The risk of dental caries can be estimated by analysing and integrating several causative factors. In daily practice, caries risk assessment is determined to assess the individual cases risk, to identify the main causative factors and to recommend specific preventative measures for that existents requirements. Caries risk assessments during treatment can serve as a monitoring aid for the success of the treatment. They are veritably useful for screening populations in community preventative programmes by relating caries-prone children who need further ferocious preventative care.