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.
Illustration of the quantitative SEM margin analysis performed in this study. (a) SEM image of the entire proximal margin with classified continuous (green), non-continuous (red), and not judgeable (yellow) margin segments; (b) detail of image (a) with classified margin segments at 200 × magnification; (c) same image as (b) without labeled margin segments.
