The Addition of Copper Nanoparticles to Mineral Trioxide Aggregate for Improving the Physical and Antibacterial Properties

The physical and antibacterial properties of mineral trioxide aggregate (MTA) have been improved by adding copper nanoparticles (CuNP). CuNP colloid was synthesized reacting CuCl2·2H2O NaBH4 as the reducing agent using C6H8O6 capping agent. Cu(II) concentration varied 3.0, 6.0, 9.0 mM to produce CuNP-3, CuNP-6, CuNP-9 colloids, respectively. colloids were characterized with a UV-Vis spectrophotometer TEM. MTA hydrated at mass-to-volume ratio 2:1 Cu-MTA-3, Cu-MTA-6, Cu-MTA-9, All products XRD SEM-EDX. compressive strength, pH, Ca ion release, solubility measured, activity tested. results showed spherical shape particle size ~28.08 nm. Adding increased solubility, value 4.78±0.38 MPa; 9.01±0.03; 1718±63 ppm, 22.48±0.37%, highest occurred for an inhibition zone 10.15±0.47 mm against S. aureus 11.93±1.16 P. aeruginosa. findings show potential application product endodontic materials containing agents.