RESUMEN
Objective: To determine the caries risk by Caries Management by Risk Assessment (CAMBRA) for children with mixed dentition attending a Basic Health Unit (BHU), identifying the main dental caries disease indicators, risk factors and protective factors. Material and Methods: The sample consisted of 89 children of both genders aged 8-12 years. Clinical and bitewing radiographic examinations were performed by a calibrated examiner, as well as the filling of the adapted CAMBRA form. Dental caries disease indicators, risk factors and protective factors of all subjects were determined. Chi-square test and multivariate logistic regression analysis for all CAMBRA variables were applied (p<0.05). Results: Caries risk was considered high in 38.2% of patients, moderate in 32.6% and low in 29.6%. The most frequent disease indicator was white spot lesion on smooth surfaces (73.0%), the most common risk factor was visible biofilm (78.7%) and protective factor was fluoridated water (100.0%). Children with "moderate risk" and "high risk" had risk of visible cavities or radiographic penetration of the dentin (OR=14.689; OR=574.363, respectively) compared to patients with "low risk". Conclusion: Caries risk determined as "high" and "moderate" were classifications most observed among children attending BHU. White spot lesions on smooth surfaces were the most frequent dental caries disease indicators and visible plaque on tooth surface and community water fluoridation were the most significant risk factors and protective factors, respectively.