Norio Taniguchi, in 1974 coined the term 'nanotechnology'. It includes the processing of separation, consolidation, and deformation of materials by one atom or one molecule. Nanotechnology has paved path for enhancing many material properties. Similarly so in dentistry it has led to enhancement of many traditional restorative materials such as dental composite and GIC which has made it possible to use these restorative materials in almost every region of the tooth. The aim of the present review article is to provide insights into recent developments in the field of restorative dentistry favored by nano technology such as, nano-composites, nano-bonding systems, nano-GIC, nano-varnish and sealants. It can be an aid to the dentist in clinical practice or in research field.