ELEGOO Dental Orthodontic Resin for Orthodontic Models – Orange (1 kg)
Overview: The ELEGOO Dental Orthodontic is a 405 nm UV resin formulated for printing orthodontic dental models: diagnostic and treatment planning models and, most importantly, models for thermoforming aligners, retainers, and splints. It offers just 0.2–0.5% shrinkage, excellent dimensional stability, and a smooth surface finish that transfers fine detail to the thermoformed sheet. Available in orange, 1 kg bottle, compatible with 405 nm LCD/MSLA and DLP printers.
Key Specs at a Glance
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Type: UV resin for orthodontic dental models.
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Primary use: Thermoforming models for aligners, retainers, and splints; diagnostic and treatment planning models.
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Shrinkage: 0.2–0.5%, ensuring printed models accurately reflect scan dimensions.
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Surface finish: Smooth, highly detailed surface with the hardness required to withstand thermoforming.
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Wavelength: 385–410 nm (compatible with 405 nm LCD/MSLA and DLP printers).
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Format: 1,000 g, orange. ELEGOO Part Number (P/N): 50.103.0066.
What Is Orthodontic Resin Used For?
In digital orthodontics, every stage of aligner treatment requires a physical model of the dental arch for thermoforming the plastic sheet. This resin is designed exactly for that purpose: print your model series from the intraoral scan, post-cure them, and run them through the thermoformer. It's also ideal for retainers, night guards, whitening trays, and study models for case planning or patient consultations.
Can It Handle Thermoforming?
Yes. ELEGOO formulates this resin with the hardness and toughness required for thermoforming (80–88 Shore D, with good impact resistance and a degree of toughness per ELEGOO's technical datasheet): the model withstands the heat and pressure of the thermoformer without warping or cracking, and its low shrinkage ensures the finished aligner fits just as it does in the scan. For best results, models should be thoroughly washed and fully post-cured before thermoforming.
Why Orange?
Warm, opaque colors like this orange provide strong contrast, making it easy to see margins, aligner trimline guides, and fine anatomical details — both by eye and when trimming. The look is also reminiscent of traditional plaster models, which feels familiar and professional to both patients and dental technicians.
Is It Compatible with My Printer?
Yes, as long as your printer operates at 405 nm — which covers the vast majority of desktop LCD/MSLA and DLP printers: ELEGOO Mars and Saturn, Anycubic Photon, Creality Halot, Phrozen, and similar machines. A mid- or large-format printer lets you print multiple models per build plate, speeding up aligner series production.
Technical Specifications
Data sourced from the official ELEGOO Technical Data Sheet (TDS), ASTM testing at 23 °C.
| Feature |
Value |
| Resin type |
UV photopolymer for orthodontic models (OTM series) |
| Color |
Orange |
| Contents |
1,000 g |
| Wavelength |
385–410 nm |
| Viscosity (25 °C) |
200–400 mPa·s |
| Density (25 °C) |
1.05–1.25 g/cm³ |
| Shrinkage |
0.2–0.5% |
| Hardness |
80–88 Shore D |
| Maximum force |
76.8 kgf (±10%) |
| Tensile strength |
18.1 MPa (±10%) |
| Tensile modulus |
268.5 MPa (±10%) |
| Elongation at yield |
5.0% (±10%) |
| Elongation at break |
8.4% (±10%) |
| Flexural strength |
21.7 MPa (±10%) |
| Flexural modulus |
398 MPa (±10%) |
| Impact resistance |
74.3 J/m (±10%) |
| Shelf life |
2 years (store at 25–30 °C) |
| ELEGOO Part Number (P/N) |
50.103.0066 |
ELEGOO Recommended Print Settings
Values from the official technical datasheet, measured on a 6.6'' mono LCD screen at 3,500–4,500 µW/cm². Use these as a starting point and dial them in for your printer.
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Bottom layer exposure: 25–30 s.
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Normal layer exposure: 2.5–4.5 s.
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Lift distance (bottom and normal layers): 6 mm.
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Lift speed: 60 mm/min for bottom layers, 80 mm/min for the rest.
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Retract speed: 150 mm/min.
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Layer height: 0.025–0.05 mm.
Usage Tips
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Shake the bottle thoroughly before each use and keep it away from direct sunlight.
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Print at a warm room temperature (around 25 °C): cold conditions thicken the resin and increase print failures.
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Dial in your exposure settings using the recommended parameters above — always run a test print before starting a full batch.
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Wash with isopropyl alcohol (IPA) or ethanol above 95% for at least 30 seconds, then fully post-cure before thermoforming.
- Wear gloves and a mask, work in a well-ventilated area, and cover any resin left in the vat.
Who Is This For?
Orthodontic clinics and dental labs producing aligners, retainers, or splints in-house who need reliable models at a low per-model cost. Also ideal for students and dental technicians printing study models. This is not an intraoral resin — the model is the base on which the appliance is fabricated, not the appliance itself.
Workflow: Print, Wash, Cure, and Thermoform
Print your models on a 405 nm resin 3D printer, wash and post-cure them in a wash and cure station, then move them straight to the thermoformer. For prosthetics and restoration models, check out ELEGOO Dental Model; for casting patterns for crowns and frameworks, see ELEGOO Dental Castable; browse the full range at ELEGOO resins.
Frequently Asked Questions About ELEGOO Dental Orthodontic Resin
What is this resin used for?
It's designed for printing orthodontic dental models: thermoforming models for aligners, retainers, and splints, as well as diagnostic and treatment planning models.
Can it be used to make clear aligners?
Yes, but as a model base: you print the dental arch with this resin and thermoform the aligner sheet over it. The actual aligner is the thermoformed sheet, not the resin itself.
Is it safe for intraoral use?
No. This is a model resin, not a biocompatible material approved for use inside the mouth.
Can it withstand the heat of thermoforming?
Yes, it's formulated with the hardness and heat resistance required for thermoforming, provided the model is fully post-cured.
Is it accurate enough for aligners?
Yes. Its 0.2–0.5% shrinkage rate keeps the model true to the scan, which is what ultimately determines aligner fit.
Will it work with my ELEGOO, Anycubic, or Creality printer?
Yes, as long as it's a 405nm LCD/MSLA or DLP printer, such as the ELEGOO Mars and Saturn series, Anycubic Photon, or Creality Halot.
How do you wash it?
Use isopropyl alcohol (IPA) or ethanol above 95% concentration for at least 30 seconds. It is not water-washable.
What exposure settings should I use?
ELEGOO recommends 25–30s for base layers and 2.5–4.5s per layer (measured on a 6.6'' mono screen). Use these as a starting point and fine-tune with a calibration test on your specific printer.
What's the difference between ELEGOO Dental Orthodontic, Dental Model, and Dental Castable?
Orthodontic is for thermoforming orthodontic models (aligners, retainers, splints). Dental Model is for restorative and prosthetic models, offering greater toughness and scratch-resistant surfaces. Castable is for burnout patterns used in metal casting.
How many models can I get from 1 kg?
It depends on model size and whether you print solid or hollow. Printing hollow models with drainage holes significantly reduces resin consumption per arch.
