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Independent patient guide · Medically reviewed by a Specialist Periodontist · Last updated August 2026
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Zygomatic Implants: Success Rates, Risks & Complications

Zygomatic implants have a long published track record, with survival comparable to standard implants, but they remain major surgery carried out in bone close to the sinus and the eye socket — and sinusitis is the most commonly reported complication. This page sets out what the evidence reports about survival, what can go wrong, what happens when an implant fails, and the single factor that changes your risk more than any other.

  • Published survival figures, with sources
  • Every complication named, not softened
  • The one factor that changes your risk most
A dental professional carefully reviewing a dental X-ray on a computer

Long-term survival

~95–96%6–12 yrs, see sources

Illustrative photography — not a patient of any clinic.

Long-term survival

~95–96%

6–12 yrs, see sources

Most common issue

Sinusitis

Biggest risk factor

Surgeon experience

Serious complications

Rare but possible

Are zygomatic implants safe?

Zygomatic implants have been placed since the late 1980s and followed in clinical studies for more than 25 years. Published pooled analyses put long-term survival at around 95–96%: one meta-analysis of 4,556 implants reports 95.21% cumulative survival at twelve years [1], and the 2023 ITI consensus review reports 96.2% over a mean follow-up of 6.3 years [6]. That is broadly comparable with conventional implants in healthy jawbone. Whether they suit your own jaw is a separate question — see who is and is not a candidate.

That number needs context rather than celebration. Survival means the implant is still in place and carrying a bridge; it does not mean treatment was free of problems along the way. Most published series come from surgeons who place these implants regularly, often in university or referral settings, and results from that environment cannot be transferred to a practice handling a handful of cases a year.

What matters just as much is the comparison. If your upper jaw has severe bone loss, the realistic alternatives are extensive bone grafting followed by conventional implants, or continuing with a removable denture — each with its own risks and trade-offs. The honest question is not whether this surgery carries risk, because all surgery does, but whether the balance suits your anatomy and priorities. See all the options when bone is limited.

What the published evidence reports

95–96%
Pooled survival — 95.21% at 12 years, 96.2% at a mean of 6.3 years
Sources: [1] [6]
25+ years
Length of published clinical follow-up on zygomatic protocols
Source: [4]
Sinusitis
The complication most frequently reported in published series
Source: [2]
Rare
Reported frequency of orbital (eye-area) injury — rare, but described
Source: [3]

Why the anatomy explains the risk profile

A conventional implant sits within the jawbone. A zygomatic implant is far longer and runs from the upper jaw, through or alongside the maxillary sinus, into the cheekbone — placing part of its path near the sinus lining and, higher up, near the floor of the orbit. Almost every complication below follows from that route.

Standard implant compared with a zygomatic implantSide view of the upper jaw. A standard implant is 8 to 15 millimetres and relies on the upper jawbone, which becomes too thin after bone loss. A zygomatic implant is 30 to 52.5 millimetres and passes alongside the sinus to anchor in the cheekbone, which does not shrink.Standard implantGrips the upper jawbonecheekbone — not usedsinusthin jawboneyour remaining upper teeth8–15 mmNothing solid left to hold itThis is when clinics say “you need a bone graft”Zygomatic implantReaches past it, into the cheekbonecheekbone — stays solidsinussame thin jawbonea full fixed bridge on top30–52.5 mmpasses beside the sinusAnchored above the missing boneOften no graft, and fixed teeth much sooner
Simplified side view for explanation only — not to anatomical scale. Implant lengths and placement are decided from your own CT scan.

Zygomatic implants: pros and cons

A fair summary of the trade-off, based on what published studies and clinical guidance describe. Nothing here is a prediction for your case.

Reported advantages

  • Bone grafting can usually be avoided, because the cheekbone does not resorb after tooth loss as the upper jaw does
  • Normally a single surgical stage rather than a graft-then-implant sequence
  • A fixed provisional bridge is often attached within days rather than months
  • Offers a fixed option to people told they have too little bone for conventional implants
  • Anchorage in dense cheekbone underpins the long-term survival reported above [1]
  • Total treatment time is usually far shorter than grafting followed by implants

Risks and drawbacks — not softened

  • Sinusitis is the most commonly reported complication, as the implant passes near or through the sinus [2]
  • Infection and soft-tissue breakdown can occur around the implant head, sometimes years later
  • Temporary numbness or altered sensation in the cheek, lip or nose is described
  • Orbital (eye-area) injury is rare but serious, and is the clearest reason surgeon experience matters
  • An implant that fails to integrate must be removed and the plan reconsidered
  • Requires general anaesthesia or deep sedation, with the risks any anaesthetic carries
  • Speech and tongue position need a period of adjustment with a new bridge
  • Far fewer surgeons place these implants, so genuine experience is harder to find and verify
  • Revision, if ever needed, is more complex than revising a conventional implant
  • Lifelong hygiene and reviews are conditions of most written warranty terms

Zygomatic implant complications, one by one

Reported frequencies vary widely between published series depending on technique, case complexity and length of follow-up, so no single percentage can be quoted responsibly here — ask your surgeon which figures they use and where they come from [2]. A clinic that will not walk you through the whole list below before you consent is not giving you what you need to decide. If a complication does develop, what happens when a zygomatic implant fails covers removal, revision and where the NHS will and will not step in.

Individual complications explained

Sinusitis — the most commonly reported complication
Because the implant runs near or through the maxillary sinus, the sinus lining can become irritated or infected, and published series consistently report sinusitis as the most frequent complication of zygomatic treatment [2]. Signs include one-sided facial pressure, nasal blockage or discharge, or an unpleasant taste, and they can appear soon after surgery or years later. Most reported cases are managed medically, often with ENT input; a minority need surgical drainage, and occasionally an implant must be removed. Existing sinus disease should be identified on your CBCT scan and treated or planned around beforehand.
Infection and soft-tissue problems around the implant head
The tissue where the implant emerges is under load and harder to clean than the gum around a natural tooth. Inflammation, recession, tenderness and, less commonly, deeper infection at that site are all described, and some patients report the implant head feeling prominent under the cheek. Treatment is usually hygiene measures, professional cleaning and antibiotics where indicated, but persistent breakdown occasionally leads to removal — one reason maintenance is not optional.
Temporary nerve disturbance and cheek numbness
Sensory nerves supplying the cheek, upper lip and side of the nose run through the surgical field. Numbness, tingling or dulled sensation afterwards is described in the literature and usually improves as swelling settles, though the timescale differs between individuals and no honest clinician will promise a date. Persistent altered sensation is reported less often but is a recognised outcome and should appear on your consent form.
Orbital (eye-area) injury — rare but serious
The upper end of the implant path runs towards the cheekbone below the eye socket. Injury to the orbit or its contents is rare in published series but is described, and consequences can be serious, including bleeding into the orbit, double vision or, in isolated reports, effects on sight [3]. This risk is driven almost entirely by planning and technique: CBCT-based planning, understanding of the individual cheekbone shape, and the surgeon's experience of the drilling path. Any clinic that does not raise orbital risk during consent is not consenting you properly.
Zygomatic implant failure and what happens next
An implant fails when it does not integrate with the cheekbone, or loses integration later through infection or overload, and it then has to be removed. What follows depends on the cause and the remaining bone: a replacement after a healing interval, redesigning the arch around the remaining implants, or sometimes a return to a removable prosthesis. Because this is more complex than a failed conventional implant, agree in writing beforehand who pays for removal, replacement, a new bridge and any travel — particularly if you are treated away from home. See treatment abroad.
Speech adaptation and getting used to the bridge
A fixed full-arch bridge changes the shape of the palate and the space the tongue works in, so altered "s" and "th" sounds, a lisp or extra saliva are common at first, and most patients adapt over the following weeks. Reading aloud is the usual practical remedy. If speech does not settle, the prosthetic design can often be adjusted, so raise it rather than assuming you must live with it.
Prosthetic complications and anaesthetic risk
Survival statistics usually describe the implants, not the teeth on them. Screws can loosen, a provisional bridge can fracture and a final bridge will eventually wear — maintenance events rather than surgical complications, but with real cost and travel implications over a decade. Separately, this surgery is normally performed under general anaesthesia or deep sedation and needs proper medical assessment; smoking, uncontrolled diabetes, immune conditions and certain bone-modifying medicines all change the risk picture and must be disclosed.

Surgeon experience is the single biggest risk modifier

If you take one thing from this page, take this: with zygomatic implants, who operates matters more than the implant brand, the city or the price. The complications above are overwhelmingly technique-dependent, and placing a 30–52.5 mm implant along a path bounded by the sinus and the orbit demands anatomical experience a general implant dentist may simply not have.

That is not a criticism of implant dentists; it is an argument for asking direct questions and expecting specific answers. Volume is not the whole story — planning discipline, CBCT-based case selection and a clear complication pathway matter too — but a surgeon who cannot say how many zygomatic arches they completed last year has given you no way to judge any of it. Vague reassurance, or reluctance to discuss failures, tells you something important. Our guide to checking a zygomatic surgeon turns that into questions you can actually ask.

Questions that reveal genuine zygomatic experience

Ask these of any provider, in the UK or abroad, and note whether you get numbers or adjectives. Reputable clinics answer without defensiveness.

  • 1What specialty are you registered in, and where can I verify your registration?
  • 2How many zygomatic arches did you complete in the last twelve months, and over how many years in total?
  • 3How many were quad zygoma cases rather than hybrid cases?
  • 4What proportion of your own cases developed sinusitis, and how did you manage them?
  • 5Have you had an implant fail, or a nerve or orbital complication — and what changed afterwards?
  • 6Will you show me my CBCT-based plan, including the intended implant path, before I commit?
  • 7Which ENT or medical colleagues do you work with when a sinus problem arises?
  • 8Who treats me, where, and at whose cost if a complication appears after I travel home?

Factors that change your personal risk

The issues most often discussed in pre-operative assessment — prompts for a conversation with a clinician, not a scoring system.

Last updated: July 2026
FactorWhy it mattersWhat should happen about it
Smoking or vapingImpairs soft-tissue and bone healing; associated with higher complication rates across the implant literature [5]An honest discussion, a cessation plan, and clarity on how it affects warranty terms
Uncontrolled diabetesAffects healing and infection riskMedical review and stabilised control before a surgical date is agreed
Existing sinus disease or nasal obstructionThe implant path involves the sinus, raising the risk of post-operative sinus problemsIdentification on CBCT, ENT assessment where indicated, treatment or a planning change first
Previous failed implants or bone graftChanges available bone and soft tissue, and the original cause may be unresolvedFull history and previous imaging reviewed, plus a stated reason this attempt would differ
Heavy bruxism and bone-modifying medicationGrinding increases load on implants and bridge; some medicines affect jaw bone healingProsthetic allowance, a night guard where advised, and liaison with your GP or specialist
Distance from your surgeon and ability to attend reviewsComplications need timely assessment, and published survival assumes maintained implants [1]A written aftercare pathway, named UK contact arrangements, and a maintenance plan you can keep

This table is a discussion prompt, not a risk assessment. Only a clinician who has reviewed your CBCT scan and full medical history can assess your individual risk.

If something goes wrong: the pathway you should expect

Ask your provider to describe this pathway in writing before you consent. If they cannot, that is your answer.

  1. 1

    You report a symptom

    One named contact with a stated response time. Contact them promptly for one-sided nasal discharge or blockage, spreading facial swelling, fever, worsening rather than easing pain, a mobile bridge, or any change in vision.

  2. 2

    Assessment and imaging

    Clinical examination and, where indicated, new imaging. If you were treated abroad this often means a local UK clinician examining you while your surgeon reviews the findings — an arrangement to agree in advance, not improvise.

  3. 3

    Treatment of the problem

    Most reported complications are managed without surgery at this stage: antibiotics, sinus treatment, hygiene intervention, or adjustment of the bridge. ENT involvement is common for sinus problems.

  4. 4

    Surgical revision, if needed

    Removal, drainage or replacement of a failed implant. This is where written responsibility for costs and travel becomes concrete — and far too late to read the terms for the first time.

  5. 5

    Plan revision and long-term review

    The arch is redesigned around what remains and a revised maintenance schedule agreed. Published survival data assume this kind of continuing care [1].

How long do zygomatic implants last?

Pooled analyses report survival of around 95–96% — 95.21% cumulative at twelve years [1], and 96.2% over a mean 6.3-year follow-up [6]. Individual long-follow-up series describe implants still functioning beyond fifteen years [7]. Published follow-up does not currently extend much past that, so nobody can honestly quote a lifetime figure. Three further caveats belong with these numbers.

The implants and the teeth attached to them have different lifespans — the bridge is a wearing component that may need repair or renewal well before the implants do, a recurring cost our cost guide covers. Those figures also describe maintained implants in patients who attended reviews; outcomes in people who stop attending are not what the survival literature measures. And an average is not a prognosis: bone quality, sinus health, smoking, bite forces and surgical skill all shift your individual outlook in both directions. A clinician who has seen your scan can discuss your case; a website cannot.

Frequently asked questions

Are zygomatic implants safe?
In experienced hands they have a long published track record, with pooled survival of around 95–96% — 95.21% at twelve years [1] and 96.2% over a mean 6.3 years [6]. They remain major surgery, and complications are documented: sinusitis is the most common, reported at 14.2% prevalence [6], while serious problems such as orbital injury are rare but described. Safety here depends heavily on surgical experience and CBCT-based planning.
What is the most common complication of zygomatic implants?
Sinusitis. Because the implant passes near or through the maxillary sinus, sinus inflammation or infection is the complication most frequently reported in published series [2]. Most reported cases are managed medically, sometimes with ENT input; a minority require surgery and occasionally an implant must be removed.
What are the main pros and cons of zygomatic implants?
The advantages are avoiding bone grafting, a single surgical stage, a much shorter overall treatment time and a fixed option for people told they have too little bone for conventional implants. The drawbacks are sinusitis and soft-tissue infection risk, possible temporary cheek numbness, a rare but serious risk of orbital injury, the need for general anaesthesia or deep sedation, more complex revision if an implant fails, and the difficulty of finding a genuinely experienced surgeon.
How long do zygomatic implants last?
Pooled analyses report around 95–96% survival — 95.21% cumulative at twelve years [1] — and long-follow-up series describe implants still in function beyond fifteen years [7]. Published follow-up does not extend much further than that, so a lifetime figure cannot honestly be quoted. The bridge fitted on top is a wearing component and may need repair or renewal sooner than the implants themselves.
What happens if a zygomatic implant fails?
It has to be removed. Depending on the cause and the remaining bone, options include a replacement implant after a healing interval, redesigning the bridge around the remaining implants, or returning to a removable prosthesis. Agree in writing beforehand who is responsible for the cost of removal, replacement, a new bridge and any travel.
Can a zygomatic implant damage the eye or the sinus?
The sinus lies directly on the implant path, which is why sinusitis is the most commonly reported complication. Orbital injury is rare in published series but is a recognised risk that should be discussed during consent. Both are strongly influenced by planning and by the operator's experience with zygomatic anatomy.
Does the surgeon's experience really change my risk?
Published discussion of zygomatic complications points repeatedly to technique and planning as the dominant factors, which makes operator experience the most important variable you can influence [2]. Ask how many zygomatic arches the surgeon completed in the past year, ask to see your CBCT-based plan, and ask directly about their own complications.

How we reviewed this page

Written by the ZygomaticImplant.net editorial team and checked against the published literature. What we accept as a source, the difference between a page that is cited and one that is clinically signed off, and how we handle corrections are all set out in our editorial standards.

First published
10 August 2026
Last revised
21 August 2026
Cited sources
8
Clinical sign-off
Pending · 39 statements queued

Sources & references

  1. [1]Lorusso F, Conte R, Inchingolo F, Festa F, Scarano A. Survival Rate of Zygomatic Implants for Fixed Oral Maxillary Rehabilitations: A Systematic Review and Meta-Analysis Comparing Outcomes between Zygomatic and Regular Implants. Dent J (Basel). 2021;9(4):38.
  2. [2]Molinero-Mourelle P, Baca-Gonzalez L, Gao B, Saez-Alcaide LM, Helm A, Lopez-Quiles J. Surgical complications in zygomatic implants: a systematic review. Med Oral Patol Oral Cir Bucal. 2016;21(6):e751–e757.
  3. [3]Weber MI, Koschitzki E. Ocular Complications of Zygomatic Dental Implants: A Systematic Review. Cureus. 2024;16(8):e67535.
  4. [4]Brånemark P-I, Gröndahl K, Ohrnell L-O, Nilsson P, Petruson B, Svensson B, et al. Zygoma fixture in the management of advanced atrophy of the maxilla: technique and long-term results. Scand J Plast Reconstr Surg Hand Surg. 2004;38:70–85.
  5. [5]Chen H, Liu N, Xu X, Qu X, Lu E. Smoking, Radiotherapy, Diabetes and Osteoporosis as Risk Factors for Dental Implant Failure: A Meta-Analysis. PLoS One. 2013;8(8):e71955.
  6. [6]Al-Nawas B, Aghaloo T, Aparicio C, et al. ITI consensus report on zygomatic implants: indications, evaluation of surgical techniques and long-term treatment outcomes. Int J Implant Dent. 2023;9:28. Mean survival 96.2% over a mean 6.3-year follow-up; sinusitis the most common complication at 14.2% prevalence; immediate loading 98.1% versus delayed 95%.
  7. [7]Davó R, Fan S, Wang F, Wu Y. Long-term survival and complications of Quad Zygoma Protocol with Anatomy-Guided Approach in severely atrophic maxilla: A retrospective follow-up analysis of up to 17 years. Clin Implant Dent Relat Res. 2024;26(2):343–355. The longest follow-up series we could identify: 97.8% survival over a mean 8.8 years (range 1.2–17.0), with mean time to failure of 8.6 years.
  8. [8]General Dental Council standards and Advertising Standards Authority (ASA) / CAP Code guidance on advertising dental treatment.
  9. [9]This page is for information only and is not a substitute for professional medical advice, diagnosis or treatment. It is awaiting sign-off by our medical reviewer.pending confirmation