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.
First molar showing a tall distance between the chamber floor and roof (top left), a shorter such distance (top right), and others showing calcified pulp chambers (bottom). The top left molar curves strongly at the coronal 1/10 of the mesial canal
