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Material Types for Dental UV 3D Printing

Release time:

2026-08-10 07:12

Material Types for Dental UV 3D Printing

In dental UV‑3D printing, photopolymer resin is the core material. In liquid form, it undergoes a polymerization reaction upon exposure to ultraviolet light, solidifying layer by layer to create physical models or final restorations, thereby rapidly converting digital oral scan data into tangible prototypes. Depending on the application, dental photopolymers have evolved into various formulations, covering model fabrication, restoration production, surgical guides, denture bases, and more. Their composition typically includes resin monomers, prepolymers, photoinitiators, and a range of additives; different resin types emphasize distinct properties such as mechanical performance, dimensional accuracy, and biocompatibility.

I. Models and Orthodontic Materials

Model resins are one of the most widely used material categories in dental UV‑based 3D printing, primarily employed for fabricating orthodontic models, implant models, and restorative models. These materials must exhibit high dimensional stability, excellent detail reproduction, and sufficient surface hardness to meet clinical precision requirements.

In terms of material composition, a variety of resin monomers commonly used in dentistry can serve as the foundational components of 3D‑printing resins. Resin systems containing specific additives have been successfully employed in 3D printing; some monomers act as diluents to reduce viscosity and enhance conversion rates, while other constituents contribute to mechanical strength. The flexural strength and surface hardness of such materials are comparable to those of conventional clinical resin materials.

In the field of orthodontics, light-curable resins are used not only for fabricating tooth‑arrangement models but also for producing clear aligners and other appliances. To address the potential model shrinkage that can occur during post‑curing, researchers have proposed an adaptive approach that adjusts the exposure time of each layer to compensate for local dimensional changes, thereby ensuring the accuracy of orthodontic models even when dealing with complex dental arch geometries.

II. Restorative and Implant Materials

Photopolymer resins are a key material category that enables UV‑based 3D printing to evolve from temporary restorations to long‑term, durable solutions, encompassing products such as dental crowns, fixed prostheses, implant surgical guides, and denture bases.

In the field of crown restorations, significant progress has been made in the research on UV‑cured ceramic–polymer composite resins. By incorporating fillers into a light‑curable resin matrix, it is possible to develop esthetic crown materials with improved mechanical properties. The addition of fillers has been shown not to compromise printing accuracy, thereby opening up new avenues for optimizing material performance. Certain nanocomposite resins, when formulated with an appropriate filler loading, can achieve favorable mechanical properties while also exhibiting excellent radiopacity.

In the field of implantology, photopolymer resins are primarily used to fabricate surgical guides for dental implants. By integrating intraoral scans with CBCT data, 3D‑printed guides can precisely guide the placement of implants. Commercially available products already include dedicated resin systems specifically designed for producing implant surgical guides and custom impression trays.

III. Denture Base Materials

Denture bases represent an important application area for UV‑3D printing in the field of removable prosthetics. Photopolymer resins can be used to fabricate removable denture bases (artificial gingiva), which, in clinical practice, must exhibit adequate flexural strength and dimensional stability.

In terms of material systems, methacrylate oligomers and monomers are common constituents of denture base materials, with some products also incorporating inorganic fillers and pigments. Post‑curing conditions vary among different products; users should follow the specific instructions provided for each material.

IV. Functional Composite Materials

Filler reinforcement is a key approach to enhancing the performance of photopolymer resins. The application of various fillers in dental light‑cured resins has been evaluated: the properties of zirconia fillers are influenced by the printing orientation; bioactive glasses are gaining attention, particularly for their potential to stimulate the formation of hydroxyapatite crystals; and several carbon‑based fillers have been shown not to compromise printing accuracy.

Antibacterial functionality is a key focus in materials research and development. Light‑curable resins containing antibacterial agents can maintain printability and mechanical properties while exhibiting antibacterial activity, demonstrating strong efficacy against common oral pathogens and enabling sustained release of antimicrobial components. Another promising approach involves modifying oligomers by chemically grafting antibacterial moieties, which also represents a viable technical route for developing antibacterial dental light‑curing resins.

V. Conclusion

The material types used in dental UV‑3D printing have evolved from a single model resin to a diversified portfolio encompassing models, restorations, implants, orthodontics, and functional composites. Model and orthodontic materials are formulated on the basis of resin monomers to meet stringent requirements for precision and mechanical properties; restoration and implant materials leverage filler reinforcement to enable the fabrication of durable prosthetic restorations; denture base materials must balance strength with dimensional stability; and functional composites expand the performance envelope through filler reinforcement and antimicrobial modifications. As materials science continues to advance, the overall performance of dental photopolymer resins will further improve, and their range of applications will continue to broaden.

Disclaimer: The above content has been compiled from publicly available sources and is provided for reference only. If any infringement occurs, please contact us, and we will address it promptly.

Bosheng Related Product Recommendations – 3D Printing
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Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-100M	Bisphenol A epoxy acrylate	Low viscosity, high hardness, high gloss, and high body.
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA.
B-276H	Aliphatic polyurethane acrylate	High hardness, fast curing, excellent toughness, and low yellowing.
B-296	Aliphatic polyurethane acrylate	Fast curing, chemical resistance, yellowing resistance, impact resistance
B-296M	Polyurethane acrylate	Fast curing, resistant to polar solvents, yellowing-resistant, and impact-resistant.
B-301	Aromatic polyurethane acrylate	Fast curing, excellent toughness, and good sandability.
B-302	Aromatic polyurethane acrylate	Fast curing, high strength, excellent toughness, and good grindability.
B-368	Aliphatic polyurethane acrylate	Good toughness, excellent leveling, excellent bend resistance, and excellent heat resistance.
B-376	Aliphatic polyurethane acrylate	LED yellowing is minimal, and the nail polish formulation exhibits excellent stability.
B-609	Aliphatic polyurethane acrylate	Fast curing, high hardness, scratch resistance, and chemical resistance.
B-79D	Polyester acrylate	High hardness, low yellowing, and high evaporation efficiency at elevated temperatures.
Monomer Recommendation
Product Model/English Abbreviation	Product Name/Product Type	Product Features
BM1211 (HPMA)	Hydroxypropyl methacrylate	HEMA-free, high strength, low irritation, and excellent adhesion
BM2223 (TPGDA)	Di(propylene glycol) diacrylate	Good flexibility and low volatility
BM3231 (TMPTA)	Trimethylolpropane triacrylate	High crosslink density, high hardness, high gloss, and excellent wear resistance.
BM3235 (PET3A)	Pentaerythritol triacrylate	Fast curing, high crosslink density, high hardness, and chemical resistance.
BM3380 (3EO-TMPTA)	Pentaerythritol triacrylate	More flexible and less irritating than TMPTA.

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