20 Fun Facts About history of dentistry pdf

http://chancemglp195.edublogs.org/2019/07/14/10-things-your-competitors-can-teach-you-about-teeth-whitening-treatment/

The process of tooth whitening lightens the colour of a tooth. Tooth bleaching can be achieved by either altering the intrinsic colour or by eliminating and controlling the development of extrinsic discolorations.