Diabetes and dental implants

Two sentences cover most of what a patient with diabetes needs to hear about implants, and they point in opposite directions. Diabetes that is well controlled is a planning detail rather than an obstacle, and there is no good reason for it to keep anyone out of a treatment they need. Diabetes that is poorly controlled is a genuine surgical risk, because raised blood glucose affects both the way a wound closes and the way the body deals with bacteria in it.

The whole job, then, is establishing which of those two describes you at the time of surgery. That is not a judgement anyone makes by looking at you, and it is not something a clinic can responsibly skip in order to keep an enquiry moving.

What to send us	Why it is asked for
A recent HbA1c result	It shows average control over the previous months rather than one morning’s reading
The date that result was taken	An old result describes a patient who may no longer exist
Your medication list, with doses	Tablets, injections and newer combinations behave differently around a fasting appointment
A note or e-mail from your treating doctor	It says whether your control is where your own doctor wants it
Anything you know about your own healing	A history of slow-healing wounds or frequent infections changes the plan more than a number does

Controlled and uncontrolled are two different patients

The mechanism is not complicated. Persistently high glucose slows the cells that rebuild tissue, reduces the efficiency of the immune response at a wound and changes the small blood vessels that supply it. All three matter at exactly the moment an implant is trying to integrate.

When control is good, the effect on implant outcomes is small enough that it does not change what is offered or what is expected. When control is poor, the same surgery is a different proposition: healing is slower, infection is more likely, and a fixture that would have integrated in a different mouth may not. The kindest thing a clinic can do in the second case is delay rather than proceed, and say why in writing.

What we do not do is treat diabetes as a category that disqualifies anyone. A patient with well-managed type 2 diabetes is a more straightforward surgical case than a heavy smoker with none of it, and the smoker is rarely asked for paperwork.

What HbA1c tells us and what it does not

It is a three-month average, which is exactly why it is asked for instead of a finger-prick reading on the day. A single morning’s glucose tells us about that morning; HbA1c tells us whether the months before your flight looked like the months you are describing.

What it cannot capture is variability. Two patients with the same average can have very different days, and somebody whose levels swing widely is managing a harder situation than the average suggests. That is why the question about your own healing history is on the list: your experience of how your body deals with a cut, a chest infection or a dental abscess is information no laboratory value contains.

If your result is not where your own doctor wants it, the sequence is to improve it and then book, not to book and hope. Waiting three months to place an implant that will last twenty years is not a compromise, and it is a great deal cheaper than replacing a failed fixture with flights attached.

What changes in the planning and on the day

** Surgery earlier in the day suits most patients better: you are not fasting for long, your medication timing is less disturbed and you have the rest of the day to eat normally and monitor yourself.

** Nobody with diabetes should be sitting in a waiting room having skipped breakfast and taken a full dose of something. This is agreed in advance and written into your plan rather than improvised at reception.

** The timetable is often a little longer, which for a foreign patient means the gap between the two visits is set generously rather than optimistically. How that gap works is set out on our dental implants page.

** Closer review during healing, and a low threshold for wanting to see a photograph.

** Where there is also gum inflammation or untreated decay, that gets dealt with before a fixture goes anywhere near the bone, and in a mouth that needs several kinds of work at once the order is the plan. Mixed cases of that shape are costed and sequenced on full-mouth rehabilitation.

Type 1, type 2 and the medication question

Type 1 and type 2 are not the same condition and the distinction matters less here than people expect, because what governs the surgical decision is control rather than category. A person with type 1 diabetes and tight control is a lower-risk surgical patient than a person with type 2 and an HbA1c nobody has looked at for two years.

Medication matters for practical reasons rather than clinical ones. Insulin needs the appointment time and the meal schedule coordinated. Some tablet regimes carry a risk of glucose dropping if a meal is missed, which is an argument against a long morning of fasting rather than against surgery. Newer combination drugs are worth naming precisely on your form rather than described as “something for diabetes”, because the practical handling differs.

The other conditions that need the same conversation

** Almost never a reason not to operate and always a reason to plan. Tell us the drug and the dose; stopping it is usually the wrong move and is never a decision for a dentist alone.

** The route matters as much as the drug: tablets and infusions carry different levels of concern, and how long you have taken it matters more than the name. Disclose all of it.

** These shift the healing timetable and raise the infection question, so they change the follow-up schedule and sometimes the sequence.

** Relevant to the anaesthetic and to the appointment rather than to the implant. Controlled, it is a note on the file.

** This one genuinely changes what is possible and how, and it needs the full history including dose and site before anything is planned.

** Elective surgery and X-rays are deferred, so tell us and the timing is arranged around it rather than around the calendar.

The general assessment those all feed into is set out on whether you are a candidate for implants.

FAQ

Can diabetics have dental implants?

Yes, and success rates in patients with good control are close enough to those in patients without diabetes that it does not change what is offered. The conditions are that control is genuinely good, that it stays good through the healing months, and that gum health and any active infection are dealt with before surgery rather than alongside it. The honest caveat is the other end: where control is poor and nobody is addressing it, implants are the wrong purchase and a clinic that takes the money anyway has not done you a service.

Will you refuse to treat me if my HbA1c is high?

We will not refuse you as a patient. What we will do is tell you plainly that the surgical date should wait until your control improves, put that in writing, and price the plan so it is ready when you are. Many patients find that useful rather than frustrating: a written plan with a clear medical precondition is something you can take to your own doctor as a reason to get the number down. What we will not do is place a fixture into a situation where we expect it to fail.

Do I need my doctor’s permission?

Permission is the wrong word, and a short note is genuinely useful. What we want is your treating doctor’s view on whether your control is where they want it, and any specific instruction about medication around a surgical appointment. It takes an e-mail and it means nobody is guessing.

Does diabetes affect how long the implant will last afterwards?

Control matters after the crown is fitted as well as before, because the tissue around an implant is more vulnerable in a patient whose glucose runs high, and that tissue is what protects the bone underneath. In practice this means the cleaning routine and the annual check are less optional for you than for the average patient, and it means telling us if your control changes significantly in the years after treatment. It is a reason for slightly closer maintenance, not a reason to expect a shorter life from the implant.

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