Piksters bristles reach into and clean the indents on the surfaces between your teeth - especially at the gum line of molars and premolars. Floss is not as effective in this situation, although it is very effective in other areas and should be used in conjunction. Piksters remove plaque and food particles in areas normal toothbrushes do not reach as effectively. Plaque is a significant factor in decay and gum disease. Decaying food particles can also cause bad breath