The power of prevention Use an oral irrigator(such as Powerfloss), which is a handheld gadget that rapidly pulses a small jet of water into your mouth, to flush out the bad bacteria. It can go deeper than a brush or floss can reach. Carry a toothbrush with you and brush after every meal although it is not necessarily good advice to brush immediately after a meal: if you have consumed potentially erosive, like cola or citrus fruit, this can cause added damage to dental anything brushing an hour after a meal is better. enamel. In this instance, brushing an hour after a meal is better