#1 Dentist Recommended Brand For Sensitive Teeth - Dentists have been recommending Sensodyne for over 20 years. Brushing twice a day with Sensodyne builds a "shield of protection" against painful sensitivity. And, since Sensodyne has fluoride, it helps protect against cavities too.Builds increasing protection against painful sensitivity of the teeth to cold, heat, acids, sweets, or contact, and aids in the prevention of dental cavities.This product contains no sugarContains Potassium Nitrate clinically proven to reduce painful sensitivityProvides fast relief within two weeksContains fluoride for cavity protectionHas a great taste keeps mouth feeling fresh and clean.