The Waterpik WP450 Cordless Plus Water Flosser is clinically proven to be significantly more effective than floss for healthier gums, while offering the convenience and portability of a cordless device. Most dental professionals recommend brushing and flossing to keep your teeth and gums healthy, but unfortunately most people don’t floss on a regular basis, and most studies have shown that most people find flossing to be a painful or unpleasant chore. Waterpik has created an effective alternative to flossing that feels great and is simple to use. The Waterpik Cordless Plus Water Flosser goes beyond flossing to keep your teeth and gums healthy and clean, delivering a precisely controlled pulsating stream of water pressure to remove debris and bacteria lodged deep between teeth and below the gum line. In fact, it has been shown that the WP450 can clean up to three times deeper than brushing alone. In addition, it massages and stimulates the gums to improve circulation. The WP450 helps promote strong and healthy gums, leaving you with a clean, fresh mouth sensation. According to Waterpik, there are over 60 published clinical studies that show the Waterpik Water Flosser provides significant oral health benefits for anyone who desires healthier teeth and gums. These studies also show that the WP450 is especially effective for those who have braces, implants, crowns, bridges, and other dental work. For these reasons, Waterpik is one of the most recommended brands by dental professionals. The Waterpik WP450 is a device that is loaded with lots of great features with two speed settings and includes four accessory tips: The Classic Jet Tip: Provides cleaning deep between teeth and below the gum line. The Orthodontic Tip: Excellent for cleaning around braces. The Plaque Seeker Tip: For additional plaque removal around bridges, crowns and veneers and a Tongue Cleaner: Removes bacteria that causes bad breath. The WP450 also features an advanced ergonomic handle that is smaller than previous models and easier to hold. Refilling the reservoir is simple and can be completed in a snap, and since this Water Flosser is rechargeable, you'll never need to buy new batteries.