Water fluoridation is the process of adding a small amount of fluoride to public drinking water supplies. This practice aims to reduce the incidence of tooth decay and improve overall dental health in communities. Fluoride helps strengthen tooth enamel, making it more resistant to cavities. Many health organizations, including the World Health Organization and the Centers for Disease Control and Prevention, support water fluoridation as a safe and effective public health measure. The levels of fluoride added are carefully regulated to ensure they are safe for consumption while still providing dental benefits.