Nanotechnology is emerging as an interdisciplinary field that is undergoing rapid development and has brought about enormous changes in dentistry. Nanotechnology has various applications in dentistry, including dentition renaturalization, therapy for dentin hypersensitivity, complete orthodontic realignment in a single visit, covalently bonding diamondized enamel, enhancing properties of root canal sealers, and continuous oral health maintenance. This book focuses on the developments in the field of nanomaterials in dentistry.