NickelMetal NanoparticlesCalcium HydroxideAluminum HydroxideHydroxidesSodium HydroxideRats, WistarAmmonium HydroxideMagnesium HydroxideNitric Oxide SynthaseRoot Canal IrrigantsOxidesNitric Oxide Synthase Type IIPotassium CompoundsZinc OxideNitric Oxide Synthase Type IIIDental Pulp NecrosisDemeclocyclineNitric Oxide Synthase Type IRoot Canal Filling MaterialsHydrogenase