Fig. 4.
Cellular composition of periodontal pockets. Gram staining. Magnification: 400×. 1, superficial cells of the first type; 2, superficial cells of the second type (with pyknotic nucleus); 3, pyknotic nucleus
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.