Did you know that teeth whitening as we know it today has been around for over a century?
According to a report by the America Dental Association (ADA), way back in 1877, oxalic acid was used as a whitening agent. In 1884, tooth bleaching was carried out using hydrogen peroxide; and in 1918, the use of high-intensity lights was introduced to hasten the bleaching process.
But then, there were very few cosmetic dentists and teeth whitening wasn’t a topic generally talked about.
It was in the 1980s when in-office bleaching techniques became wide spread in the dental profession. Then, the 1989 publication of Haywood-Haymann paper “Nightguard Vital Bleaching” created much buzz on the use of carbamide peroxide as an active ingredient. Read more