Who can have an implant – and who cannot?

Bone, gums, general health: what an implant really requires, which conditions and medicines matter, why there is no upper age limit and what remains if it is not possible.

Most adults can have an implant. Three things are needed: enough load-bearing bone in the right place, healthy or treated gums, and a general condition that allows a minor surgical procedure. Advanced age is no argument against it; jaw growth that is not yet complete is. Almost everything else that stands in the way can be treated beforehand – a “no” then often becomes a “later”.

The three requirements

An implant needs bone to hold it, tissue that seals around it, and a body that can heal. All three can be assessed before the procedure: the bone on the X-ray, the gums in the clinical findings, the general condition in conversation and, where appropriate, with the family doctor.

When there is not enough bone

If a tooth has been missing for some time, the bone in that place recedes – it is no longer being loaded. Too little bone is therefore the most common reason why an implant cannot be placed straight away. It is rarely an obstacle: bone can be built up, with the patient's own material or with substitute material, and in the upper jaw by raising the floor of the sinus. Sometimes a shorter or narrower implant is enough.

Gums: treat first, then implant

Untreated periodontitis is a genuine obstacle. The bacteria that destroy the natural attachment of a tooth find the same conditions at an implant – but without the defences a natural tooth brings with it. Anyone with periodontitis therefore receives periodontal treatment first; after that an implant is possible, but it calls for closer follow-up care.

General illness: what really rules it out

The number of conditions that rule out an implant outright is small. Most are not an exclusion but a condition attached: they call for preparation, consultation with the treating physician and closer monitoring.

diabetes: no obstacle when well controlled, a clear risk when poorly controlled
cardiovascular disease: usually feasible, often after consultation
ongoing radiotherapy in the jaw or facial region
chemotherapy or a weakened immune system during treatment
serious disorders of blood formation or wound healing

Medicines that matter

Two groups are important, and both belong in the conversation before planning starts. Drugs against bone loss from the bisphosphonate group and related substances can impair healing of the jawbone – particularly when given by infusion. Blood thinners do not make a procedure impossible, but they call for planning. What matters is that the practice knows the complete list of medicines, over-the-counter ones included.

Smoking

Smoking is not a reason for exclusion, but it is the best documented avoidable risk factor. It worsens the blood supply to the tissue and thus healing; implants are lost more often in smokers, and inflammation occurs more frequently. Stopping before the procedure and during the healing phase improves the outlook markedly.

Age: no upper limit

For older people there is no upper limit; what counts is the state of health, not the year of birth. There is very much a lower limit: as long as the jaw is still growing, implants are not placed, because the implant does not grow with it and would later no longer be level with the neighbouring teeth. Growth is usually complete around the age of eighteen, in some people later.

Implants are suitable for almost any adult

What remains if an implant is not possible

If something rules it out for good, the gap is not left unrestored. A bridge, a partial denture or a full denture are proven solutions, and where a denture no longer holds there are intermediate options using a few implants in places with good load-bearing bone.

Does the number of missing teeth matter?

For the question of whether an implant is possible, hardly; for the planning, a great deal. A single missing tooth is usually replaced with one implant and a crown. Where several are missing, a bridge on two implants often carries several teeth. If a jaw is completely toothless, four to six implants are frequently enough for a fixed restoration, and even two implants anchor a loose denture considerably better.

Fear of the procedure

Fear is not a reason for exclusion but a point for planning. An implant is placed under local anaesthetic and is as a rule less of a burden than many expect. Anyone who does not feel up to it can have the procedure done under sedation or general anaesthetic; that simply calls for different preparation and a suitable appointment.

How it is established whether it is possible

It begins with the clinical findings and an X-ray. For simple cases an overview image is enough; where space is tight – close to the sinus, close to the nerve – a three-dimensional image shows how much bone is really there. Only then can it be said whether an implant is possible, whether bone has to be built up first and what effort to expect.

Who can answer the question

Whether an implant is possible in an individual case is decided not by a text but by a clinical examination. The directory on this portal lists practices with a focus on implantology, arranged by location and qualification, without ranking and without rating.

Answered briefly

Frequently asked questions

Who can have a dental implant?

Most adults. What is needed is enough load-bearing bone in the right place, healthy or treated gums and a general condition that allows a minor surgical procedure. Whether that applies is shown by an examination with clinical findings and an X-ray – the question cannot be answered from a distance.

Is an implant possible without sufficient bone?

Not straight away, but usually later. Too little bone is the most common reason for a delay and rarely a final obstacle: bone can be built up with the patient's own material or with substitute material, and in the upper jaw by raising the floor of the sinus. Sometimes a shorter or narrower implant is enough.

Does periodontitis rule out an implant?

No, but it has to be treated first. The bacteria that destroy the attachment of a tooth find the same conditions at an implant, without the defences of a natural tooth. After successful periodontal treatment an implant is possible; it then calls for closer follow-up care with regular cleaning and checks of the pocket depths.

Is there an age limit for dental implants?

Not an upper one – what counts is the state of health, not the year of birth. There is a lower one: as long as the jaw is growing, implants are not placed, because an implant does not grow with it and would later no longer be level with the neighbouring teeth. Growth is usually complete around the age of eighteen, in some people later.

Which medicines does the practice need to know about beforehand?

All of them, including over-the-counter ones. Two groups matter most: drugs against bone loss from the bisphosphonate group and related substances, because they can impair healing of the jawbone, and blood thinners, because the procedure is then planned differently. Neither rules out an implant, but both change the approach.