Waterpik is a wonderful friend. I have been using many different Waterpiks over the span of 40+ years. They have saved my teeth. Back when I was in my late 20s the dentist told me to get a Waterpik as my gums were bleeding to the point that when I would bite into a banana I would leave blood stains on the banana. Since using the Waterpik my gums do not bleed even when I get them cleaned. They are very healthy. Glad no false teeth as my parents had. I am now 80.