[blueerica]

If we're going to talk about bristle density, in my formerly-professional opinion, the softer the better, especially for your gums (you know, the thing supporting the bone that holds thems tooths in). Massage, don't scrape! (And brush at least twice daily. More often than that if you can swing a lunch time brush - or at least swish some water after lunch. Any less and that's when stuff gets caked on so hard you need a tougher scrub!)