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Nanotechnology is much more than the study of small things. It is the research and development of materials, devices, and systems exhibiting physical, chemical, and biological properties that are different from those found on a larger scale. Nanotechnology can be best understood as a broad collection of technologies from diverse fields such as physics, materials science, engineering, chemistry, biochemistry, medicine, and optics each of which may have different characteristics and applications. About 80% of Indian adults have some form of dental disease. There are a variety of new dental products available, ranging from implants to oral hygiene products that rely on nanoscale properties. This paper deals with in depth analyses and development of nano hydroxyapatite and its various applications in periodontics such as bone grafting, tissue engineering, drug delivery. This article also includes studies of new products blocking dentine tubules to alleviate hypersensitivity, drug delivery systems, periodontal bone defect systems, characterizing nanoparticle coated dental implants.