Saliva test reveals smoking and gum disease wreak havoc on your DNA
Knowledge-focused
Completed
This study looked at 88 adults to see if smoking and severe gum disease (Stage III periodontitis) cause damage to DNA and RNA. Researchers measured two markers of oxidative stress in saliva samples. They found that people with gum disease had more cell damage, and smokers with gu…
Sponsor: Zehra Hasgül • Aim: Knowledge-focused
Last updated May 17, 2026 08:03 UTC