ArticleJournal of Indian Prosthodontic Society2026
Effect of glycerol-assisted ultraviolet postcuring duration on residual monomer release from 3D-printed denture base resins.
Article in Journal of Indian Prosthodontic Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
aimThe widespread use of printable resins contrasts with the limited evaluation of residual monomer release, that remains a significant concern for biocompatibility. Fewer studies estimated the monomer releases in printable denture base resins. The study evaluated the effect of glycerol-assisted UV post-curing at different time intervals on residual monomer release from 3D printed denture base resin. STUDY SETTING AND
designInvitro experimental study. MATERIALS AND METHODOLOGY: Forty standardized specimens of 50 mm diameter × 3 ± 0.1 mm thickness were made using a DLP 3D printer in accordance with ISO 20795-1:2013 specifications. Following printing and ethanol washing, specimens were immersed in glycerol and subjected to UV post-curing at 0, 10, 20, and 30 minutes. Residual methyl methacrylate (MMA) release was measured by means of high-performance liquid chromatography (HPLC), and values were compared across groups. STATISTICAL ANALYSIS: Kruskal-Wallis test and Dunn's post hoc test with Bonferroni corrections.
resultsReduction in MMA release was observed with increasing post-curing duration ( P < 0.001). Mean values decreased progressively from 26.68 ppm (0 min) to 7.78 ppm (30 min), with the 30-minute group demonstrating the lowest monomer elution.
conclusionGlycerol-assisted UV post-curing significantly reduced residual monomer release. A 30-minute curing duration appears optimal for improving polymerization and enhancing biocompatibility.
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