Reconnecting Practicing Hygienists with the Nation's Leading Educators and Researchers.

Classifying Periodontal Diseases

In 1989, a classification system was proposed that included five types of periodontitis: adult periodontitis, early onset periodontitis, periodontitis associated with systemic disease, necrotizing ulcerative periodontitis, and refractory…

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

SAVE BIG ON CE BEFORE 2026!

Coupon has expired

Promotional Period: 12/13/25 – 12/31/25

Get Special CE Savings!