No Plaque Tablets Needed The plaque disclosing monitor can rapidly reveal the position of dental plaque WITHOUT APPLYING PLAQUE DYE, so that electric toothbrush, plaque remover for teeth and water flosser can remove plaque, tartar and stain between teeth in a targeted way for effective teeth cleaning.Safe and EducativeSuitable for everyone, also baby, children and the pregnant. Invisible dental plaque under harmless purple light shows pink through the filter magically, arousing children's interest in knowing the blind spots of brushing and correcting tooth brushing habits.