The invention relates to a masterbatch composition that can be used in the production of dental prostheses, comprising: a nanoscale filler formed by between 0.05 - 0.20 wt.-% silver nanowires, between 0.05 - 0.20 wt.-% copper nanowires, and between 0.08 - 2.00 wt.-% zinc oxide nanowires； and liquid components comprising between 45 - 65 ppm methyl methacrylate monomer with an inhibitor, between 0.3 - 1.0 wt.-% ethylene glycol dimethacrylate-type crosslinking agent, and traces of a N,N dimethyl-p-toluidine-type activator. The invention also relates to the production method thereof.COMPOSICIÓN DE UN MASTERBATCH ÚTIL EN LA ELABORACIÓN DE PRÓTESIS DENTALES QUE COMPRENDE NANOALAMBRES DE PLATA, COBRE Y DE ÓXIDO DE ZINC； PROCESO PARA ELABORAR UN MASTERBATCH A PARTIR DE DICHA COMPOSICIÓN； Y RESINA ACRILICA QUE COMPRENDE EL MASTERBATCH
