Chairside 3D printing has moved from niche technology to practical clinical tool in a relatively short period. Crown and bridge models, occlusal splints, surgical guides, and aligner models can all be produced in-office with current DLP systems. The question for most practices is no longer whether technology works, but whether it fits their specific patient mix, team capacity, and daily volume.
This guide outlines the questions every practice should answer before committing, the technical features that most directly affect clinical outcomes, and a framework for choosing between systems designed for clinical environments.
Start With Your Practice, Not the Spec Sheet
The most common purchasing mistake is leading with price or print speed. Both matter, but neither tells you whether a system fits your actual workflow. Three operational questions are more useful starting points:
1. Which applications would you actually use it for?
The answer shapes nearly every other decision. A practice primarily interested in splints or diagnostic models has different requirements than one focused on surgical guide fabrication or same-visit crown and bridge. The more specialized the intended use, the more important it is that the system is well-optimized for that specific application rather than broadly capable across many.
2. Who will operate it, and how often?
In a dental lab, a dedicated technician manages the printer. In a clinical practice, it typically sits alongside other chairside equipment and is operated by clinical staff who have other priorities. This means that ease of use, a short learning curve, and reliable error prevention carry more in general. Any printer that requires manual parameter configuration at each step introduces meaningful risk in a busy clinical day.
3. What is your expected daily print volume?
A practice printing two or three jobs a week has very different needs from one running the printer as a central part of daily production. A system well-suited to occasional, varied use may become a bottleneck under sustained demand, and a high-throughput system may offer more capability than a lower-volume practice needs or can justify.
The Technical Features That Matter in a Clinical Setting
3D printer specifications are increasingly difficult to evaluate without context. The features below have the most direct impact on clinical outcomes and day-to-day usability:
Automated connectivity between printer and post-processing
Post-processing is where most chairside printing errors occur. Wash times, solvent cycles, and UV curing parameters that are set manually create a real risk of inconsistency, particularly when different team members operate the system. Printers that transfer validated parameters remove this variable. For a clinical practice managing multiple patients and tasks simultaneously, this is a quality control mechanism as much as a convenience.
End-to-end time, not just print speed
A print time quoted in a specification sheet reflects only the time inside the printer. A splint or model also needs to be washed and cured before it is clinically usable. Understanding the actual end-to-end time is more clinically relevant than headline print speed. For same-day delivery workflows, this distinction matters considerably.
Validated resin portfolio
Any resin used in a patient-facing application must be validated for that specific application and carry the appropriate regulatory clearance. An open material system is only as valuable as the rigor of its validation process. A broad, well-documented portfolio of validated resins gives practices more flexibility than a narrow or closed system, and provides the documentation needed for clinical and regulatory purposes.
The ONE and the PRO 20: Different Systems for Different Clinical Needs
To exemplify this decision making, let’s analyze both of Rapid Shape’s DLP 3D printers for clinics. Both offer an open system with pre-validated material and use similar technology for print reliability, and automatic connectivity WASH and CURE, their validated post-processing units. The differences between them are about volume capacity and workflow depth, not about clinical quality.
ONE: The right starting point for most practices
The ONE is the most compact, easy to integrate into a clinical space, and designed to minimize the setup complexity that slows adoption. Its standard configuration covers the full range of common chairside applications.
The optional Rapid Print Kit accessory adds four reservoirs, including a Crystal Polish reservoir for polished splints right out of the printer, and unlocks C&B model printing in approximately 8 minutes.
For practices new to chairside printing, or those with moderate and varied print volumes, the ONE removes the barriers that typically slow adoption without limiting clinical capability.
PRO 20: For practices that need more from their printer every day
The PRO 20 shares the same open material platform as the ONE, but boosts a whopping library of 200+ validated materials, and is built for sustained daily demand. RS Turbo (not available on the ONE) optimizes print settings for compatible resins, delivering 3 aligner models in 7 minutes and 3 C&B models at 50 μm in 15 minutes.
Across a full day of back-to-back jobs, this throughput advantage compounds, making the PRO 20 a better fit for larger group practices, clinic-labs, and any setting where the printer runs as a central part of production rather than a complement to it.
Post-Processing: The Step Most Often Underestimated
Post-processing is frequently treated as an afterthought in clinical evaluations. It should not be. The mechanical properties, biocompatibility, and surface quality of a 3D-printed part are determined as much by the wash and cure process as by the print itself.
Both the ONE and the PRO 20 integrate with Rapid Shape’s WASH and CURE units, with automatic parameter transfer at each stage. The CURE unit operates at 385 nm in a vacuum environment, which eliminates oxygen inhibition at the part surface, necessary for achieving the full mechanical properties of most dental-grade resins.
Before You Commit
The practices that benefit most from chairside 3D printing are those that have been specific about which applications they intend to use, have involved the team members who will operate the system in the evaluation, and have tested it with their own case types rather than manufacturer benchmark prints.
A few questions worth raising in any demonstration:
• What is the end-to-end time for the applications I intend to use?
• Which resins are validated for those applications, and what regulatory documentation is available?
• How does the system integrate with the design software and scanner I currently use?
• How quickly can production resume if the printer needs service?
The right chairside printer is the one your team will use consistently and reliably as part of a workflow that fits the pace of your practice, not the one with the most impressive specification sheet.
Frequently Asked Questions
What should a dental practice consider before buying a chairside 3D printer?
The most common purchasing mistake is leading with price or specifications instead of the practice’s own needs. Before investing, practices should clarify which applications they’ll actually use the printer for, who will operate it and how often, and what their expected daily print volume is. Matching the system to these factors matters more than any single spec sheet number.
Why does post-processing matter as much as the printer itself?
A 3D-printed part’s mechanical properties, biocompatibility, and surface quality are determined as much by the wash and cure process as by the print itself. Manual wash times, solvent cycles, and UV curing create inconsistency, especially across team members. Automated, validated parameter transfer between the printer and post-processing units removes this variability and functions as a quality control mechanism.
What’s the difference between the ONE and the PRO 20?
Both systems use the same core technology, pre-validated materials, and automatic connectivity to WASH and CURE, so the difference isn’t clinical quality. The ONE is the more compact, easy-to-integrate starting point for practices new to chairside printing or with moderate, varied volumes. The PRO 20 is built for practices running the printer as a central, daily part of production.
Why is end-to-end time more important than print speed alone?
A print time listed on a spec sheet only reflects time inside the printer. A splint or model still needs to be washed and cured before it’s clinically usable, so the actual end-to-end time is more clinically relevant than headline print speed, particularly for practices relying on same-day delivery workflows.
What questions should a practice ask during a product demonstration?
Worthwhile questions include: What is the end-to-end time for the applications I intend to use? Which resins are validated for those applications, and what regulatory documentation exists? How does the system integrate with my current design software and scanner? And how quickly can production resume if the printer needs service?
Subscribe to Our Newsletter.
Get exclusive information about the world of 3D printing and our successful work.
English
German
Spanish