Clinically proven 93% more effective than flossing at reducing gum disease. Study measured reduction in gum bleeding and inflammation after 28 days. Measures showed improvements from 40%-93%. Healthier gums in just 14 days. Removes bacteria deep between teeth and below gumline where brushing alone will not reach. Massages gums to make them strong and healthy. Ideal for cleaning around braces and other dental work. 10 pressure settings. New design has 20% smaller footprint than previous models. Reservoir lid with tip storage, to keep the reservoir clean and to neatly stow away extra tips. Accessories: 3 standard jet tips, 3 tongue cleaner jet tips, 1 deep cleaning Pik Pocket tip, 1 ortho tip to clean around braces and other dental work.