Adult 1 Biofilm fluid Biofilm solids 1 Biofilms 1 Cross-Over Studies 1 Dental caries 1 Dental plaque 1 Double-Blind Method 1 Female 1 Fluorides 1 Humans 1 Mouthwashes 1 Saliva 1 Toothpastes 1 adult 1 biofilm 1 chemistry 1 controlled study 1 crossover procedure 1 double blind procedure 1 drug effect 1 female 1 fluoride 1 human 1 mouthwash 1 randomized controlled trial 1 saliva 1 toothpaste 1