Nanomaterials have been playing a significant role in basic scientific innovation and clinical technological change of Prosthodontics. It shows that many properties such as modulus of elasticity, surface hardness, polymerization shrinkage, and filler loading, of materials used in prosthodontics can be significantly improved after their scales were reduced from micron-size into nano size by nanotechnology and that the performances of composites can also be enhanced by adding appropriate nanomaterials. Nano science is a new approach and will bring changes in fields of medicine, dentistry,...