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OBJECTIVE	The purpose of this study was to verify the influence of prebrushing mouthwashes on dental plaque removal in children .
METHODS	This study had a double-blind , randomized , controlled , crossover , 25-day experimental design , including 38 12 - to 14-year-olds .
METHODS	Four solutions were used as prebrushing mouthwashes ( Colgate Plax Magic , Listerine Cool Blue Agent , water and dye , and water ) by each participant with seven days ' washout .
METHODS	The plaque index was evaluated before and after tooth-brushing during the experimental period .
RESULTS	Intergroup comparisons showed no significant differences in plaque reduction among evaluated solutions ( Friedman test , P > .78 ) .
RESULTS	Significantly more plaque was present before vs. after tooth-brushing ( Wilcoxon rank test , P < .001 ) , independent of the surface ( buccal or lingual/palatal ) .
CONCLUSIONS	Use of prebrushing mouthwashes by children does not influence plaque removal by tooth-brushing .

