Figure 2.
Oral hygiene differences (yes/no) between the three groups. No statistically significant differences were shown (p = 0.23).
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.