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Published 5 September 2026·Dr. Gabriel Joel, DMD

His Cardiologist Told Him to See a Dentist

Quick answer: Gum disease and cardiovascular disease are consistently associated in large studies. Whether treating one improves the other is much less certain. Treating gum disease is worth doing on its own merits — and it is worth being sceptical of anyone who promises it will protect your heart.

The call

The referral letter was two lines long and did its job: Please assess and treat periodontal disease. Patient counselled re inflammatory burden.

Ezra, 61, from Migdal HaMayim, had had a stent placed four months earlier. His cardiologist had looked in his mouth — which not many do — and did not like what she saw.

He arrived with a direct question: is this real, or is it something dentists say to sell treatment?

That deserves a straight answer, and the honest one has two halves.

What we found

Generalised periodontitis. Pockets of 5 to 8mm across most of the mouth, bleeding at about 70 per cent of sites, bone loss of a third to a half. Two molars were mobile. He also had type 2 diabetes, reasonably controlled, and had smoked until his fifties.

What the evidence supports. People with periodontitis have a measurably higher rate of cardiovascular events than people without, and the association holds after adjusting for the obvious shared risk factors — smoking, diabetes, age, social factors. It is a large and consistent body of observational work.

There are plausible mechanisms. Periodontitis maintains a chronically inflamed, ulcerated surface area inside the gum pockets through which bacteria and inflammatory mediators enter the bloodstream. Markers of systemic inflammation such as C-reactive protein run higher in people with untreated periodontitis and fall after treatment. Oral bacteria have been recovered from atherosclerotic plaques.

What the evidence does not support. That treating gum disease has been shown to reduce heart attacks or strokes. The trials that would answer that — large, long, randomised — have not been done, and probably will not be, for practical and ethical reasons. Treatment reliably lowers inflammatory markers; whether that translates into fewer events is unproven.

So the accurate position is: strong association, plausible mechanism, unproven benefit from treatment. Anyone telling you that a deep cleaning will protect your heart is going beyond what is known.

None of which is a reason to leave his mouth alone. He had advanced gum disease that would cost him teeth. That is sufficient.

There is also a firmer link worth mentioning, because it applied to him. The relationship between periodontitis and diabetes runs both ways and is better established, with treatment producing a modest but real improvement in glycaemic control.

What we did

Four quadrants of deep cleaning under local anaesthetic, extraction of one hopeless molar, and three-monthly maintenance.

We wrote back to the cardiologist with findings, treatment and the reassessment result — the loop she had started deserved closing.

We also checked his medication list for anything affecting the gums, and confirmed with her whether antibiotic cover was needed for the cleaning. It was not; a stent is not an indication.

The outcome

Pockets reduced to 3 to 4mm at reassessment, bleeding down to about 15 per cent. His HbA1c improved slightly over the following year, alongside changes his diabetes team had made.

Whether any of it affected his heart, nobody can say. He kept eleven teeth that were heading out.

What to do if this happens to you

  1. Treat gum disease because of your gums, and regard any systemic benefit as a possible bonus.
  2. Tell your dentist about heart conditions, stents and medications. It changes planning.
  3. Ask whether you need antibiotic cover. Most cardiac patients no longer do.
  4. Be sceptical of strong claims in either direction. The association is real; the treatment benefit is unproven.
  5. Mention diabetes. That link is better established and runs both ways.
  6. Ask your dentist to write to your doctor. Joined-up care is worth more than either alone.

Referred by your doctor for gum treatment? Ramat Beit Shemesh Urgent Dental Care works with your medical team. 055-985-8845 · WhatsApp https://wa.me/972559858845 · Harav Kook 28/1, Beit Shemesh

This is a composite clinical story. It reflects a presentation we see regularly in Beit Shemesh and Ramat Beit Shemesh; the name and details are illustrative and are not those of a real patient.

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