Subject: Change in Perio Classification
Resent-From: all_users@mail.db.uth.tmc.edu
Date: Mon, 26 Jun 2000 15:54:45 -0500
From: "John Valenza" <jvalenza@mail.db.uth.tmc.edu> Internal
To: all_users@mail.db.uth.tmc.edu

TO ALL CLINICAL FACULTY, STAFF, & STUDENTS (please share with those who
do not have email):

The American Academy of Periodontology has recently published changes in the classification system for periodontal diseases. These changes are from the 1999 International Workshop for a Classification of Periodontal Diseases and Conditions. Highlights of the changes are as follows:

• Addition of a section on "Gingival Diseases"
• Replacement of "Adult Periodontitis" with "Chronic Periodontitis"
• Replacement of "Early-Onset Periodontitis" with "Aggressive Periodontitis"
• Elimination of a separate disease category for "Refractory Periodontitis"
• Replacement of "Necrotizing Ulcerative Periodontitis" with "Necrotizing Periodontal Diseases"
• Addition of a category on "Periodontal Abscess"
• Addition of a category on "Periodontic-Endodontic Lesions"
• Addition of a category on "Developmental or Acquired Deformities & Conditions"

The American Academy of Periodontology has granted us permission to post the full article, "Development of a Classification System for Periodontal Diseases and Conditions", by Gary C. Armitage, at our web site. You can view it by clicking "Clinics & Patients", then "News & Announcements". The article and more information is also available at The American Academy of Periodontology web site at http://www.perio.org .

This revised classification system is now part of the periodontics curriculum. Should you have any questions or need additional information, please contact
Drs. Anderson, Moretti, or O'Neill in Periodontics.