In 1985, Dr. David Hall introduced teeth bleaching in Iowa, after learning about it in a cosmetic dentistry course he took from Dr. Ron Goldstein, the grandfather of modern cosmetic dentistry.

In 1991, he published landmark research on teeth bleaching in the prestigious international dentistry journal, Quintessence International. In this research, which was later quoted extensively in other journals and cosmetic dentistry textbooks, he demonstrated that etching teeth was not helpful in bleaching them. This is one of the small bits of information that helped make teeth whitening easier, less expensive, and eliminated the risk of damaging the teeth.

Read more about teeth bleaching by consulting that page on this website.