Whitening teeth is increasing and Eastman Institute did a study to see if there are negative effects on teeth from using whitening products.
The team determined that the effects of 6 percent hydrogen peroxide, the common ingredient in professional and over-the-counter whitening products, are insignificant compared to acidic fruit juices.
It has long been known that juice and sodas have high acid content, and can negatively affect enamel hardness. The acid in orange juice markedly decreases hardness by 84% and increases roughness of tooth enamel. No significant change in hardness or surface enamel was found from whitening.
People who sip their drinks slowly over 20 minutes are more likely to have tooth erosion than those who finish a drink quickly.