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 measurement of the nasopalatine canal angle in sagittal section.
Yellow line = Stenson foramen (SF) width; blue line = incisive foramen (IF) width; white line = the line connecting anterior nasal spina (ANS) and posterior nasal spina (PNS); red line = the line passing through the midpoints of the widths of IF and SF.
