Acids in everyday foods such as fruits, soft drinks, and salad dressings may cause acid oxidation. Acid erosion makes the enamel thinner, weaker and duller. Sensodyne Enamel Protector is recommended by dentists: It is a toothpaste designed for daily use. It cleans, refreshes, and helps protect your teeth from the effects of acid erosion. It keeps your teeth healthy, strong, and shiny.