Unusual Root Staining of the Third Molars in a Patient Exposed to Lead and Tetracycline

Abstract

Enamel formation of the third molars takes place between the age of 12 and 16, while root formation takes place between the age of 18 and 25 [9]. A history of exposure to multiple contaminants, such as lead and tetracycline, may obscure the accuracy of a diagnosis, especially when it is well-known that these particular contaminants stain the root of an individual's teeth in a similar fashion. In some cases, lead is visibly deposited at the cervical line of the teeth (Figure 4). This is