By Dr. Sawsan Nasreddine,Dr. Fida Sayah, Dr. Fady Kassir, and Pr. Mounir Doumit,
of the Lebanese University, School of Dentistry
Discoloration of the tooth can erode the sparkle from a smile. There are many factors that contribute to tooth staining. It is important to understand that in some cases staining can be prevented but in others it cannot. There are two types of tooth discoloration: extrinsic which affects teeth from the outside and intrinsic which affects the teeth from the inside.
The purpose of this article is to review literature on the etiologies and classification of tooth staining and discoloration.
Key words: Etiology, classification, extrinsic discoloration, intrinsic discoloration
The appearance of the dentition is of concern to a large number of people seeking dental treatment and the color of the teeth is of particular cosmetic importance. Tooth discoloration is usually esthetically displeasing and p…