@article{MAKHILLRJMS202014112218,
    title = {Nano Silica and Nano Graphene Used in Dental Fillers: The Relation Between the Mechanical
and Topography Properties},
    journal = {Research Journal of Medical Sciences},
    volume = {14},
    number = {1},
    pages = {20-25},
    year = {2020},
    issn = {1815-9346},
    doi = {rjmsci.2020.20.25},
    url = {https://makhillpublications.co/view-article.php?issn=1815-9346&doi=rjmsci.2020.20.25},
    author = {Dhulfiqar and},
    keywords = {Nanographene,nanosilica,surface morphology,compressive strength,roughness,curing},
    abstract = {In the modern medicine, there are a lot of<br>
medical uses for the nanomaterial’s because it has a<br>
physical and mechanical features that is suitable with a<br>
lot of medical technologies. That we use the nano silica<br>
and nano graphene to improvement the mechanical<br>
properties of light-curing dental fillings. Nanographene<br>
and nanosilica added to composite resin have been<br>
blended with resin composite and with precise weight<br>
ratios. The fillers formed by LED curing during three time<br>
periods 20, 25, 30 sec mold made in dimensions<br>
(6&times;3 mm). The results of the mechanical properties of the<br>
fillings containing of nano graphene (compressive<br>
strength test) showed that it is more than the compressive<br>
strength of nano silica. The reason for the high<br>
compressive strength of fillings containing of nano<br>
graphene is due to the roughness of the surface of the<br>
fillings nano graphene higher than the roughness of the<br>
fillings nano silica surface as shown in the AFM<br>
measurement of the atomic force microscope. All the<br>
results of the study are within the International Quality<br>
Standards (ISO 4049) for dental restoration materials. The<br>
increase of the time period of the curing is very important<br>
to improve the polymerization process which greatly<br>
advances the mechanical and physical properties. The<br>
study of mechanical properties has shown that the nano<br>
graphene filler to look at compressive strength is more<br>
than the compressive strength of nano-silica. The relative<br>
roughness of the RMS indicates that the surface of the<br>
formed, crystallized and super smooth solids is as<br>
indicated in the Atomic Force Microscopy (AFM).}
    }