Objective: Estimated the caries risk of children under 5 years of age in the urban area of the northern sector in Quito, Ecuador. Materials and methods: The sample consisted by 102 pairs; child and parents and / or representatives, who have been accepted a prior informed consent, they were subjected to the management of caries by risk assessment survey (CAMBRA) to determine the risk of presenting caries in their children. We were also done a clinical examination to assess the presence of caries and plaque. The data was compiled in an Excel table and were analyzed in SPSS program. Results: 60.8% of the minor participants belonging to the female gender. CAMBRA survey has a high-risk measure. Meanwhile, the clinical examination determined that the temporal teeth caries index was 4.62 with the presence of a plaque in 86% of the evaluated population. Conclusions: According to the survey, CAMB...