flexural properties of new nanocomposites for dental restorative that based on (bis–gma) material and polymerized by light curing

Six types of new nanocomposites materials were synthesizing as dental composites, that based on the different sets of unsaturated monomers (where they know by groups name of (a, b, c, d, e, and e)) in addition to 2, 2 propyl bisphenol glycidyl dimethacrylate (bis-gma) and inorganic nanofillers [sio2, zro2, ha, and al2o3] which adding individually, were characterized for the reason of assessed their promising applications as restorative materials in the dentistry field. the flexural strength and flexural modulus of the prepared dental nanocomposites were examined and the results were widely discussed and connected to the composition materials of these composites. the results show that the composites with specific monomers (bis-gma, meth acrylamide, methacrylic acid, and 1-6 hexanediol methacrylate) for the group (d) that reinforced with silica nanoparticle have elevated flexural properties as compared with other types of the prepared nanocomposite, where these values reached to(144 mpa and 5.4 gpa) for flexural strength and flexural modulus respectively.