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.
Relationship between the internal and external morphologies. a-b A representative sample with 6 apical foramina (white arrows). (a) External surface of the root. (b) The canals (in red) in relationship with the translucent external morphology. (c, d) A representative sample with 3 apical foramina (white arrows). (c) External surface of the root. (d) Root canals (in red) in relationship with the translucent external morphology
