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.
Group of patients with periodontal disease or healthy according to age, sex, and smoking habit. Legend: smokers: 43.66%; non-smokers 53.34%. There was no statistically significant correlation (p > 0.05) between periodontal stage, male/female (M/F) and smoking
