Materials and Methods: After IRB (UEB008-2014) and informed consent from parents of 360 7-yr. olds in 9 Colombian dental schools’ clinics, comparison of the two groups (n = 180 each) was conducted in terms of: gender, caries risk likelihood (low/moderate/high), prevalence of caries experience (dmf/DMF-S, d/D: ICCMSTMMod, Ext) and-mean number of surfaces with caries experience (both dmf/DMF-S, d/D:ICCMSTMMod, Ext; and dmf/DMF-S, d/D:ICCMSTMIn, Mod, Ext). Results: The sample corresponded to 194 girls and 166 boys (Group-A: 105 and 74; Group-B: 89 and 92, respectively)(Χ2 ; p = 0.07). The prevalence of caries experience (dmf/ DMF-S, d/D:ICCMSTMMod, Ext) was 74.7% (Group-A: 76.5%; Group-B: 72.9%) Χ2 ; p = 0.27). The mean dmf/DMF-S (d/D: ICCMSTMMod, Ext) was6.8±8.2 (Group-A: 7.4±8.5; Group-B: 6.3±7.8) (Mann-Whitney test; p = 0.21), increasing to 15.3±12.9 (Group-A: 15.9±13.1; Group-B: 14.8±12.6) (Mann-Whitney test;p = 0.47), when including d/D: ICCMSTMIn. The percentage distribution of caries-risk likelihood was: high: 54.2%; moderate: 35.8%; low: 10.0% (Group-A: 57.5%, 33.5%, and 9.0%, and Group-B: 50.8%, 38.1%, and 11.1%, respectively) Χ2 ; p = 0.43). Conclusion: The baseline data of this schoolchildren caries managements’ multicentre RCT shows that Group A (ICCMSTM) and Group B (Colombian-Health-System) individuals are similar in terms of gender and caries related characteristics.