Something significant happened in dental technology this year, and it didn’t arrive with a press release or a trade show announcement. It showed up in the data: US dental practices now have more 3D printers than milling machines for in-office production.
According to Inside Dentistry’s research, 15 percent of American dental practices now have at least one dental 3D printer. AM Research puts that at approximately 30,000 printers in practices alone—and that number is growing faster than mill installations.
This isn’t a prediction about where the industry is heading. It’s a description of where the industry already is.
If you’re still weighing whether to add 3D printing to your practice—or if you’re running a mill and wondering whether the switch makes sense—here’s what the data says.
Mill vs 3D Printer: The Economics Are Decisive
Let’s start with money, because that’s where the conversation usually begins.
Initial investment for a quality dental 3D printing setup is a fraction of the cost of a comparable milling system—and the gap in ongoing costs is even wider.
But the upfront cost is just the beginning. Materials tell an even more compelling story.
3D printing materials cost significantly less than milling blocks for comparable applications. Where a milling block might run you $25-40 for a single crown, the resin cost for a printed crown runs under $5.
And time is money. The same research found that printed dentures save 154 chairside minutes per patient compared to milled alternatives. At typical practice overhead rates, that time savings alone pays for a lot of resin.
Beyond Cost: The Versatility Factor
Economics would be reason enough to consider the switch, but the advantages don’t stop at the spreadsheet.
A milling machine does one thing well: it carves subtractive restorations from solid blocks. That’s valuable, but it’s limited. Crown prep. Maybe some inlays and onlays. The occasional bridge framework.
A 3D printer handles a dramatically broader range of applications. With the same Pro 2, you can produce surgical guides, night guards, dentures, orthodontic models, sports guards, crown models, and more. Add Midas and you’re into chairside permanent restorations.
This versatility changes the ROI calculation entirely. A mill needs to produce enough restorations to justify its cost. A printer can generate revenue across a dozen different application types—and each new application improves the return on your initial investment.
Practices that start with surgical guides often expand into night guards. Night guard production leads to sports guards. Sports guards lead to orthodontic models. Before long, the printer is running daily across multiple workflows, each one contributing to practice revenue.
The Maintenance Reality
Anyone who’s operated a milling machine knows the maintenance burden. Spindles wear. Burs need replacement. Calibration drifts. The internal mechanisms that spin at tens of thousands of RPM require regular attention and occasional expensive repairs.
3D printers have maintenance requirements too, but they’re fundamentally simpler. No spinning parts. No cutting tools to replace. The consumables are the build platform and resin tank—both inexpensive and easy to swap.
When a mill goes down, you’re often waiting for a service call or shipping parts. When a printer needs attention, you’re usually looking at a quick component replacement you can handle in-house.
This maintenance difference affects more than just repair costs. It affects reliability. The more moving parts in a system, the more potential failure points. Printers win on simplicity.
Mill vs 3D Printer: Which Offers Better Quality?
The historical argument for milling was quality. Mills produced restorations with proven accuracy and marginal integrity. Printed restorations were newer, less tested, potentially inferior.
That argument has expired.
Modern dental printers deliver accuracy that matches or exceeds milling for most applications. The optical systems in current-generation printers produce layer resolutions finer than clinical requirements. The materials have caught up too—hybrid ceramics, high-strength resins, and biocompatible formulations that meet or exceed the performance of milled alternatives.
For certain applications, printing actually offers advantages milling can’t match. Complex geometries that would require multiple milling setups produce in a single print run. Internal structures that can’t be machined substractively—like latticed frameworks for reduced weight—are straightforward in additive manufacturing.
Quality is no longer a reason to choose milling. At this point, it’s barely a reason to choose between specific printer models.
Workflow Integration
Here’s something that often gets overlooked in the mill-vs-print discussion: printing integrates better with modern digital workflows.
Milling machines evolved from an era of physical impressions and outsourced lab work. They were designed as standalone production units. You designed something, sent it to the mill, and collected the finished product.
3D printers evolved alongside digital scanners, cloud-based design software, and connected practice management systems. They’re built for integration from the start.
With a modern printing workflow, a scan goes directly to design software, design files queue directly to the printer, and print status updates feed back to your practice management system. The whole process can be monitored and managed from a single interface.
This connectivity matters for efficiency—fewer manual steps, fewer handoff points, fewer opportunities for error. It also matters for scaling. When you’re running multiple printers across different applications, centralized management becomes essential.
What About Speed?
The one area where milling historically claimed an advantage was speed for single-unit restorations. Pop in a block, carve a crown, done in 15-20 minutes.
That advantage has narrowed considerably. Modern printers with optimized settings produce crowns in comparable timeframes. The SprintRay Arch Kit specifically optimizes for single-patient applications, delivering industry-leading speed for small-batch production.
And printing offers a different kind of speed advantage: parallelism. A mill produces one restoration at a time. A printer can produce multiple restorations simultaneously—different patients, different applications, all in the same print run.
For practices with any volume, this parallelism more than compensates for any per-unit speed difference. While your competitor’s mill is finishing crown number one, your printer is completing crowns one through six.
The Transition Isn’t Hard
If you’re currently running a mill, the switch to printing doesn’t require abandoning your existing knowledge. The design principles are the same. The file formats are compatible. What changes is the production step—and that change is mostly simpler, not harder.
Most practices that make the transition report their team adapts within days, not weeks.
The 15 percent of practices that already have printers aren’t early adopters anymore. They’re just practices that decided before their competitors did.
Make sure you’re one of them.