The nanosciences have recently emerged as a transformative force in dentistry and periodontics, offering fresh strategies to further the development of dental care. This paper provides a concise summary of the effect of nanoparticles, their categorisation, several methods of action, and various dental uses. This review discusses the properties of nanoparticles that lend to their use in dentistry and traces the history of the growth and advancement of nanotechnology in this area, nanomaterials' role in improving dental restorations' durability, aesthetics, and overall dental health by drawing on particular examples from restorative dentistry, prosthodontics, cosmetic dentistry, and general dentistry. In addition, the advancement of nanosciences has made periodontal regeneration easier, which has resulted in more accurate forecasting of its effects. Issues relating to safety, finances, and regulations imposed by the government have been fixed. It is encouraged that research be conducted into the full potential of nanosciences in dentistry and periodontics as a method of realising the field's bright future. Applications of nanotechnology in dentistry and periodontics can be broadly discussed under the prevention, detection, and treatment modalities.