Sensodyne Fresh Mint, Sensodyne Fresh Impact, Sensodyne Cool Gel, Sensodyne with Baking Soda, Sensodyne Tartar Control, Sensodyne Tartar Control Plus Whitening, Sensodyne Original Flavor and Sensodyne Extra Whitening contain fluoride for cavity prevention and Potassium Nitrate clinically proven to reduce pain sensitivity for relief of dentinal hypersensitivity resulting from the exposure of tooth dentin due to periodontal surgery, cervical (gum line) erosion, abrasion or recession which causes pain on contact with hot, cold, or tactile stimuli.