2007-07-15 03:22 The Waterpik WP-100 Ultra Dental Water Jet is clinically proven to be more effective than floss for healthier gums. Most dental professionals recommend brushing and flossing to keep your teeth and gums their healthiest. Unfortunately, nearly 80-percent of Americans don't floss on a regular basis, and most people find flossing to be a painful or unpleasant chore. Finally, there is an effective alternative to flossing that feels great and is simple to complete.