Essential oils of many plants have been previously tested in the treatment of oral diseases and otherinfections. This study was a randomized, double-blind, in parallel with an active control study, whichaimed to evaluate the efficacy of three formulations of the Lippia sidoides Cham. essential oil (LSO) in thereduction of salivary Streptococcus mutans in children with caries. 81 volunteers, aged 6–12 years, bot...