Dental 3D Printers for Rent

Bring Model, Guide and Appliance Production In-House

Resin 3D printing has become the most accessible part of the digital workflow. Once you have an intraoral scanner, a chairside printer turns scans into physical study models, aligner and retainer models, surgical guides, occlusal splints, custom trays, try-in dentures and long-term temporaries — often in under an hour of printing and with far lower per-unit cost than outsourcing. For many practices the printer, not the mill, is the first manufacturing device they add.

Printing is, however, a system rather than a single machine. Accurate, biocompatible parts depend on the printer, the resin, the slicing software, washing, post-curing and correct finishing all working together as a validated workflow. A printer that produces a beautiful model can still produce a splint that is undercured or a guide that fits poorly if the post-processing step is wrong. That is why reputable dental printers are sold with resin libraries, tested print profiles and matched wash and cure units.

Renting lets you start with a complete, validated package and learn which applications genuinely pay off in your practice before committing capital. It also protects you against rapid obsolescence: printer generations change quickly, and resin approvals are often tied to specific models. Dental.Rent works with suppliers of dental-specific DLP, LCD and SLA systems and can quote the printer, post-processing equipment and resin starter kits as one monthly figure.

3D printing equipment available to rent

What to consider when renting a dental 3D printer

DLP, LCD and SLA: how the technologies differ

All three technologies cure liquid photopolymer resin layer by layer with light, but they deliver that light differently. Stereolithography (SLA) traces each layer with a laser spot steered by mirrors; it produces very smooth surfaces and fine detail, though classic laser SLA is slower on full build plates. Some newer systems use a backlit LCD with a low-force peel mechanism, giving SLA-like quality at higher speed.

Digital light processing (DLP) projects an entire layer at once from a projector, so print time depends on part height rather than how many parts are on the plate. Dental DLP printers are tightly calibrated, usually work at 385 or 405 nm and are commonly paired with a closed or semi-open library of validated resins. LCD printers, also called masked SLA (MSLA), use a monochrome LCD screen to mask a UV LED array. They are inexpensive and fast, and high-resolution 4K–8K screens give very good model detail, but the LCD screen is a consumable that degrades over time and light uniformity varies more between machines.

• Models, trays and aligner models: any well-calibrated LCD, DLP or SLA printer is suitable.
• Surgical guides and splints: prioritise a printer with validated biocompatible resin profiles.
• Crowns, temporaries and dentures: choose a system where the resin manufacturer explicitly validates that printer and cure unit.
• High volume: a large-platform DLP or LCD printer allows overnight batching of many arches.

Resins and clinical applications

Dental resins fall into two broad groups. Non-contact or short-contact resins — model resins, die resins, aligner-model resins and tray resins — prioritise dimensional stability, surface finish and fast printing. Patient-contact resins — surgical guide, splint, denture base, denture teeth and temporary or permanent crown resins — are regulated medical device materials and must be processed according to their instructions for use to meet their biocompatibility claims.

Each application has its own requirements. Surgical guides need dimensional accuracy, autoclavability or chemical disinfection compatibility and translucency for checking seating. Splints and night guards need toughness and resistance to fracture, and flexible or hard-soft variants are available. Denture resins need shade matching and good bonding between base and teeth. Temporary and long-term crown resins are typically ceramic-filled composites with defined indications for single units or short bridges.

• Model and die resins — study models, restorative and implant models with removable dies
• Aligner and thermoforming model resins — heat-resistant models for clear aligners and retainers
• Surgical guide resins — pilot and fully guided implant surgery
• Splint and night-guard resins — hard, flexible and thermo-responsive options
• Denture base and denture teeth resins — try-ins, immediates and definitive dentures
• Temporary and permanent crown resins — provisionals, long-term temporaries and selected definitive restorations
• Custom tray and gingiva-mask resins

Biocompatibility and post-processing

A resin's biocompatibility rating applies to the finished, fully processed part — not to the liquid in the bottle. Uncured or partially cured resin is a skin and respiratory sensitiser and can cause contact dermatitis in staff and adverse reactions in patients. Patient-contact resins are tested against ISO 10993 biological evaluation standards and are CE-marked or FDA-cleared as medical device materials, but only when printed on validated equipment and washed and post-cured exactly as specified.

In practice this means using the specified wash solution (typically 90–99% isopropyl alcohol or a manufacturer's alternative), keeping wash times short enough to avoid swelling but long enough to remove residue, drying parts fully, and post-curing at the correct wavelength, temperature and time. Some resins require curing under nitrogen or in glycerine to prevent an oxygen-inhibited surface layer. Track resin batch numbers and keep a record of print and cure parameters for every patient device — this documentation is what demonstrates that an in-house-made appliance meets regulatory requirements.

• Use two-stage washing (dirty then clean bath) and replace solvent on a schedule.
• Allow parts to dry completely before post-curing.
• Post-cure with the unit and settings specified for that resin.
• Remove supports and polish after curing, then disinfect or sterilise as per IFU.
• Store resins sealed, away from light and within the stated temperature range.
• Dispose of liquid resin and contaminated solvent as hazardous chemical waste.

Space, ROI and what to check in the contract

A chairside printing station needs roughly a metre of bench space for the printer, wash unit and cure unit, a stable surface free from vibration, a room temperature within the resin's working range (often 18–28 °C) and adequate ventilation. Keep it away from the sterilisation area and out of the patient path. Some practices locate the printer in a small lab or behind the reception desk to show patients that devices are made on site.

The financial case usually rests on replacing outsourced models, splints, guides and trays with in-house production at a fraction of the lab fee, and on faster turnaround — same-day night guards or next-day surgical guides. Resin cost per part is low for models and moderate for patient-contact devices, but you must also account for staff time spent on design, post-processing and finishing.

• Which resins are validated and is a starter supply included?
• Are resin tanks, films, LCD screens and build plates covered as wear parts?
• Are slicing software and updates included, and is there a per-print fee?
• Is on-site installation and training on post-processing included?
• What is the response time for repairs, and is a loan printer available?