Nanotechnology is the art and science of material engineering at the Nano scale size (1- 100 nm). Nanotechnology consists of the process of separation, consolidation and deformation of materials by one atom or one molecule. It’s one often most popular areas of current research and has developed in multiple disciplines. Nanotechnology has been used in the development of restorative materials with significant success. This comprehensive review article highlights the importance of Nanotechnology in dentistry