Implants and Your Health

Who cannot have implants?

There are few real barriers; most of what is called 'not possible' is temporary or simply not true

The 'who cannot have implants' lists circulating online differ widely from one another, and most of them are out of date. Some describe a real medical barrier, some present a temporary condition as if it were a permanent ban, and some bring questions that have no medical connection with implants (ritual ablution, military service, blood donation) onto the same page. On this page we have separated the three: absolute barriers, risk factors that are managed through planning, and questions whose answer lies somewhere other than with a dentist.

Short answer

The situations in which a dental implant is permanently ruled out are few: a jawbone that has not finished developing, high-dose intravenous bone medication or radiotherapy to the jaw, a severe bleeding disorder that has not been brought under control, and untreated active inflammation in the mouth. The most frequently asked-about topics, such as diabetes, smoking, heart medication, older age and insufficient bone, are not barriers but risk factors managed through planning. Questions about MRI scans, ritual ablution, military service or blood donation are not medical barriers; their answers lie outside a dentist's field.

Number of real barriers: Few; most are temporary or manageable
Absolute barriers: Incomplete jaw development, strong bone medication, uncontrolled bleeding, active inflammation
Thought to be barriers, but are not: Diabetes, smoking, age, insufficient bone (if under control)
Questions unrelated to implants: Ritual ablution, military service, blood donation: the answer lies elsewhere

Medically reviewed by Bilge Ilgın, Dentist · ImplantologyLast reviewed 2026-09-13

Which 'cannot' is real, and which is not

Patients who search for this topic usually come across three different lists, all mixed up together. The first is the real medical barriers, which are few in number. The second is risk factors that are not barriers on their own but are described as permanent bans in old or incomplete sources. The third is questions that have no medical connection with implants but come up under the same search phrase: the effect on a religious practice, eligibility when applying to an institution, blood donation and so on. The job of this page is to separate the three; once you find which one concerns you, the answer becomes clear too.

One of the real barriers is a jawbone that has not yet finished developing. An implant does not move with the bone the way an erupting tooth does; while the bone around it continues to grow, the implant stays fixed where it is. That is why an implant placed before development is complete can, over the years, look sunken and tilted compared with the neighbouring teeth. What matters is not date of birth but skeletal maturity; in cases planned around the growth pattern, implants can be discussed at a young age too, but the decision is made with imaging and a specialist assessment.

The second real barrier is high-dose bone medication given intravenously and a history of radiotherapy to the jaw. With bisphosphonates taken by mouth for osteoporosis, jawbone complications are very rare, and these medicines are not considered a general barrier to implants; we cover this in detail on our osteoporosis page. But when the same group of medicines is given intravenously at high doses as part of cancer treatment, or when the jaw has had radiotherapy, the picture changes completely: in this group, the risk of tissue damage in the jawbone that does not heal rises markedly. It is important not to confuse the two.

The third and fourth real barriers are more temporary in nature. With a severe bleeding disorder that has not been brought under control, bleeding during surgery can become unpredictable; this is different from taking a blood thinner (anticoagulant), because for patients who take blood thinners there is a route that can be planned without stopping the medicine. Untreated active inflammation or an abscess in the mouth is likewise a temporary barrier: placing an implant in an inflamed foundation puts both the surgery and the result at risk, so that is dealt with first. Neither of them means the door is closed for good; each is simply the next step.

The long list is made up of topics that are risk factors rather than barriers: diabetes, smoking, blood pressure (uncontrolled or controlled) and heart medication, older age, osteoporosis medication and being told on a CBCT scan that 'there is not enough bone'. In all of these, what matters is not the diagnosis itself but whether the condition is under control; each one changes the planning but does not close the door. We have pages that cover each of these topics separately and in detail; rather than repeating them here, we have chosen to show which question is answered on which page.

The last group is questions that have no medical connection with implants but are asked often: does an implant affect ritual ablution (wudu) or full ritual washing (ghusl), does it rule you out of military service, the police or MSÜ (Turkey's National Defence University), does it stop you giving blood? The answers to these do not lie in a dentist's knowledge. The first is a religious matter and should be put to a qualified religious authority; the second depends on the relevant institution's own health regulations and can change over time; the third is subject to the blood service's own rules. A clinic giving definite answers to these questions is really speaking on a matter outside its authority; the right thing to do is point you in the right direction.

What genuinely needs a closer look, and what is a misconception

The division below separates the two groups that get mixed up most when people research implants: real situations your dentist needs to assess, and questions that have no medical connection with implants.

The tooth can be saved

Diabetes, smoking, blood pressure and heart medication, older ageNone of these rules out implants on its own; what matters is not the diagnosis itself but whether the condition is under control. We explain how each one affects planning on separate pages.
Being told on a CBCT scan that 'you do not have enough bone'This means that the volume a conventional implant looks for is not there. With planning that anchors in the hard outer bone, a graft is not needed in most cases; the 3D scan decides.
Needing an MRI or CT scan in futureAn implant does not stop you having these scans; it only needs to be mentioned before the scan. We cover this in detail on our page about whether implants are harmful.
Having questions about ritual ablution, ghusl, military service, the police, MSÜ or blood donationThese are not medical contraindications; the answers lie not with a dentist but with the relevant religious or institutional authority. We explain below why we say this.

Saving it is unlikely to hold

Children and young people whose jawbone has not finished developingAn implant does not move with the bone the way an erupting tooth does; if it is placed before development is complete, it can end up sunken in relation to the surrounding teeth over time. What matters is not age but skeletal maturity.
Patients on high-dose intravenous bone medication or who have had radiotherapy to the jawIn this group, the risk of tissue damage in the jawbone that does not heal is markedly higher. This should not be confused with bisphosphonates taken by mouth for osteoporosis; their risk profile is very different.
A severe bleeding disorder that has not been brought under controlTaking a blood thinner is one thing; a medicine or a condition making bleeding unpredictable is another. In the second case, a haematology assessment is needed first.
Untreated active inflammation or an abscess in the mouthThis is not a permanent barrier but the next step. An implant is not planned until the inflammation is under control; the assessment is repeated after treatment.

Which group your situation falls into, and how to find out

The steps below make it clear whether the topic that concerns you is an absolute barrier, a temporary condition or a misconception.

1
Take your health history and all your medicines with you in writing
In particular, mention any bone medication given intravenously (for osteoporosis or cancer treatment), any head and neck radiotherapy you have had and any history of bleeding disorders; these should be passed on in writing, not from memory.
2
The mouth examination checks for active inflammation
If there is an abscess, advanced gum disease or untreated decay, this is dealt with first. This is not a refusal; it is a question of order.
3
A 3D CBCT scan shows the bone and its development
In young patients, whether jaw development is complete, and in adults, the volume and quality of the bone, are assessed on the scan.
4
If needed, a written opinion is obtained from the relevant doctor
In borderline cases, the opinion of your oncologist, haematologist or internal medicine specialist determines the plan. The decision does not rest with the dentist alone.
5
If you are applying to an institution, check its current regulations
For applications such as military service, the police or MSÜ, eligibility is determined not by the dentist but by the relevant institution's own health regulations, and these rules can change over time.
6
If you have a religious question, consult a qualified religious authority
The physical fact we can tell you is this: an implant is not a part that is taken out and put back, but a fixed structure placed surgically. How this affects worship is a religious matter, and the answer lies outside the field of dentistry.

Routes to discuss if you do have an absolute barrier

When a real barrier turns up, implants may not be a door that closes completely; more often, what is discussed is timing or an interim solution.

A temporary solution until development is complete

In a young patient, the gap is closed with a temporary solution that is either removable or bonded to the teeth; implants are reassessed once skeletal maturity is clear.

Timing coordinated with the relevant treatment

If your bone medication treatment has ended, or enough time has passed since radiotherapy, the picture may change; this needs to be assessed together with the relevant doctor.

Gum and inflammation treatment first

Once active inflammation has been treated and the mouth has settled, implants come back into consideration. This wait is usually limited to a few weeks.

Solutions without implants

A bridge or a removable denture can be chosen for as long as a real barrier remains, or permanently. In return, a bridge means the neighbouring teeth are cut down, and a removable denture does not stop bone loss.

A second opinion

In a borderline case, a second assessment makes the reasoning behind the decision clearer. We cover this in detail on our page about getting a second opinion.

The risks of skipping the assessment and going ahead

The following summarises what it means to go ahead without an assessment when one of the real barriers above is present.

Tissue damage that does not heal

If a history of high-dose intravenous bone medication or radiotherapy is missed, surgery can lead to a wound in that area that does not heal. This is something that must be asked about before any operation.

Wrong positioning in a growing jaw

An implant placed before development is complete does not move with the surrounding bone, so over the years it can look sunken and tilted; correcting this requires new surgery.

Unpredictable bleeding

With a bleeding disorder that has not been diagnosed or is not being monitored, bleeding during surgery can last longer than expected. This is prevented by a haematology assessment beforehand.

Spread of inflammation

Surgery carried out over an active abscess can carry the infection deeper. Treating the inflammation first makes the result both safer and longer-lasting.

After the assessment

Once the topic that concerns you is clear, the process usually goes like this.

The same day
After the examination and the CBCT scan, it is largely clear that day which group you are in: no barrier, a temporary barrier or an absolute one.
A few weeks for temporary conditions
Treating the inflammation or getting an opinion from the relevant doctor is usually completed within a few weeks; this time is not without cost for the bone, but it is short.
Further discussion in borderline cases
The written exchange with your oncologist, haematologist or internal medicine specialist determines when and how the plan will go ahead.
A reassessment schedule if there is an absolute barrier
When the treatment has ended or development is complete, implants are discussed again; this date is agreed together in advance.

Message us right away if

You are not sure of the name of your bone medication or how it is taken. Whether it is taken by mouth or intravenously is decisive for the risk; simply bring your prescription or the medicine box.
You have had radiotherapy. A history of radiotherapy to the head and neck area directly affects planning; tell us which area it was given to and when.
You have been diagnosed with a bleeding disorder or bruise easily for no clear reason. This must be assessed before surgery; a haematology opinion may be requested.
You need a medical report for an application to an institution. The content of the report is set by the relevant institution's regulations; finding out in advance which document you need and sending it to us speeds up the process.

What affects the scope of the assessment

Most of the topics on this page mean not an extra fee but an extra consultation or a wait. These are the items:

Additional imaging or consultation: In a borderline case, asking the relevant doctor for a written opinion may be part of the plan.
Waiting time: Resolving a temporary barrier can take weeks; this affects the timeline, not the cost.
The price of a missed history: A history of bone medication that was skipped over, or inflammation that went unnoticed, can later turn into a much bigger intervention.
Reassessment: If an absolute barrier is time-limited, as with development or a course of treatment, a second assessment at a later date is part of the plan.

Frequently asked questions

Does an implant affect ritual ablution (wudu) or ghusl?

This is a religious matter, and it is best to get the answer from a qualified religious authority. The physical fact we can tell you is this: an implant is not a part that is taken out and put back, but a structure placed surgically in the jaw that stays there permanently once it has healed.

Do implants or missing teeth rule you out of military service, the police or MSÜ?

This is not a question for a dentist to answer; the relevant institution's health regulations define which conditions are considered acceptable, and they can change over time. You need to find out the current rule directly from the institution concerned or from an official source.

Does having implants stop you giving blood?

It is not a permanent barrier. After dental surgery, blood services usually ask for a short waiting period; it is best to ask the centre where you will donate for the exact period.

In which situations can an implant definitely not be placed?

There are few: a jawbone that has not finished developing, a history of high-dose intravenous bone medication or radiotherapy to the jaw, a severe bleeding disorder that has not been brought under control, and untreated active inflammation. Most other topics are risk factors, not barriers.

Are diabetes, smoking or age absolute barriers?

No. All three are risk factors; what matters is not the diagnosis itself but whether the condition is under control. We cover each of them in detail on separate pages.

I was told I do not have enough bone. Is that an absolute barrier?

No. It means that the volume a conventional implant looks for is not there; with a different planning approach, treatment can go ahead without a graft in most cases. The 3D CBCT scan decides.

Can implants be considered for a young person?

What matters is not age but whether the jawbone has finished developing. This is assessed on imaging; an implant placed while development is still going on can end up in the wrong position over time.

Sources

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Next step

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