Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The wear on the occlusal/incisal surfaces of the upper anterior teeth. The wear is caused by a combination of erosion and attrition. The “cupped out or ditched” areas result from the action of acids, whereas the flatter surfaces are caused by attrition
