Dental caries is reported to be one of the oldest and most common diseases found in humans. Dental caries is a prevalent chronic infectious disease resulting from tooth-adherent cariogenic bacteria that metabolize sugars to produce acid, which over time demineralizes tooth structure.With the recent shift from the surgical model, which emphasized restorative treatment, to a medical model of disease management, newer strategies emphasize disease prevention and conservation of tooth structure. For early detection and monitoring of caries, rather than waiting until a cavity is formed and restorative treatment is needed. The primary objective of dental caries prevention is to reduce the incidence and severity of tooth decay, thereby maintaining optimal oral health. The purpose of this book is educating and empowering individuals to take control of their oral health, promoting cost effectiveness, and beneficial preventive measures, and supporting broader public health goals.