Article 1 Children 1 Chlohexidine gluconate 1 Mouth rinse sprays Streptococcus mutans 1 Toothbrush 1 aerosol 1 bacterial count 1 bacterial growth 1 bacterium colony 1 biochemical analysis 1 child 1 chlorhexidine gluconate 1 controlled study 1 dilution 1 female 1 human 1 incubation time 1 male 1 microbial morphology 1 mouthwash 1 nonhuman 1 phosphate buffered saline 1 toothbrush bristle 1