Nanotechnology is science, engineering and technology conducted at the nanoscale that deals with the development and application of nanoparticles or nanomaterials. This field is considered as the greatest of all inventions humans have ever made till date. The associated research and applications are diverse, ranging from extensions of conventional technology to new approaches based upon the property of molecular self-assembly. Nanotechnology has been greatly advanced in the past few decades and the role of nanotechnology in field of dentistry and particularly in periodontology has evolved greatly. The use of various nanoparticles and materials has brought a new insight into the prevention, diagnosis and management of periodontal disease. In the near futureinvention of dental nanorobots will help in precise diagnosis and may lead us to new treatment opportunities. This review focuses on the updated applications of nanotechnology in the field of Periodontics.