This little brush has really improved my oral hygiene. And it's that simple. I've been using it for 2 years. After brushing my teeth, I brush the toothpaste foam in my mouth along the entire gum line, inside and outside, up and down. I also run it in the gap between your teeth where you floss. This adds about a minute to my routine. The difference is that it gets all the spots that flossing and brushing miss. My mouth is much cleaner. My dentist and hygienist also agree. Try it. You will not regret it!