Am I a Candidate for Zygomatic Implants?
You are likely to be considered for zygomatic implants if you have lost most or all of your upper teeth and there is too little jawbone left to hold standard implants — the situation these implants exist for. Very little rules treatment out completely; far more often a condition changes the plan, the timing or the risk conversation rather than ending it. This page sets out what a surgeon actually assesses, what counts as an absolute rather than a relative contraindication, and why nobody can answer the question honestly before seeing a scan.
- What actually gets assessed, in order
- Absolute vs relative contraindications
- Why age alone is not a reason to refuse
Decides suitability
CBCT scan
Age limit
None on its own
Absolute bars
Few
Most common blocker
Health, not bone
indicative
Who is typically a candidate?
The core indication is narrow and well described. The 2023 ITI consensus report states that zygomatic implants are "mainly indicated in cases with maxillary bone atrophy or deficiency" — in plain terms, an upper jaw that has shrunk or been lost to the point where conventional implants have nothing to hold onto. [1]
In practice that covers a recognisable group: long-term upper denture wearers whose ridge has flattened over years, people who have lost upper teeth to advanced gum disease, patients whose previous implants or bone grafts have failed, and those who have lost jaw structure to trauma or to cancer surgery. What they share is not a diagnosis but a measurement — there is not enough bone in the upper jaw, and the cheekbone above it is intact.
You do not need to have lost every upper tooth. Many plans combine zygomatic implants at the back, where bone loss is usually worst, with standard implants at the front where some bone often remains. Which configuration suits you is a question about your anatomy, not about how bad things feel.
Signs you may be in this group
None of these confirms suitability on its own, but if several apply it is reasonable to ask about zygomatic implants specifically:
- You have been told there is "not enough bone" for implants in the upper jaw
- You have been offered a major bone graft or a sinus lift and want to understand the alternatives
- You have worn an upper denture for years and it has become progressively looser
- Previous implants in your upper jaw have failed or been removed
- A previous bone graft did not take
- You have been quoted for All-on-4 and then told your bone will not support it
Absolute contraindications are genuinely rare
It is worth being precise about language, because clinics use these terms loosely. An absolute contraindication means treatment should not go ahead at all. A relative contraindication means the risk is raised and has to be managed, discussed and sometimes traded off — not that the door is closed.
Very few things fall into the first category. The ones that do tend to be structural or situational rather than a matter of general health: no usable zygomatic bone on the scan, an active untreated infection at the surgical site, or being unable to undergo the anaesthesia the operation requires.
Almost everything else patients worry about — age, diabetes, smoking, having had implants fail before — sits in the second category. That distinction matters, because being told "you are not suitable" without being told which kind of unsuitable is meant leaves you unable to act on it. Each has its own guide: smoking, diabetes, and what happens when an implant fails.
Why there is no upper age limit
Implants fuse with bone through osseointegration, and that process does not switch off with age. Older bone can integrate implants successfully; what changes with age is the likelihood of carrying other health conditions and taking medication that affects healing. It is those conditions, not the years, that shape the decision.
There is also a practical point that cuts the other way. Many people who most need zygomatic implants are older, precisely because the bone loss that rules out standard implants takes decades of denture wearing to develop. Treating age as a barrier would exclude exactly the group the technique was designed for.
What older patients are more likely to need is a more careful pre-operative work-up — a proper look at medication, cardiovascular fitness and anaesthetic risk — rather than a different implant plan.
Why there is a lower age limit
The one place where age genuinely is the criterion is at the young end. Implants are fixed in bone and do not move, while a growing jaw does. Placing an implant before facial growth is complete can leave it out of position as the surrounding bone continues to develop.
Clinics therefore wait until skeletal growth has finished, which is assessed individually rather than by a fixed birthday — growth completes at different times for different people, and typically later in men than in women. The published position is that osseointegrated implants are generally contraindicated until craniofacial growth has been completed, because an implant placed earlier behaves like an ankylosed tooth while the jaw around it keeps developing, producing infraocclusion and interfering with alveolar growth. [12]
In practice this rarely affects zygomatic candidates, who are overwhelmingly adults with long-standing bone loss.
What changes the assessment, and how
The evidence below is drawn from general implant literature except where zygomatic-specific data exists; where studies disagree, that is stated rather than averaged away.
| Factor | Absolute or relative | What the evidence shows | Usual effect on the plan |
|---|---|---|---|
| No usable zygomatic bone on CBCT | Absolute | The implant has nothing to anchor into | Treatment not offered; other routes considered |
| Active infection at the surgical site | Absolute until treated | Standard surgical principle | Treat first, then reassess |
| Unfit for general anaesthesia or sedation | Absolute for this approach | Anaesthetic assessment, not a dental one | Referral for anaesthetic opinion |
| Smoking | Relative | Failure odds ratio 2.402 overall and 2.910 in the maxilla across 292 studies; crestal bone loss increased by around 0.64 mm. Not "an absolute contraindication for implant therapy" [2] [3] | Proceeds with a frank risk discussion; may affect guarantee terms |
| Diabetes | Relative | Meta-analyses commonly treat HbA1c above 8% as poor control and link higher levels to more peri-implant disease, but studies "reported conflicting results" on long-term peri-implant health regardless of control [4] | Control is assessed with your diabetes team before booking |
| Active gum disease, untreated decay, poor oral hygiene | Relative | Published NHS hospital criteria list these among reasons treatment is not offered [5] | Stabilise first; most units expect this before implants |
| Age | Not a contraindication | Five-year survival was 96.8% in patients over 75 versus 92.1% at 65–75 across 27 studies; the authors conclude "advanced age is not a contraindication for implant therapy" [6] | Assessed on health and healing, not birth year |
| Previous implant or graft failure | Relative | Often the reason zygomatic implants are considered in the first place | The cause of the earlier failure is investigated first |
| Antiresorptive medication (bisphosphonates and similar) | Relative — needs specialist input | A recognised jaw-surgery risk topic; we have not yet cited a guideline here and this page should not be relied on for it | Liaison with the prescribing clinician |
| Previous head and neck radiotherapy | Relative — needs specialist input | Listed as an implant risk factor in the general literature [2] | Specialist assessment before any plan |
| Sinus disease | Relative | Zygomatic implants pass through or alongside the maxillary sinus; sinusitis is the most commonly reported complication at 14.2% prevalence [1] | Sinus assessed on the scan; may be treated first |
This table describes how these factors are generally weighed. It is not a screening tool and cannot be applied to your own case without a clinician.
Why only a CBCT scan can decide
Everything above narrows the field. None of it settles the question, because the deciding factor is a measurement that cannot be estimated from the outside: how much bone remains in your upper jaw, and what the zygomatic bone above it looks like in three dimensions.
A cone-beam CT scan shows the height and width of remaining bone, the shape and health of the maxillary sinus, and the position of the structures a surgeon has to avoid. That is what a treatment plan is built from. A panoramic X-ray is a useful first look but it flattens a three-dimensional problem into two, which is why it can suggest possibilities but not confirm them.
This is also why the sequence matters. A scan first, then a plan, then a price. If a price arrives before a scan, what you have been given is a starting position rather than an assessment — see how to check a surgeon for the questions that expose the difference.
What a pre-operative assessment involves
The sequence varies between clinics; this is the shape of it.
- 1
Medical history
Conditions, medication, allergies, previous surgery and anaesthetic history. Bring a current repeat-prescription list — it is the single most useful document you can provide.
- 2
CBCT scan
A 3D scan of the jaw and cheekbone. This decides what is anatomically possible, and nothing about suitability can be settled without it.
- 3
Anaesthetic review
Fitness for sedation or general anaesthesia, assessed by an anaesthetist. May involve blood tests or an ECG depending on your history.
- 4
Liaison with your own doctors
If you take antiresorptive drugs, blood thinners or immunosuppressants, the clinic should want to speak to whoever prescribes them before planning surgery.
Being refused elsewhere is not always a final answer
A large share of people who end up having zygomatic implants were told at some point that implants were impossible for them. That statement is usually accurate about the treatment being discussed at the time — standard implants in a jaw that cannot hold them — and not about every option that exists.
It also runs the other way, and this deserves saying plainly: being told you are suitable is not the same as being told this is your best option. Grafting remains the more thoroughly studied route for people who have enough bone to rebuild, and a well-made denture is a legitimate choice rather than a failure. Every option when you have bone loss sets those side by side.
The published evidence is also consistent on one point that has nothing to do with your anatomy: this is a technique-sensitive operation and outcomes track the surgeon. One overview of systematic reviews concludes it "should be reserved only to professional clinicians with vast surgical experience and a good knowledge of the 3D anatomy". Whoever assesses you should be someone who does these regularly. [7]
Common questions about qualifying
How much bone loss is too much for zygomatic implants?
Who should not have zygomatic implants?
Am I too old for zygomatic implants?
Can I have zygomatic implants if I smoke?
Do I need a CT scan before anyone can tell me if I qualify?
My dentist said implants are impossible for me. Is that the end of it?
Does having had a failed bone graft rule me out?
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
- 21 August 2026
- Last revised
- 21 August 2026
- Cited sources
- 9
- Clinical sign-off
- Pending · 14 statements queued
Sources & references
- [1]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. Source of the indication statement and of the 14.2% sinusitis prevalence figure.
- [2]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.
- [3]Mustapha AD, Salame Z, Chrcanovic BR. Smoking and Dental Implants: A Systematic Review and Meta-Analysis. Medicina (Kaunas). 2021;58(1):39. Failure odds ratio 2.402 overall and 2.910 in the maxilla across 292 publications; mean marginal bone loss difference 0.580 mm.
- [4]Aldahlawi S, Nourah D, Andreana S. Should Quality of Glycemic Control Guide Dental Implant Therapy in Patients with Diabetes? Focus on: Peri-Implant Diseases. Clin Cosmet Investig Dent. 2021;13:149–154.
- [5]Leeds Teaching Hospitals NHS Trust, Restorative Department Referral Protocols — Dental Implants (July 2024). An example of published NHS hospital acceptance criteria and exclusions. Criteria vary by trust.
- [6]Abou-Ayash S, Bjelopavlovic M, Molinero-Mourelle P, Schimmel M. Implant Survival in Patient Populations With a Mean Age of 65–75 Years Compared to Older Cohorts: A Systematic Review and Meta-Analysis. Clin Oral Implants Res. 2025;36(9):1053–1074. Concludes that "advanced age is not a contraindication for implant therapy".
- [7]Ramezanzade S, Yates J, Tuminelli FJ, Keyhan SO, Yousefi P, Lopez-Lopez J. Zygomatic implants placed in atrophic maxilla: an overview of current systematic reviews and meta-analysis. Maxillofac Plast Reconstr Surg. 2021;43(1):1.
- [8]Calciolari E, Corbella S, Dourou M, Ercal P, Donos N. Tobacco Smoking and Smoke-Free Products as Risk Factors for Dental Implants: A Systematic Review. Clin Oral Implants Res. 2026;37(3):262–286. Source of the statement that smoking "is not considered an absolute contraindication for implant therapy".
- [9]Antiresorptive medication (bisphosphonates and related drugs) and jaw surgery — a guideline still needs to be cited here. This is a genuine safety topic and this page should not be relied on for it.pending confirmation
- [10]Professional guidance on the use of cone-beam CT in implant planning — reference still to be added.pending confirmation
- [11]This page is for information only and is not a substitute for professional medical advice, diagnosis or treatment. It cannot assess your individual suitability. Some clinical statements are still awaiting sign-off by our medical reviewer; the badge beside the byline shows how many have been confirmed.
- [12]Komisarek O, Kwiatkowski J, Szczypkowska N, Banasiak Ł, Burduk P. Orthodontic Mini-Implants for Interim Tooth Replacement in Growing Patients with Hypodontia: A Narrative Review. J Clin Med. 2025;14(14):4963. States that osseointegrated implants are generally contraindicated until craniofacial growth has been completed, to avoid infraocclusion, implant ankylosis and interference with alveolar development, and that skeletal maturity rather than chronological age is the determining factor.
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