FERNÁNDEZ MONTERO, J. G. Dental usage of Costa Rican propolis: Based on research: “Determining the level of in vitro antimicrobial effectiveness of propolis high in phenolic compounds from Costa Rica on the species streptococcus mutans and streptococcus sanguinis in the Universidad Latina de Costa Rica in january and august 2012.”. Odontología Vital, v. 1, n. 24, p. 44–53, 1 Jan.2016.