Aim. To evaluate the efficacy of dentifrice containing brazilian red propolis (BRP) in adolescents under orthodontic treatment. Materials and Methods. This is a randomized, double-blind, clinical trial. A total of 92 participants free from caries were randomized into 2 groups; the first received fluoride dentifrice, and the second received fluoride dentifrice incorporated with BRP. The gingival bleeding index (GBI) was recorded, and saliva was collected on the baseline (D0) and after 28 days (D28) for microbiological analysis. Data from GBI and Colony Forming Units (CFU) (log10) were expressed as mean and standard deviation. Results. The two groups reduced GBI significantly, with no difference in the intergroup analysis. In the intragroup analysis, it was observed that G2 (p<0.001) had a significant reduction for Gram-negative bacteria, while there was significance (p<0.001) in the intergroup analysis when compared with G1. For S. mutans bacteria, it was observed that only G2 had a statistically significant reduction (p<0.001), and there was significant reduction (p=0.006) in the intergroup analysis of the G2 group when compared with G1. Conclusions. Dentifrice containing BRP demonstrated better clinical and microbiological activity. Future studies are needed to better identify effects to establish the use of dentifrice containing propolis in biofilm control.

Objective: To examine the relationship between nutritional status and dental caries of schoolchildren from Sobral, Ceará, Braszil. Methods: Dental health and nutritional status of 92 children studying in two different schools and aging 5 years old were evaluated. The nutritional status was evaluated using the Body Mass Index (BMI), and the dental health status was evaluated using the Decayed, Missing, and Filling Tooth Index (DMFT-index). An interview with the parents of the children was also performed to investigate the socioeconomic profile and nutritional habits of the children. Results: A DMFT-index of 1.97 was found, and 39.6% of the childrenpresented overweight. Higher prevalence of dental caries was associated with low income, public schools, and less schooled parents. The variable overweight presented the inverse situation found for dental caries. Moreover, it was observed lower prevalence of caries in overweight children. Conclusion: Dental caries and nutritional status exhibited different behaviors in the population studied, which were driven by the sociodemographic profile of the family.