Zygomatic Implants: Fixed Teeth With Severe Upper Jaw Bone Loss

Zygomatic implants are long implants that anchor in the cheekbone instead of the thinned upper jaw, so some people with severe bone loss can get fixed teeth without large sinus grafts. A 2025 pooled analysis of 15 studies found success rates of about 96.7% for zygomatic implants and 97.9% for conventional implants in severely resorbed upper jaws. The research is encouraging but still maturing, and placement is specialized surgery that usually involves a referral.

What is a zygomatic implant, and why would someone need one?

After upper teeth are lost, the bone that once held them slowly shrinks. The sinuses above also tend to expand downward. Over time, many people are left with too little bone for standard implants, which are usually about 10 to 15 millimeters long.

Zygomatic implants are much longer, often 30 millimeters or more. Instead of relying on the thin upper jaw, they reach back and up to anchor in the dense cheekbone (the zygoma). Typically, two to four of them support a full arch of fixed teeth, and they can be combined with a few conventional implants toward the front of the mouth when there is enough bone there.

The traditional route for these patients has been bone grafting. That can mean a sinus lift or taking bone from elsewhere in the body. It often means a staged process with months of healing before implants can go in, and grafts do not always succeed. Zygomatic implants are one way to skip that step.

What does the recent research actually show?

The 2025 analysis combined 15 studies covering roughly 1,555 zygomatic implants and 1,865 conventional implants in patients with severely resorbed upper jaws. Here is what it reported:

• Success: about 96.7% for zygomatic implants compared with 97.9% for conventional implants. In practical terms, the two were comparable.
• Sinusitis: the most common complication, at roughly 3%.
• Infection: about 1.6%.
• Less common problems: inflammation around the implant, small openings between the mouth and sinus, and, rarely, drilling that strays toward the eye socket.

It is important to be clear about what this does not show. Most of the included studies were observational rather than randomized trials, and most were judged to carry a higher risk of bias. Follow-up ranged from about six months to eight years, so we know less about what happens at 15 or 20 years. The authors themselves described the evidence as limited and called for better-designed, longer studies. Earlier reviews point in a similar direction, but they also describe wide variation in techniques and reporting.

So the fair summary is this: for carefully selected patients treated by experienced surgeons, results look promising and broadly comparable to standard implants. It is not yet settled, long-term science.

Who is a candidate?

Zygomatic implants are generally considered for adults who:

• Have lost most or all upper teeth and have severe bone loss in the back of the upper jaw.
• Have been told conventional implants would need extensive grafting, or would like to avoid it.
• Have had earlier implants or grafts fail, or have lost bone to trauma or surgery.
• Are otherwise healthy enough for surgery and have active gum disease, decay, or infection under control first.

Studies tend to exclude people with active oral infections, so treating those problems comes first. A dentist will typically also recommend a sinus evaluation beforehand, usually with a 3D scan, because sinus health matters. Placing the implant through the sinus is linked to more sinus complications than placing it along the outside of the sinus wall, and the right approach depends on your anatomy.

What is the specialist and referral pathway?

Researchers describe zygomatic implant placement as technically challenging, with real risks when it is not done carefully, partly because the implant passes close to the sinus and eye socket. For that reason, it is typically done by an oral and maxillofacial surgeon or another surgeon with specific advanced training and experience in this technique, often with 3D planning or guided tools.

A typical path looks like this:

1. Consultation and 3D imaging to measure remaining bone and check sinus health.
2. Treatment of any gum disease, decay, or infection so the mouth is healthy before surgery.
3. Referral to a surgical specialist for planning and implant placement.
4. Temporary and final fixed teeth made to fit your bite, with ongoing cleaning visits to protect the implants.

If you live in Belmont or elsewhere in San Mateo County, our team can review your records and imaging, talk through whether this option fits your situation, and help coordinate with a specialist when it makes sense. Costs vary with case complexity, the number of implants, and the type of final teeth, and we provide a written estimate after your consultation. Many patients use PPO benefits where they apply, and 0% APR financing through CareCredit or Proceed Finance may be available.

Common questions about zygomatic implants

Q: Does this mean I never need a bone graft?

A: Not necessarily. Zygomatic implants can avoid large sinus grafts in many cases, but some plans combine them with conventional implants or minor grafting. Your scan and bite will guide the decision.

Q: Can I get teeth right away?

A: Sometimes. Because these implants are long and anchored in dense bone, a temporary fixed set of teeth can often be attached soon after surgery, depending on how stable the implants are. Your surgeon will decide this case by case.

Q: What is the main risk?

A: Sinusitis is the most commonly reported complication, affecting roughly 3% of patients in the recent analysis, and it often responds to antibiotics. Infection and other problems are less common. These implants are not usually the first option tried, which is why a careful evaluation matters.

Q: Are these implants proven for life?

A: No implant is. Results are encouraging, but long-term data are still being collected. Good home care and regular dental checkups remain essential.

Take the next step

If you have struggled with loose dentures, been told you do not have enough bone for implants, or want to understand your options, a consultation is a good starting point. Call Carlmont Dental Care at (650) 591-1984 or visit carlmontdentalcare.com to schedule a visit, and we will walk through your options at your pace.