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What a Bachelor Party Can Teach You About Your Patient's Heart

By Dr. Hugh Coyne

Advanced lipid markers — ApoB and Lp(a) — explained simply, and why the cholesterol story most standard panels miss belongs in your dental chair.

You've likely had this case. The patient whose perio doesn't respond the way you might expect. The implant that fails to integrate cleanly. The healing that takes twice as long as it ought to. You've reviewed the technique, the hygiene, the systemic history, and something still doesn't add up.

There's often a story behind those cases, and it's frequently a cardiovascular one. The same biology that drives atherosclerosis, chronic inflammation, lipid dysfunction, and vascular compromise is the biology that determines how well your patients heal, how their bone responds, and how predictably your treatment outcomes hold up over time.

Understanding that biology is one of the highest-leverage things you can do as a dentist. It changes the patients you can confidently treat. It changes the conversations you have at a consultation. It changes case acceptance for the higher-value work, because patients who understand the systemic stakes of their oral health say yes more often, more readily, and to bigger plans. And it changes how you're positioned in a market where the practices growing fastest are the ones treating patients as whole people rather than as mere mouths.

The starting point for that conversation is cholesterol, and specifically, the parts of the cholesterol picture most patients (and most standard panels) are missing entirely.

Let me explain using the unique example of a bachelor party.

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Read the bloodwork, the heart, and the new weight-loss drugs.

Good Cholesterol and Bad Cholesterol Is an Incomplete Story

Most patients (and most clinicians, frankly) think of cholesterol as having a good kind and a bad kind. That's the traditional framing, but it leaves out the most important part. The cholesterol itself is all chemically the same. What matters is how it's packaged.

Standard lipid panels measure the concentration of LDL, the so-called "bad" cholesterol. But what really predicts cardiovascular risk most reliably is the number of atherogenic particles circulating in the blood. That's a different number, and it's captured by a marker called Apolipoprotein B, or ApoB. A patient can have a "normal" LDL and yet have an elevated ApoB, and the risk lies in that gap.

Here's where the bachelor party comes in.

Picture the Artery as a Street

Imagine the lining of an artery as a strip of bars and clubs on a busy street. HDL particles — the "good" cholesterol are a little like cruise ship tourists. They wander around behind a guide who holds a little flag. They wander around, and they don't cause any trouble. They don't even try to get into the bars.

LDL particles are different. They're a bachelor party. A bachelor party can't get past the bouncer on the door. So, what does the best man do? He hires a local fixer. That fixer is ApoB. ApoB is the molecule that lets cholesterol particles cross into the endothelium, the lining of the artery, where, like any bachelor party that's made it past the rope, they proceed to wreck the place.

That's the mechanism behind atherosclerosis, simplified. And it's why ApoB is more useful than LDL alone. You're not just counting cholesterol, you're counting the particles that can actually get inside and cause damage. The target most lipidologists now use is an ApoB below 0.8 g/L.

And Then There's the Small Bachelor Party of Three

There's another particle worth knowing about, and I'd argue every clinician should have their own level checked at least once. It's called lipoprotein little a, written Lp(a). It's small, highly atherogenic, and around 90% genetically determined.

In the bachelor party analogy, think of Lp(a) as a party of three guys, all of whom are complete troublemakers and almost guaranteed to start something. You don't need many of them to do real damage. Because Lp(a) is genetic, it should be tested at least once in a lifetime. If it's elevated, that information changes the entire conversation about cardiovascular risk and changes how aggressively other modifiable risk factors should be managed.

Most people will never have it tested, because it isn't part of the standard panel. Their dentist is often the only clinician they see consistently enough to surface the question.

Why This Story Belongs in Your Chair

Dentists are already extraordinarily good at the things this kind of work depends on. You take detailed histories, better than most physicians, in my experience. You see patients regularly, often two or three times a year. You know their faces, their kids, their habits. And you're looking inside their mouths, which happens to be one of the most informative biological windows on the human body.

What that adds up to is a clinical position medicine struggles to replicate. A British Dental Journal service evaluation on opportunistic cardiovascular screening in dental practices found that the majority of patients screened had at least one out-of-range result. Most of them. Around 87% of patients, when surveyed, said they thought it was important or very important that dentists screen for conditions like diabetes. About 80% were happy to undergo finger-prick testing in the dental chair. They're already getting injections in the mouth, so a finger prick is the easy part.

None of this means you need to start running a cardiology clinic with crowns and composite. It means the well patient in your chair is bringing a story their physician may not have time to hear, and you're sitting in the best seat to notice the first chapter.

Where to Start

If integrating some basic cardiovascular awareness sounds reasonable, but you're not sure how to begin, then I would suggest not starting with everything. Begin with one or two things that change what you do with the patient in front of you.

That might be a blood pressure cuff in the operatory and a clear protocol for what to do with elevated readings. It might be a question about when bloods were last done and what was tested. It might be building a referral relationship with a local family medicine practice or concierge practice before you need it, because the value of catching something early depends entirely on what follow-up the patient receives.

As to the question of stepping on toes with medical colleagues, when the patient's best interests are at the center, the rest tends to sort itself out. A rising tide raises all boats. The great physicians and the great dentists agree on this: patients deserve more chances to detect disease early, not fewer.

If You Want the Full Picture

This article touches on one part of a much bigger conversation: advanced lipid markers, cardiovascular screening, the oral microbiome's role in atherosclerosis, and the practical referral and communication tools that turn an interesting idea into a working part of your clinical day.

That's exactly what Dr. Lucy Hooper and I are teaching in our 3-part live course, Dentistry & Whole-Body Health. Session 2 — Cardiovascular Clues — is the cardiovascular deep dive: lipidology in a dental context, the oral microbiome and the heart, and practical in-practice screening protocols. You'll leave with cardiovascular referral templates, lab interpretation guides, and patient education resources you can use immediately.

The full series is 9 AGD-PACE-approved CE credits across three live sessions, each with 30-day recording access.

Dentistry & Whole-Body Health

Dr. Hugh Coyne and Dr. Lucy Hooper teach the cardiovascular deep dive — advanced lipids, the oral microbiome and the heart, and in-practice screening — in Dentistry & Whole-Body Health (Session 2: Cardiovascular Clues).

  • Read bloodwork through a dental lens
  • Catch systemic risk before it surfaces
  • Refer high-risk patients with confidence
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Wellness Dental Forum 2026

Dr. Hugh Coyne is speaking on blood work in dentistry at the Wellness Dental Forum. Don't miss his session, "Blood Work and Dentistry: A Missing Piece in Comprehensive Care."

Oct. 17-18. Online. Register
Dr. Hugh Coyne

About Dr. Hugh Coyne

Dr. Hugh Coyne is a London-based GP and co-founder of Coyne Medical, a prevention-first private family practice he runs with Dr. Lucy Hooper. He trained at Imperial College London and holds postgraduate diplomas in obstetrics & gynaecology, child health, and sports & exercise medicine. He is the son of a paediatric dentist.

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