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Should Every Operatory Be Universal? The Truth About Dental Office Design

October 17th, 2025

2 min. read

By Dr. David Ahearn

Over the last couple of decades, a big trend has taken hold in dentistry: The universal treatment room.

One operatory designed to handle any procedure, any time. Sounds pretty good, right?

Simple. Flexible. Less complicated.

And honestly, there’s a lot of logic to it. It’s easy to see why doctors like the idea.

But here’s the real question: Does a universal setup always make the most sense for your dental practice?

We’ll look at the advantages and disadvantages of universal rooms and compare them with purpose-built approaches like dedicated hygiene operatories. By the end, you’ll know exactly how to design treatment rooms that maximize efficiency, boost production, and make your patients more comfortable without wasting valuable space.

The Minivan Analogy

Think of it this way: what’s the ultimate “universal” car? The minivan.

It does everything. But if you’re looking for performance, efficiency, or even pride of ownership… You might want something more specialized.

Universal dental rooms are kind of the same. They offer flexibility, but depending on your goals, they may not always be the best fit.

What are the Advantages of Universal Treatment Rooms?

  • They’re easier to schedule. In theory, any patient can go in any room.

  • They’re easier to stock. Everything’s the same.
  • And they make it easier to do same-day dentistry.

Those are real benefits. But let’s look at the flip side.

What are The Disadvantages of Universal Treatment Rooms? 

  • Universal rooms used for Hygiene aren’t usually stocked “universally” (even though they should).
  • Same-day dentistry? Honestly, it’s often a crutch for bad scheduling.
  • And when we ask highly functional practices how often hygiene rooms actually get converted into restorative rooms, the answer is less than 10% of the time.

So the promise of “any room, any time” doesn’t always play out in reality.

When do Universal Rooms Make Sense for my dental practice?

If you’re building an office with plenty of space and budget, universal rooms may be the easier option.

They simplify scheduling, make stocking straightforward, and create a uniform experience across the practice. Universal rooms can be a smart move for practices that want operational consistency and don’t need to squeeze in extra chairs.

When do Dedicated Hygiene Rooms Make Sense for your dental practice? 

On the other hand, if your practice is space-constrained, increasing room count often matters more than universality.

For example: Would you rather have five universal rooms or seven rooms with two or three dedicated to hygiene? If space is tight, most doctors would choose the higher room count.

That’s because hygiene accounts for around 60% of foot traffic in a typical GP office. Dedicating space to where the majority of production happens can make sense.

What Makes a Great Hygiene Room?

Here’s the key: hygiene is almost always a two-hand function.

If you stick that inside a 10-foot-wide universal room, you’re wasting space. But a narrower, purpose-built hygiene room is far more efficient. Of course, you still need the right tools within reach: your handpiece, scaler, and consultation space.

But when designed right, these smaller rooms actually give you more capacity in the same building footprint. And yes, hygiene rooms can still handle operative or surgical cases when you need them.

And it’s not like dentistry hasn’t already embraced this idea:

  • Oral surgery rooms are built differently for anesthesia and space needs.
  • Orthodontic bays are laid out differently (though we’ve got even better ways to design those today).
  • Consultation rooms can be hybrids that combine treatment and planning.

The Bottom Line

Both universal rooms and dedicated hygiene rooms have their place.

If space is limited, prioritizing room count with some dedicated hygiene rooms can make more sense.

Universal rooms may be the better fit if you have plenty of space and want easy management.

The key is aligning your operatory design with your practice’s goals, constraints, and growth plans. At Design Ergonomics, we’ve worked with thousands of practices to help them strike the right balance, whether that means universal rooms, dedicated spaces, or a combination of both.

So if you’re planning a new office, expanding, or just trying to make your current space work harder, reach out to us. We’ll help you design a setup that maximizes flow, efficiency, and patient comfort.

Dr. David Ahearn

With over three decades of expertise in cosmetic and restorative dentistry, Dr. David Ahearn is a nationally recognized leader, educator, and innovator. His passion for cutting-edge technology and exceptional patient care is the driving force behind everything we do. As the founder of Design Ergonomics and Ergonomic Products, Dr. Ahearn has dedicated his career to designing, equipping, and training North America's most efficient and productive dental offices. His proven strategies help hundreds of practices reduce stress, boost productivity, and build sustainable, scalable growth each year. A speaker and educator, Dr. Ahearn continues to shape the future of dentistry, empowering thousands of dentists to transform their practices, improve the quality of life for their teams and families, and deliver outstanding care to their communities.

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