TY  - JOUR
TI  - Effect of zinc oxide nanoparticles on the flexural strength of polymethylmethacrylate denture base resin
AB  - This study evaluated the flexural strength of polymethyl methacrylate (PMMA)reinforced with various concentrations of zinc oxide (Zn O) nanoparticlesMaterials and MethodsNano ZnO was added in 0, 0.4, 0.6, 0.8, 1.2 and 1.4 percentage to PMMA denturebase material. 60 specimens of heat cure polymerizing acrylic resin of dimensions10mm x 4mm x 80mm were fabricated in accordance to ISO 20795-1-2013. Thespecimens were divided into 6 groups. Acrylic specimens were processed accordingto manufacturer’s instruction. Three-point bending test was performed to evaluatethe flexural strength. Surface analysis was performed with scanning electronmicroscopy (SEM) to observe the fracture surfaces of specimens. ANOVA and Tukeytests were used for the statistical analysis (p < 0.05).ResultsStatistical analysis revealed significant differences in strength between groups. Theflexural strength improved with the addition ZnO nanoparticles. Highest meanvalue was observed in Group nZn -14 (91.31 MPa) and lowest in control GroupnZn-0 (61.36 MPa). ANOVA and Tukey’s honestly significance test found statisticalsignificant differences among the groups ( p<0.001).ConclusionThe addition of ZnO nanoparticles in all concentrations increased the flexuralstrength of acrylic resin when compared to the control group.
AU  - Santhanam, Vikram
AU  - CHANDER, N.Gopi
DO  - 10.26650/eor.20200063
PY  - 2020
JO  - European oral research (Online)
VL  - 54
IS  - 1
SN  - 2630-6158
SP  - 31
EP  - 35
DB  - TRDizin
UR  - http://search/yayin/detay/347577
ER  -