For orthodontic appliances and dental braces. Clinically proven to remove three times as much plaque as traditional string floss and significantly improve gum health for orthodontic patients. The innovative tapered brush removes hard-to-reach plaque around orthodontic brackets and wires. It also helps flush out bacteria and food debris from around the teeth and under the gums. Replace every 3 months 2 color-coded Water Flosser replacement tips per package (color of tips may vary).