Dentistry has been transformed by the use of smart materials, which include restorative materials like smart composites, smart ceramics, compomers, resin modified glass ionomer, amorphous calcium phosphate-releasing pit and fissure sealants, etc. as well as other materials like orthodontic shape memory alloys, smart impression material, smart suture, smart burs, etc. This book aims to emphasize the use of "smart materials" in dentistry to maximize the benefits of traditional restorative procedures.