Smart materials in dentistry refer to advanced materials that can respond to external stimuli or changes in their environment in a predictable and beneficial manner. These stimuli may include temperature, pH, moisture, stress, and electric or magnetic fields. Smart materials have the potential to revolutionize dental treatments by enhancing the functionality, durability, and aesthetic outcomes of dental restorations and appliances. Smart materials in dentistry hold significant promise for improving dental treatments and patient outcomes. As research and technology continue to advance, these materials are likely to become more integral to dental practice, offering innovative solutions to longstanding dental challenges.