Assessing the impact of surface treatment, aging, and post-curing conditions on the water sorption and solubility of 3D-printed denture base resins compared to conventional and milled alternatives

All 3D-printed groups, irrespective of surface treatment or curing parameters, demonstrated water sorption (Wsp) and solubility (Wsl) values within the limits defined by ISO 4049 - 2019 (Wsp < 40 µg/mm³; Wsl < 7.5 µg/mm³). While glaze application effectively reduces these properties, adequate curing time and the use of a glycerin curing medium can similarly diminish solubility. However, curing duration was not found to have a statistically significant impact on water sorption.