Why Dentists are Adopting 3D Printing Faster than Any Other Technology
Evidence-based look at why 3D printing spread faster in dentistry than CAD/CAM or CBCT, applications, accuracy, limitations, and what the research shows.
Why Are Dentists Adopting 3D Printing So Fast?
Dentists are adopting 3D printing faster than CAD/CAM or CBCT because it extends a digital workflow many practices already use, adding a printer to an existing intraoral scanner and CAD software pipeline rather than replacing an entire clinical process. Within about a decade, additive manufacturing has moved from a niche laboratory tool to a chairside and in-lab standard for surgical guides, dental models, orthodontic appliances, and provisional restorations. Chairside systems such as Rapid Shape ONE support this shift by enabling same-appointment production.
Introduction
Dentistry has adopted new technologies before: CAD/CAM systems in the 1980s, cone-beam computed tomography (CBCT) in the 2000s, intraoral scanners in the 2010s. Each of these took years, sometimes decades, to move from early adopters to mainstream clinical use. 3D printing is following a different curve. Within roughly a decade, additive manufacturing has moved from a niche laboratory tool to a chairside and in-lab standard used for surgical guides, models, splints, and provisional restorations.
This is not a marketing claim. It is a pattern documented in the peer-reviewed literature on digital dentistry, additive manufacturing, and dental technology adoption (Dawood et al., 2015; van Noort, 2012; Kessler, Hickel & Reymus, 2020). This article examines why 3D printing has spread faster than previous dental technologies, where it is genuinely useful today, where it is not yet a replacement for conventional methods, and what the evidence actually says about accuracy, cost, and clinical outcomes, without inflating numbers that are not verifiable.
Why 3D Printing Is Transforming Modern Dentistry
3D printing, or additive manufacturing, builds an object layer by layer from a digital file, in contrast to subtractive methods (milling) or conventional handmade fabrication (plaster models, hand-poured impressions). In dentistry, the most common additive processes are vat photopolymerization (SLA and DLP resin printers) and, for metal frameworks, powder bed fusion (SLM/SLS) (ISO/ASTM 52900:2021).
What makes this relevant to modern dental practice is that 3D printing sits at the end of an existing digital workflow that many practices had already started building: intraoral scanner → Print Studio software → manufacturing device. Once a practice has a digital impression, adding a 3D printer is a comparatively small step, because the scanning and design infrastructure is already in place. This is a structural reason 3D printing has spread quickly: it did not require dentists to change their entire workflow from scratch; it required them to add one more device to a digital pipeline already justified by intraoral scanning (van Noort, 2012). For a full walkthrough of this shift, see our complete digital dental lab workflow guide.
Clinically, 3D printing enables the in-house or in-lab production of surgical guides for implant placement, diagnostic and 3D-printed dental models, orthodontic models, custom trays, occlusal splints, and provisional restorations, often within hours rather than the days required to send a case to an external laboratory (Dawood et al., 2015; Kessler, Hickel & Reymus, 2020).
Why is 3D printing becoming popular in dentistry?
Because it converts a digital file into a physical object without the tooling, casting, or milling-block costs associated with older manufacturing methods, and because it plugs directly into workflows dentists had already begun digitizing through intraoral scanning and CBCT.
Why Adoption Is Faster Than Previous Dental Technologies
To understand why 3D printing has been adopted faster than CAD/CAM milling or CBCT, it helps to compare the barriers each technology faced when introduced.
CAD/CAM systems (chairside milling, introduced commercially in the 1980s) required a significant upfront investment in a scanning unit and milling unit, proprietary ceramic blocks, and a change in clinical technique for single-visit restorations. Adoption was gradual because the return depended heavily on case volume and the willingness of the dentist to change an entire clinical protocol (van Noort, 2012).
CBCT required regulatory attention to radiation dose, specific training in three-dimensional radiographic interpretation, and a large capital investment, which limited adoption mostly to specialists (oral surgeons, endodontists, implantologists) for many years before becoming more common in general practice.
3D printers, by contrast, entered the market at a moment when:
Regulatory pathways for many printed devices (such as surgical guides and models) are comparatively well defined by existing frameworks: the FDA‘s device classification and guidance for additive-manufactured devices in the U.S. (U.S. Food and Drug Administration, 2017), and the EU Medical Device Regulation (2017/745) for CE marking in Europe, giving manufacturers and practices a clearer compliance route than earlier digital technologies had at launch.
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Desktop resin printers became inexpensive relative to milling units and CBCT machines, lowering the capital barrier for general practices and small laboratories. Compact chairside systems, such as Rapid Shape’s ONE printer, designed specifically for dental clinics rather than industrial labs, are a concrete example of this category: a countertop-sized device intended to fit into an existing operatory rather than requiring a dedicated lab space.
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Software interoperability improved. STL and other standard file formats produced by intraoral scanners and CAD software could be sent directly to a printer without proprietary hardware lock-in to the same degree seen in early CAD/CAM systems.
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The clinical use cases did not require replacing an entire procedure. A dentist could start with a single low-risk application, printing study models or surgical guides, without altering how restorations are placed or how patients are treated. This incremental adoption path lowered clinical risk compared to CAD/CAM, which asked dentists to change the entire crown workflow at once.
- Regulatory pathways for many printed devices (such as surgical guides and models) are comparatively well defined by existing frameworks: the FDA’s device classification and guidance for additive-manufactured devices in the U.S. (U.S. Food and Drug Administration, 2017), and the EU Medical Device Regulation (2017/745) for CE marking in Europe, giving manufacturers and practices a clearer compliance route than earlier digital technologies had at launch.
In short, 3D printing did not ask the profession to make one large leap; it allowed adoption in modular, low-risk steps built on top of digital infrastructure (scanners, CAD software) that many practices had already installed for other reasons. This is a key, evidence-consistent explanation for why the adoption curve looks steeper than that of CAD/CAM or CBCT (Dawood et al., 2015).
| Step | Traditional (Analog) Workflow | Digital Workflow (with 3D Printing) |
| Impression / data capture | Physical impression material (alginate, PVS) in a tray | Intraoral or desktop scan producing a digital file |
| Model fabrication | Plaster or stone model poured by hand, requiring drying/setting time | Digital model designed in CAD software and 3D printed |
| Design of guides/appliances | Manual wax-up or hand articulation | Digital design in CAD software, simulated before fabrication |
| Manufacturing | Sent to external lab; cast, hand-finished, or milled | Printed in-house or in a digital lab; may still require milling for certain restorations |
| Turnaround for models/guides/trays | Often days, dependent on lab shipping cycles | Can be same-day or next-day for applicable devices |
| Storage | Physical model archives requiring shelf space | Digital files stored electronically |
| Error correction | Remake often requires a new impression and lab cycle | Digital design can frequently be adjusted and reprinted without a new impression, when the scan data is still valid |
| Best suited for | Long-established, well-documented long-term restorations in many protocols | Models, guides, trays, splints, provisionals, and select frameworks |
This comparison illustrates why 3D printing was adopted quickly for specific devices (models, guides, trays) rather than as a wholesale replacement of laboratory dentistry: it shortens or removes several of the slowest, most manual steps in the traditional chain, while long-term definitive restorations still often rely on established milled or conventional methods (Dawood et al., 2015; Kessler, Hickel & Reymus, 2020).
The “Digital Workflow” column above describes the category of change, not any single product, but it is worth grounding in a concrete example: this is the same shift chairside systems like the Rapid Shape ONE are built to support inside a dental clinic specifically, which is covered in more detail below.
Clinical Applications
3D printing is not a single application. It supports a range of dental and orthodontic devices, each with a different level of clinical evidence and maturity.
| Application | Typical Technology | Reported Benefit | Known Limitation |
| Surgical guides for implant placement | SLA / DLP resin printing | Assists in transferring the planned implant position from CBCT/CAD software to the surgical site (Van Assche et al., 2012) | Accuracy depends on guide design, fit, and clinical handling; deviations from the planned position are still reported in the literature |
| Diagnostic and study models | SLA / DLP resin printing | Fast, in-office production; avoids storage of physical plaster models | Mechanical properties and dimensional stability vary with build orientation and resin type (Alharbi, Osman & Wismeijer, 2016) |
| Orthodontic models and aligner molds | SLA / DLP resin printing | Enables digital planning and in-house or outsourced production for clear aligner therapy | Direct 3D printing of the aligner itself (rather than the mold) is still an emerging area, not yet the industry default |
| Occlusal splints / night guards | SLA / DLP resin printing | Faster turnaround than lab-fabricated splints in some workflows | Requires biocompatible, validated resins and proper post-curing |
| Provisional crowns and bridges | SLA / DLP resin printing | Chairside or same-day provisionalization is possible in select workflows | Mechanical properties (flexural strength, wear resistance) of 3D-printed resins are generally lower than milled composite or ceramic for long-term/definitive restorations (Kessler, Hickel & Reymus, 2020) |
| Removable partial denture frameworks | SLM/SLS (metal) | Digital design allows for complex framework geometries | Requires post-processing and quality control comparable to cast frameworks; adoption is still limited to labs with metal printing capability |
| Custom impression trays | SLA / DLP resin printing | Personalized trays without physical model duplication | Still requires an accurate digital impression as the input |
For a documented, real-world illustration of a fully digital removable-prosthetic workflow, see this digital denture case study, which walks through record capture, design, and fabrication for a full upper denture.
What dental applications use 3D printing?
The most established uses are surgical guides, diagnostic/orthodontic models, custom trays, occlusal splints, and provisional restorations. Metal 3D printing for removable partial denture frameworks and definitive restorations is used but is less widespread, generally concentrated in specialized dental laboratories rather than individual practices.
Benefits for Dental Practices
How does 3D printing improve dental workflows?
By replacing several manual laboratory steps (pouring plaster models, hand-fabricating trays, or waiting for an external lab to return a physical guide) with a digital-to-physical pipeline that a practice or an in-house lab can control directly. This can shorten turnaround time for certain devices (such as models and guides) compared to sending a case out and waiting for a return shipment, a workflow difference documented in reviews of digital dental workflows (Dawood et al., 2015; van Noort, 2012).
Operationally, in-house printing can reduce dependence on external laboratories for specific low-complexity items, which may lower per-unit costs for high-volume items like study models and trays. This is a workflow and logistics advantage, not a guaranteed financial return. Outcomes vary by case volume, equipment and material costs, staff training, and case mix. Practices should evaluate this based on their own numbers rather than a promised return on investment. For guidance on evaluating equipment options, see our guide on choosing a dental 3D printer.
Is dental 3D printing cost-effective?
It depends on the application and case volume. For high-frequency, standardized items (models, trays, guides), in-house printing can reduce marginal cost per unit once the printer investment is made. For low-frequency or highly complex prosthetic work, outsourcing to a lab with specialized equipment may remain more practical. Market and cost estimates vary significantly by report and should be treated as estimates rather than fixed figures.
Additional operational benefits documented in the literature include:
- The ability to iterate a design digitally before manufacturing, reducing remakes caused by fit issues identified only after physical fabrication.
- Reduced physical storage needs (digital files replace physical model archives).
- Greater design flexibility for custom devices (e.g., patient-specific surgical guides).
Chairside 3D Printing in Practice: The ONE Example
Most of the literature above discusses 3D printing at the level of processes and materials rather than specific commercial systems. As a concrete example: Rapid Shape’s ONE printer is a chairside system built for same-appointment production in a dental clinic rather than lab-based batch production.
Per Rapid Shape’s published specifications, the ONE is a DLP printer with a footprint under 80 cm of countertop space, XY accuracy of ±34 μm, and a validated library of 50+ dental resins across 15+ workflows, with reported print times around 8 minutes for a crown-and-bridge job and 60 minutes for a full-arch splint. These are manufacturer engineering specifications, not independent peer-reviewed clinical data: they describe machine capability, not a controlled study of clinical fit or longevity.
Clinicians using the system have described the practical effect in testimonials published by Rapid Shape:
“The digital workflow has transformed our daily practice… direct data transfer to 3D printing enables faster, more precise, and reproducible results, especially for surgical guides and splints.” (PD Dr. Amely Hartmann, Praxis Dr. Seiler und Kollegen)
“The Rapid Shape ONE Solution empowers effortless team delegation across print, wash, and cure… with plug-and-play simplicity.” (Dr. Nitish Surathu, Digital Dentistry Educator, ACE Institute)
These are customer testimonials, not controlled studies, and should be weighed accordingly. But they echo the same structural pattern the research literature describes: a chairside device plugging into an existing scan-to-design pipeline, with a training curve users describe as manageable.
Benefits for Patients
From the patient’s perspective, the shift toward digital, additive workflows changes the experience of treatment more than it changes the underlying biology of care.
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Fewer or no physical impressions. Where an intraoral scan replaces a conventional alginate or PVS impression, patients avoid the gag-inducing, messy experience of a tray full of impression material. This is a comfort difference documented in comparative studies of digital versus conventional impressions (Ender & Mehl, 2011).
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Shorter chair time for some procedures, particularly when a guide, model, or splint can be produced same-day rather than requiring a return visit after lab fabrication.
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More predictable, planned implant surgery. Guided implant surgery based on digital planning and a 3D-printed surgical guide is intended to transfer the pre-surgical plan to the surgical site more precisely than freehand placement, which is the rationale supported in studies of computer-guided implant accuracy (Van Assche et al., 2012).
- Personalized devices. Splints, trays, and models can be designed to a patient’s specific anatomy rather than relying on generic sizes.
It is worth noting that patient-experience benefits are strongest where 3D printing replaces an uncomfortable analog step (like a physical impression) rather than in every application: the improvement is workflow-specific, not universal.
Challenges and Limitations
Is dental 3D printing accurate? Accuracy is application-dependent, and it’s worth separating two different claims. Machine-level accuracy, how precisely a printer reproduces a digital file, is typically a manufacturer engineering spec (e.g., an XY tolerance in micrometers). Clinical accuracy, how precisely the finished device fits the patient in use, is a separate question studied in peer-reviewed literature and depends on guide design and clinical handling as much as the printer (Van Assche et al., 2012). Guided implant surgery can improve the transfer of a pre-surgical plan versus freehand placement, but deviations between planned and actual position are still observed. For models and prosthetic components, dimensional accuracy and mechanical properties vary by printer type, resin, layer thickness, build orientation, and post-curing protocol (Alharbi, Osman & Wismeijer, 2016; Kessler, Hickel & Reymus, 2020). There is no single accuracy figure that applies across all devices, materials, and claim types.
Other documented limitations include:
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Material properties. Many 3D-printed resins used for provisional restorations and appliances have lower flexural strength and wear resistance than milled composite, ceramic, or metal, which limits their use mainly to provisional, interim, or removable appliances rather than long-term definitive restorations in many current protocols (Kessler, Hickel & Reymus, 2020).
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Post-processing requirements. Resin-printed parts require washing (removal of uncured resin) and post-curing under controlled conditions; inconsistent post-processing affects both mechanical properties and biocompatibility.
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Biocompatibility and regulatory classification. Materials in direct or prolonged contact with oral tissues must meet biocompatibility standards, and devices are subject to applicable regulatory clearance processes. In the United States, this falls under the FDA’s framework for additive-manufactured medical devices (U.S. Food and Drug Administration, 2017); in the European Union, comparable oversight falls under the Medical Device Regulation (EU) 2017/745, which governs CE marking for dental devices, including those produced additively. Manufacturers and practices operating across regions need to track both frameworks rather than assuming one covers the other.
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Learning curve. Successful use requires competency in digital planning software, an understanding of build orientation and support structures, and quality control procedures for each print, skills that differ from traditional laboratory or chairside technique and require dedicated training.
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Quality control. Unlike a standardized milling block with known, certified mechanical properties, 3D-printed output quality depends on printer calibration, resin batch, and environmental conditions (temperature, humidity), which means practices need internal quality-control protocols rather than assuming uniform output.
- Not a full replacement for conventional methods. Long-term definitive restorations (many crowns, bridges, and some fixed prosthodontic work) are still frequently fabricated using milled ceramic or metal, or conventional cast techniques, because the mechanical performance and long-term clinical data for printed definitive restorations are less extensive than for milled or conventionally fabricated alternatives (Kessler, Hickel & Reymus, 2020).
Future of 3D Printing in Dentistry
The research literature points to several directions that are active areas of study rather than fully established clinical standards:
- Direct printing of definitive restorations. Research is ongoing into resins and printing protocols intended to match the mechanical performance of milled ceramics and composites for long-term restorations, but this is not yet the default clinical pathway (Kessler, Hickel & Reymus, 2020).
- Metal additive manufacturing for frameworks and, in research settings, implant components, using powder bed fusion techniques (Revilla León et al., 2017).
- Bioprinting and regenerative approaches, including experimental work on printed scaffolds intended to support tissue regeneration, remain in early research stages and are not part of standard clinical care.
- Integration with AI-assisted design, where software increasingly automates parts of the digital design step before printing (model base generation, guide design), which may further shorten the digital-to-physical pipeline.
These directions are documented as active research areas in the additive manufacturing and prosthodontic literature, not as guaranteed near-term clinical replacements for current methods.
Frequently Asked Questions
Why is 3D printing becoming popular in dentistry?
Because it integrates into digital workflows dentists had already begun adopting through intraoral scanners and CAD software, requires a comparatively low capital investment relative to CAD/CAM milling and CBCT, and can be adopted incrementally, starting with low-risk applications like models and guides, rather than requiring an entire clinical protocol to change at once.
Is dental 3D printing accurate?
Accuracy depends on the application, the printer and material system, and clinical handling, and on which kind of accuracy is being discussed. Manufacturer-reported machine accuracy (e.g., a printer’s XY tolerance in micrometers) describes how precisely the device reproduces a digital file; clinical accuracy describes how well the finished device performs in the patient’s mouth, which depends on guide design and technique as much as on the printer. Guided implant surgery using 3D-printed guides can improve the transfer of a digital surgical plan compared with freehand placement, though deviations between the planned and actual outcome are still reported in the literature. See a real-world chairside guided surgery and same-day provisional crown case for how this looks in practice.
What are the benefits of 3D printing for dentists?
Faster in-house or in-lab production of models, guides, trays, and provisional devices; reduced reliance on external labs for certain items; greater design flexibility for patient-specific devices; and the ability to digitally review a design before physical fabrication, which can reduce remakes caused by fit errors.
What dental applications use 3D printing?
The most established applications are surgical guides for implant placement, diagnostic and orthodontic study models, custom trays, occlusal splints, and provisional restorations. Metal 3D printing is used for select removable partial denture frameworks, primarily in specialized laboratories.
Is dental 3D printing cost-effective?
It depends on case volume and application. High-frequency, standardized devices (models, trays, guides) are more likely to benefit from in-house printing economically, while low-frequency or complex prosthetic work may still be more efficiently produced by an external lab with specialized equipment. Cost-effectiveness figures vary widely across market reports and should be treated as estimates specific to each source rather than universal numbers.
How does 3D printing improve dental workflows?
By replacing manual, analog steps (pouring models, hand-fabricating trays, waiting on external lab turnaround for certain devices) with a digital file that can be sent directly to a printer, shortening the path from digital plan to physical object for applicable devices.
Can 3D printing fully replace conventional dental laboratory methods?
Not currently, across all applications. For long-term definitive restorations, milled ceramic, metal, and some conventional fabrication methods remain standard in many protocols because their long-term mechanical performance and clinical data are more extensive than those of most printed definitive restorations.
Key Takeaways
- 3D printing has spread through dental practices faster than CAD/CAM milling or CBCT largely because it builds on digital infrastructure (intraoral scanners, CAD software) many practices already had, and because it can be adopted in incremental, low-risk steps.
- Established, well-supported applications include surgical guides, diagnostic and orthodontic models, custom trays, occlusal splints, and provisional restorations.
- Accuracy and mechanical performance are application- and material-specific: there is no single accuracy figure that applies to every 3D-printed dental device.
- Definitive, long-term restorations are still frequently fabricated using milled ceramic, metal, or conventional methods, because printed materials generally show lower mechanical strength and less extensive long-term clinical data.
- Cost-effectiveness depends on case volume and the specific application; it is not a guaranteed outcome and should be assessed practice by practice.
- Regulatory oversight (FDA guidance for additive-manufactured devices in the U.S., and the EU Medical Device Regulation 2017/745 for CE-marked devices in Europe) and material biocompatibility standards apply to 3D-printed dental devices, and quality control is the practice’s or lab’s responsibility, not automatic.
- Ongoing research is exploring direct printing of definitive restorations, metal additive manufacturing, and bioprinting, but these remain emerging areas rather than current clinical standards.
- Chairside systems built specifically for the dental-clinic use case (such as the Rapid Shape ONE) illustrate the adoption pattern described above: countertop-sized hardware, a validated resin library, and same-appointment turnaround for select applications like crowns, bridges, and splints. That said, the manufacturer’s engineering specifications should not be read as a substitute for independent clinical outcome data.
Conclusion
3D printing has earned a place in modern dental practice not because it replaces everything that came before it, but because it fits neatly into the digital workflow dentistry was already building: scanning, planning, and now manufacturing. Its fast adoption reflects a genuine structural advantage: low capital barriers, incremental clinical risk, and compatibility with existing digital tools. At the same time, the evidence is clear that 3D printing is not universally superior to conventional or milled methods for every application, particularly for long-term definitive restorations. Understanding where the technology is well supported, and where conventional methods remain the evidence-based choice, is what allows dental teams to use 3D printing effectively rather than as a marketing feature.
References
- Dawood A, Marti Marti B, Sauret-Jackson V, Darwood A. 3D printing in dentistry. British Dental Journal. 2015;219(11):521-529. PMID: 26657435.
- van Noort R. The future of dental devices is digital. Dental Materials. 2012;28(1):3-12. PMID: 22119539.
- Kessler A, Hickel R, Reymus M. 3D Printing in Dentistry-State of the Art. Operative Dentistry. 2020;45(1):30-40. PMID: 31172871.
- Alharbi N, Osman RB, Wismeijer D. Effects of build direction on the mechanical properties of 3D-printed complete coverage interim dental restorations. Journal of Prosthetic Dentistry. 2016;115(6):760-767. PMID: 26803175.
- Revilla León M, Klemm IM, García-Arranz J, Özcan M. 3D Metal Printing – Additive Manufacturing Technologies for Frameworks of Implant-Borne Fixed Dental Prosthesis. European Journal of Prosthodontics and Restorative Dentistry. 2017;25(3):143-147. PMID: 28869368.
- Van Assche N, Vercruyssen M, Coucke W, Teughels W, Jacobs R, Quirynen M. Accuracy of computer-aided implant placement. Clinical Oral Implants Research. 2012;23(Suppl 6):112-123. PMID: 23062136.
- Ender A, Mehl A. Full arch scans: conventional versus digital impressions-an in-vitro study. International Journal of Computerized Dentistry. 2011;14(1):11-21. PMID: 21657122.
- International Organization for Standardization. ISO/ASTM 52900:2021: Additive manufacturing, general principles, fundamentals and vocabulary.
- U.S. Food and Drug Administration. Technical Considerations for Additive Manufactured Medical Devices: Guidance for Industry and Food and Drug Administration Staff. 2017.
- European Parliament and Council of the European Union. Regulation (EU) 2017/745 on medical devices (Medical Device Regulation).
- Rapid Shape GmbH. ONE Dental Chairside Printer: product and technical specifications. rapidshape3d.com. [Manufacturer-published specification, not a peer-reviewed source; cited only for machine-level engineering data, clearly distinguished in-text from clinical evidence.]