Caries Risk" is defined as the probability that an individual will develop at least a certain number of carious lesions reacting a giver stage of disease progression during a specified time conditional on his/her exposure status remaining stable during the period in question. This is generally considered "high" or "low". "Caries risk assessment" is the identification of individuals at high risk for future caries. Assessment of caries risk is an important part of contemporary dental practice.. Thus, this book demonstrate the risk assessment can be tested for how well it correlates with the future disease.