In the present study, the restorative composite resin was fabricated by impregnating electrospun PVDF/MWCNTs nanofiber membrane within the based dental polymer (BisGMA/ TEGDMA) using photo-polymerization. The flexural strength (FS) of the base dental polymer resin was significantly improved by the addition of MWCNTs in PVDF electro-spun fabrics (by mass fraction of 0.1 and 0.25 wt%). With respect to the water sorption/solubility analyzing, all nanofiber reinforced dental resin samples showed significantly less Wsp values than those for the neat resin samples (P<​0.05). On the other hand, the pure PVDF nanofiber reinforced composites had the lowest solubility in water.