Plaque and tartar causing bacteria can be found in the smallest and most difficult to reach areas of your mouth, particularly between teeth and below the gum line. These areas cannot be reached by brushing alone.The intelligent iQ+ ActiveOxi Technology within UltraDEX works with your natural oral pH level to release the appropriate amount of active ingredient to meet the individual needs of your mouth. UltraDEX interdental tape slides comfortably between teeth to effectively remove plaque & debris above and below the gum line. In addition, the anti-bacterial agent has been shown to kill bacteria that can cause gum problems, tooth decay & plaque and also whiten teeth. UltraDEX is avaliable in: daily oral rinse, toothpaste, oral spray, interdental tape and wire-free brushes for a comprehensive oral care regime. Dierctions for use: Use after brushing, between meals and before rinsing. For best results use with UltraDEX Low-Abrasion Toothpaste and Daily Oral Rinse. Contains Sodium Fluoride. Active ingredients: Coated with iQ+ ActiveOxi Technology powered by Stabilised Chlorine Dioxide and Sodium Fluoride.