Fluoride toothpaste What is tooth sensitivity? Teeth are protected by a hard layer of enamel. If this is damaged or worn away then the dentine underneath may become exposed & this can cause pain. How is tooth sensitivity caused? Gum recession exposing dentine at the gum line Erosion caused by fizzy, sweet and/or acidic drinks Wearing away of enamel caused by over-enthusiastic brushing. These factors can make your teeth hypersensitive to heat, cold, sweetness, acidity or just when brushing. Why use Sensodyne Gentle Whitening? It gently & effectively helps remove stains restoring teeth to their natural whiteness. Sensodyne Gentle Whitening is a low abrasion, fluoride containing toothpaste that, when used twice a day, provides 24/7 care for sensitive teeth. It removes plaque with regular brushing & contains fluoride to prevent decay.