Caries is a dynamic process which can develop either progressively or regressively under the all-determining influence of oral health behaviour. Management of caries therefore involves first of all: diagnostics, monitoring and preventive care and treatment which result in good oral health behaviour. The oral care provider should recognize all phases of progression of the caries process, and should be able to differentiate the symptoms which indicate an active or inactive process. A well maintained patient dossier is necessary to monitor this process over time. Following this procedure, the oral care provider is in a position to guide the patient with relevant information in order to achieve the final objective, good oral health.