Sensodyne ProNamel Gentle Whitening toothpaste is formulated to protect against acid erosion and to remove stains. Plus it contains fluoride, so it provides all the benefits of regular toothpaste. Dentists have reported a growing dental health concern due to changing modern diets: “acid erosion.” Even teeth without cavities can be affected. Acids in everyday food, like orange juice and wine, can dissolve minerals from our teeth, softening the enamel surface which is then more easily worn away. As the enamel becomes thinner, teeth can become visibly less white, weaker and sensitive.