometimes called a zygomatic All-on-4 or hybrid protocol. The patient experience is similar: one surgery, fixed teeth within days, a definitive bridge a few months later. The surgical demand is considerably higher, which is why case selection and surgeon experience matter more here than in almost any other implant procedure. Patients facing a fully edentulous jaw should have both options explained side by side.
How much do zygomatic implants cost?
In the United States, a full upper arch restored on zygomatic implants typically ranges from about $25,000 to $50,000, including surgery, anesthesia, the provisional bridge and the definitive prosthesis. A quad zygoma case sits at the upper end of that range. Individual implants are sometimes quoted at $4,000 to $7,000 each, but a per-implant figure is misleading because the prosthesis and the surgical facility make up a large share of the total.
Dental insurance rarely covers the procedure in full; medical insurance sometimes contributes when the bone loss results from tumor surgery, trauma or a congenital defect. Ask for a written treatment plan that separates surgical fees, anesthesia, imaging, provisional and definitive prosthetics, and follow-up care. Any figure quoted before a CT scan and a clinical examination is an estimate, not a price.
How to choose a surgeon
Zygomatic implant placement is a low-volume, high-skill procedure. Ask how many cases the surgeon performs per year, which technique they use and why, whether the planning is done on a cone beam CT with digital simulation, what happens if primary stability is insufficient for immediate loading, who manages a sinus complication if one occurs, and what the follow-up schedule looks like. A surgeon who answers all of these plainly, shows you your own scan and describes the alternatives — including the option of doing nothing for now — is giving you the information you need. For background on the specialty, see oral and maxillofacial surgery.
Frequently asked questions
What are zygomatic implants?
They are extra-long dental implants, 30 to 52.5 millimeters, that anchor in the cheekbone instead of the upper jawbone. They are used when the maxilla has resorbed too far to support conventional implants, and they make a bone graft unnecessary.
What is the zygoma?
The zygoma is the cheekbone. It is dense cortical bone that does not shrink after tooth loss, which is why it can serve as a reliable anchor even in patients with almost no remaining upper jawbone.
Are zygomatic implants painful?
The surgery itself is performed under general anesthesia or deep sedation, so there is no pain during the procedure. Afterward, expect noticeable swelling and discomfort for three to five days, similar to sinus surgery, controlled with prescribed medication.
How long do zygomatic implants last?
Published survival rates exceed 95 percent at five to twelve years. With good oral hygiene, professional maintenance and no smoking, they are intended to be a permanent solution. The bridge on top may need repair or replacement over time.
Can I get fixed teeth the same day?
In most protocols a fixed provisional bridge is attached within 24 to 72 hours, provided the implants achieve sufficient primary stability. If they do not, loading is delayed and a temporary removable solution is used for a few months.
Do zygomatic implants cause sinus problems?
Sinusitis is the most common complication, reported in roughly 2 to 5 percent of cases. It is usually treated with medication. Pre-existing sinus disease must be resolved before surgery, and the extrasinus technique lowers the risk in suitable anatomies.
Can zygomatic implants replace a failed bone graft?
Yes, and this is one of the main indications. Because the anchorage is in the cheekbone rather than in the grafted area, a previously failed sinus lift or block graft does not have to be repeated.
Am I too old for zygomatic implants?
Age alone is not a contraindication. General health, medication — particularly bone-modifying drugs — smoking status and the ability to tolerate two to four hours of anesthesia matter far more than the number on your chart. Many candidates are in their seventies and eighties.
Medically reviewed: This article was reviewed for medical accuracy by a dentist within the Leading Implant Centers network.
Sources
- American Association of Oral and Maxillofacial Surgeons (AAOMS) – clinical guidance on implant surgery and management of the atrophic maxilla
- Academy of Osseointegration (AO) – position statements on implant survival and immediate loading protocols
- International Team for Implantology (ITI) – treatment guidelines for the severely resorbed maxilla
- European Association for Osseointegration (EAO) – consensus reports on zygomatic implant outcomes and complications
- National Institute of Dental and Craniofacial Research (NIDCR) – background on tooth loss, bone resorption and oral health
- Cochrane Oral Health – systematic reviews on interventions for the atrophic edentulous maxilla
Certified implantologists from our network
Every practice in our network is admitted only after meeting the quality criteria of Leading Implant Centers.
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Mrs. DDS, DMD, DD Mehrsa Jalili Toka
Valinor Dental Clinic
Istanbul, Turkey
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Dr. med. dent. Rafael Burgmann MSc MSc
Praxis für Oralchirurgie & Implantologie
Leverkusen, Germany
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Dr. Torben Hennies (Göttingen)
Smile and Care by Dr. Torben Hennies
Göttingen, Germany
Find an implantologist near you
Our Scientific & Advisory Board developed these admission criteria and takes part in reviewing new member practices. Quality criteria · Scientific & Advisory Board
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