The Danger of Extrapolation

August 3, 2026
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What works for one patient, one country, or one dental practice may fail completely in another

I don’t have tonsils.

Like many children of my generation, I suffered from recurring sore throats, allergies, asthma, and airway problems. Removing my tonsils seemed like a reasonable solution.

Then medical articles raised the possibility of a connection between tonsillectomy and Hodgkin lymphoma.

It doesn’t take much to scare the public, or malpractice fearful medical professionals.

Put tonsillectomyHodgkin lymphoma, and possible link in the same headline, especially in a respected journal like The Lancet, and possibility quickly becomes probability. By the time researchers account for the other variables, fear has already hardened into belief.

Thats the danger of extrapolation.

It wasn’t until a 1987 analysis showed that prior tonsillectomy was unlikely to be a causal factor that tonsillectomies very slowly began to be accepted.  The impact of the original article lingers to this day.

The Extrapolation Trap

We observe something in one group, under one set of circumstances, and assume it applies to everyone.

Dentistry does this all the time.

A dentist hears that another practice dropped every PPO and became more profitable.

“Let’s do that.”

Someone hired an associate and reduced the owner’s clinical schedule.

“Let’s do that.”

Another practice doubled its new patients through digital marketing, added sleep apnea treatment, bought new technology, or moved into a larger facility.

“Let’s do that.”

Perhaps.

But what else was true?

Did that dentist already possess strong community authority? Was the practice financially prepared to leave insurance? Was the team capable of handling more patients? Did the associate have enough demand to remain productive? Did the new service fit the doctor’s interests, market, and patient base?

The visible action is rarely the entire cause of the result.

Extrapolation is not diagnosis.

A strategy that liberates one dentist may imprison another.

More patients can produce growth—or overwhelm the team and diminish the patient experience.

Leaving insurance can restore clinical control—or create a cash-flow crisis.

Hiring an associate can create freedom—or add payroll, management headaches, and empty chair time.

The advice may be sound.

It may simply be sound for someone else.

Thats why The Liberated Practice doesn’t begin with a predetermined prescription. We begin with the destination.

What does this dentist actually want the practice to provide?

More profit? More time? Less dependence on insurance? A stronger eventual sale? A smaller practice with fewer, better-fit patients? A larger organization that can flourish without the owner?

Those destinations require different roads.

Then we consider the variables: the doctor’s age, temperament, risk tolerance, finances, market, reputation, team, patient base, systems, and existing sources of authority.

Only then should anyone prescribe growth, simplification, expansion, delegation, or insurance independence.

The goal isn’t to reproduce the practice I or anyone else built.

Its to help each dentist build the best version of his or her own.

Extrapolation’s Consequences

The cause of many failed practice-improvement efforts isn’t necessarily bad advice.

Its good advice extrapolated from the wrong circumstances.

The consequence is predictable: money is spent, systems are added, teams are disrupted, and the dentist works harder without getting closer to the desired life.

Dentists would never knowingly treat patients that way.

We shouldn’t treat their practices that way either.

First, understand the destination.

Then consider all the variables.

Then design the prescription.

Because extrapolation is not diagnosis.

One More Variable Worth Considering

The coming Sleep Apnea Awareness Boom is a perfect example of why a single prescription is never enough. It would be easy to hear “new pill, millions of newly diagnosed patients” and conclude that every dentist should simply start making oral appliances.

But the real opportunity depends on the variables: your market, your clinical interests, your physician relationships, your team, your existing revenue streams, your positioning—and whether patients searching AI after receiving a diagnosis will ever find you.

That’s what I’ll be exploring in my free webinar next Friday, August 7 at 11:00 AM Eastern:

The Sleep Apnea Awareness Boom: One of Dentistry’s Greatest Opportunities—If You’re Prepared

This isn’t only for dentists already practicing dental sleep medicine. In many ways, it may be even more important for general dentists who want to understand where the patient conversation is going—and how to enter it before someone else does.

Reserve You Place Here

Because opportunity, like treatment, depends upon understanding all the variables.

Michael

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Dr. Michael Goldberg is one of the leading educators on dental practice management in the United States.

Michael ran and sold a prestigious group practice in Manhattan and has been on Faculty at Columbia University and New York-Presbyterian Medical Center for 30 years including Director of the GPR program and Director of the course on Practice Management.

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