<human>:  What is the best and most efficient way to brush your teeth?
<bot>: The best and most efficient way to brush your teeth is to brush for two full minutes, twice a day. Make sure to use a soft-bristled toothbrush and fluoride toothpaste, and cover every surface of each tooth, as well as your tongue, with short, gentle strokes. Be sure to replace your toothbrush every 3 to 4 months for optimal oral health.