Abstract: In the modern medicine, there are a lot of
medical uses for the nanomaterial�s because it has a
physical and mechanical features that is suitable with a
lot of medical technologies. That we use the nano silica
and nano graphene to improvement the mechanical
properties of light-curing dental fillings. Nanographene
and nanosilica added to composite resin have been
blended with resin composite and with precise weight
ratios. The fillers formed by LED curing during three time
periods 20, 25, 30 sec mold made in dimensions
(6×3 mm). The results of the mechanical properties of the
fillings containing of nano graphene (compressive
strength test) showed that it is more than the compressive
strength of nano silica. The reason for the high
compressive strength of fillings containing of nano
graphene is due to the roughness of the surface of the
fillings nano graphene higher than the roughness of the
fillings nano silica surface as shown in the AFM
measurement of the atomic force microscope. All the
results of the study are within the International Quality
Standards (ISO 4049) for dental restoration materials. The
increase of the time period of the curing is very important
to improve the polymerization process which greatly
advances the mechanical and physical properties. The
study of mechanical properties has shown that the nano
graphene filler to look at compressive strength is more
than the compressive strength of nano-silica. The relative
roughness of the RMS indicates that the surface of the
formed, crystallized and super smooth solids is as
indicated in the Atomic Force Microscopy (AFM).