Whitening strips may damage teeth: study
Teeth-whitening products used to maintain a dazzling smile may cause hidden tooth damage, research suggests. Studies have found that the active ingredient in over-the-counter whitening strips, hydrogen peroxide, fragments dentin protein. Dentin lies beneath the tooth’s enamel outer layer and provides it with support. It is sandwiched between the enamel and connective tissue that binds… Read More »