> Any thoughts on the environmental impact on floss vs using and disposing these brushes once a week? I'm guessing that to a first approximation it's probably

> Any thoughts on the environmental impact on floss vs using and disposing these brushes once a week? I'm guessing that to a first approximation it's probably a wash, or very close to it — and the brushes might even be better than floss in terms of total weight and volume of plastic per week. (I haven't tried measuring either quantity.)