The 40-Year Safety Record: What Aviation Taught Me About Preventing Catastrophic Mistakes in Medicine
Jun 17, 2026I want to tell you something that most people in my profession would never admit publicly.
For nearly forty years, I have operated in an environment where a single oversight can produce a catastrophic, irreversible outcome for a patient. My practice runs multiple procedures simultaneously, fields hundreds of emails a day, and operates with six clinicians working at the same time.
By every statistical measure, something should have gone catastrophically wrong by now. A wrong tooth extracted. A wrong medication administered. A critical step skipped under pressure.
Not once. Not in forty years.
For a long time, I credited that record to rigorous training and professional discipline. Then I realized I was wrong — and that realization fundamentally changed how I lead my practice, my team, and myself.
The Flaw at the Heart of Modern Expertise
Here is the uncomfortable truth that most high-performing professionals never confront: expertise does not protect you from catastrophic error. Under the right conditions, it may actually make you more vulnerable.
We build careers on the assumption that accumulated knowledge is a sufficient shield against failure. We construct hierarchies of authority designed to enforce accountability. We train harder, certify more, and trust that our experience will hold when the pressure spikes. And then, in the middle of a chaotic afternoon — phones ringing, schedule overloaded, team stretched thin — the most experienced person in the room makes the most elementary mistake imaginable.
This is not a failure of intelligence or dedication. It is a failure of system design. The human brain, under sustained pressure, is fundamentally unreliable as a safety mechanism. Memory degrades. Attention fractures. And the more senior the professional, the more likely they are to be interrupted mid-task, trusted to proceed without verification, and surrounded by team members who are too intimidated to speak up when they notice something wrong.
The traditional hierarchy that is supposed to prevent disasters is often the very structure that allows them to happen in silence.
What Aviation Figured Out — and Medicine Was Slow to Learn
The solution I adopted did not come from a medical journal. It came from the aviation industry.
Commercial aviation faced the same crisis decades ago. Highly trained, experienced pilots were making fatal errors — not because of mechanical failure, not because of inadequate skill, but because of simple human oversights that occurred under pressure. The industry's response was not to train pilots harder. It was to build a system that does not rely on human memory at all.
Pilots today work through a pre-flight checklist of between 100 and 200 individual verification items before a plane leaves the tarmac. Every single item on that list exists because a past failure or accident made its necessity undeniable. The checklist is not a sign of distrust in the pilot's expertise. It is an acknowledgment that expertise alone is never enough when the stakes are absolute.
I brought that same philosophy into my dental practice. And it changed everything.
The Checklist System That Has Produced a 40-Year Flawless Record
The specific protocol I use before every extraction procedure has four sequential steps, and none of them can be skipped regardless of how busy the day is or how routine the procedure appears.
First, before I enter the operatory, my nurse independently confirms the patient's identity, the specific tooth to be treated, whether the patient has taken any required pre-medication, and whether they have arranged a ride home if sedation is involved. This step happens without me in the room — it is a completely independent verification.
Second, I enter, review the chart personally, and visually examine the patient's mouth to confirm that the planned procedure is consistent with what I see clinically. I do not rely on my memory of a previous appointment. I verify in real time.
Third, I verbally confirm the specific tooth number with my nurse. Out loud. Every single time. Even for the most experienced team members, this verbal cross-check creates a final opportunity to catch a discrepancy before it becomes irreversible.
Fourth, I confirm the procedure directly with the patient in plain language: "We are removing your lower left first molar today — is that correct?" The patient becomes the last line of verification in the system.
This four-step sequence takes less than two minutes. It has never once felt unnecessary. And in forty years, it has never failed.
The Cultural Shift That Nobody Expects
The checklist itself is only half of the transformation. The other half is what happens to the team culture when you implement it correctly.
In most medical and dental practices, there is an unspoken hierarchy: the doctor is the authority, and junior team members do not correct the senior clinician. This dynamic feels professional and respectful on the surface. Beneath the surface, it is a patient safety catastrophe waiting to happen. When a nurse sees a discrepancy and says nothing because she is afraid of embarrassing the doctor, the system has already failed.
When I implemented my checklist protocol, I made one non-negotiable rule explicit to every member of my team: anyone in this room has not just the right but the obligation to stop a procedure if they believe something is wrong. A nurse who catches an error and speaks up is not being insubordinate. She is doing exactly what I need her to do. I will never be too important, too experienced, or too busy to be corrected.
Flattening that hierarchy — deliberately and publicly — transformed the culture of my practice. My team became active participants in patient safety rather than passive observers. The burden of preventing catastrophic error shifted from resting entirely on my memory to being distributed across every person in the room. That is a far more resilient system than any individual, regardless of their experience level, could ever be alone.
We also extended the checklist philosophy beyond clinical procedures. We use structured protocols for prescription writing, for opening and closing the office, for how the waiting room music is selected, and for staff uniforms and presentation. Consistency in the small things builds the habit of consistency in the critical things. The practice that runs like a well-rehearsed performance on an ordinary Tuesday is the practice that does not fall apart under pressure on an extraordinary one.
How to Start — Even If You Are Not a Dentist
The checklist principle applies to any organization where the cost of error is high and the environment is complex. Whether you run a medical practice, a law firm, a financial advisory, or a large business team, the same dynamics are at work: pressure degrades memory, hierarchy silences correction, and the absence of a system means you are betting your reputation on human reliability under stress.
Here is how I recommend starting:
Begin with your highest-risk, most repetitive procedure. Identify the single process in your practice or business that, if executed incorrectly, would produce the most serious consequence. Write down every step that must occur, in sequence, for that process to be completed correctly. Do not rely on what you think happens — observe what actually happens and document it.
Make the checklist non-negotiable, not optional. A checklist that can be skipped when things get busy is not a safety system. It is a suggestion. The leader must model and enforce the protocol, especially under pressure, because the moments when it feels most inconvenient are precisely the moments when it is most necessary.
Explicitly empower your team to speak up. Tell your team directly, in a team meeting, that catching and correcting an error before it happens is one of the most valuable things they can do. Remove the social penalty for raising a concern. The nurse who stops a wrong-tooth extraction is not a problem. She is the system working exactly as designed.
Build from simple to complex. Start with one checklist for one procedure. Once it becomes habitual, expand it. The goal is not a binder of protocols that nobody reads. It is a culture of verification that becomes second nature.
Forty years of practice. Thousands of procedures. One mechanism that has never once let me down.
The checklist is not a sign of weakness or self-doubt. It is the most honest acknowledgment a professional can make: that the patients who trust me with their care deserve a system that is more reliable than my memory on my worst day. Building that system was the best professional decision I ever made. And it cost me nothing but the willingness to admit that expertise, on its own, is never enough.
