Translucency of nanoparticle-reinforced PMMA denture base material: An <i>in-vitro</i> comparative study

The aim of this study was to assess the translucency denture base acrylic resin reinforced with zirconium dioxide (ZrO2NPs), silicon (SiO2NPs), and diamond (DNPs) nanoparticles. A total 130 heat-polymerized discs (15×2.5 mm) were fabricated conventionally divided into control experimental groups according nanoparticle type concentration (0.5, 1, 1.5, 2.5 wt%). Unmodified specimens served as control. All thermocycled (5,000 cycles). Translucency measured using a spectrophotometer. ANOVA post-hoc Turkeys’ test used for data analysis at ?=0.05. modified PMMA significantly lower than (p<0.05) except 0.5% ZrO2NPs SiO2NPs (p>0.05) which exhibited highest values among groups. As NPs increased, decreased lowest value seen 2.5% DNPs (1.18±0.10). addition ZrO2NPs, SiO2NPs, translucency.