Influence of 3D-Printing system on the mechanical and surface properties of a 3D-Printed denture base resin
Year: 2026
Type: article
Abstract: Three-dimensional (3D) printing is increasingly used for denture base fabrication, but printer-dependent processing may alter the properties of the same resin. This in vitro study compared Lucitone Digital Print 3D Denture Base resin fabricated with two manufacturer-validated systems: Carbon M2 (continuous liquid interface production) and Asiga MAX UV (digital light processing) (n = 10 per printer per outcome). After standardized cleaning, post-curing, and 7 days of water storage at 37 ± 1 °C, flexural strength, fracture toughness, fracture work, Vickers hardness, and surface roughness were evaluated. Asiga specimens showed significantly higher flexural strength (83.5 ± 2.0 vs. 76.9 ± 1.2 MPa; p < 0.0001), fracture work (1853 ± 330 vs. 1452 ± 295 J/m 2 ; p = 0.010), and Vickers hardness (12.5 ± 0.7 vs. 11.4 ± 0.6 kg/mm 2 ; p = 0.007). Fracture toughness, expressed as Kmax, did not differ significantly between Carbon and Asiga specimens (2.91 ± 0.36 vs. 2.75 ± 0.27 MPa·m^0.5; p = 0.287), nor did surface roughness (1.72 ± 0.24 vs. 2.13 ± 0.84 µm; p = 0.283). Thus, the printer system influenced selected mechanical properties of an identical denture-base resin, highlighting the importance of considering the complete resin–printer–post-processing system when interpreting material performance.
Language: English
Subfield: General Dentistry
Field: Dentistry
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,000
OpenAlex ID: W7225414533