The classic gum-disease bacterium. P. gingivalis should be undetectable in a healthy mouth — when it shows up, it's a flag for active gum disease. Linked to heart disease, rheumatoid arthritis, and possibly Alzheimer's. Lower is unambiguously better. Undetectable is the goal.
Floss daily, get regular professional cleanings, and treat any gum bleeding promptly. P. gingivalis lives in deep gum pockets — places brushing alone can't reach.
Skipping dental visits, ignoring bleeding gums, and smoking. Each helps create the deep, low-oxygen pockets where P. gingivalis can grow.
Synthesized from 11 peer-reviewed sources · Last updated May 2026
This information is for wellness purposes only and is not a medical assessment. Always consult a medical professional about any health concerns.