Daily anti-cavity fluoride toothpaste to protect against sensitivity. Gentle whitening. Hardens enamel. Protects against the effects of acid erosion (acids in everyday food such as some fruit and acidic drinks, 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).