Child 5 Dental Caries Humans 5 Saliva 5 Streptococcus mutans 5 child dental caries 5 human 5 saliva 5 Female 4 Male 4 female 4 isolation and purification 4 male 4 microbiology 4 Child, Preschool 3 preschool child 3 Adolescent 2 Dental caries 2 adolescent 2 chemistry 2 controlled study 2 drug effect 2 randomized controlled trial 2 Antibacterial agents 1 Antibodies, Bacterial 1 Bacterial Load 1 Band and loop 1 Bradford reagent 1 Chewing Gum 1