Continuing Education For Dentists & Staff

Staging and Grading Periodontitis

The 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions resulted in a new
classification of periodontitis characterized by a multidimensional staging and grading system.

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Periodontal and Peri-Implant Classification Scheme

A classification scheme for periodontal and peri-implant diseases and conditions is
necessary for clinicians to properly diagnose and treat patients as well as for scientists
to investigate etiology, pathogenesis, natural history, and treatment of the diseases and
conditions. This paper summarizes the proceedings of the World Workshop on the
Classification of Periodontal and Peri-implant Diseases and Conditions. The workshop was co-sponsored by the American Academy of Periodontology (AAP) and the
European Federation of Periodontology (EFP) and included expert participants from
all over the world. Planning for the conference, which was held in Chicago on November 9 to 11, 2017, began in early 2015.

An organizing committee from the AAP and EFP commissioned 19 review papers and
four consensus reports covering relevant areas in periodontology and implant dentistry. The authors were charged with updating the 1999 classification of periodontal
diseases and conditions1 and developing a similar scheme for peri-implant diseases
and conditions. Reviewers and workgroups were also asked to establish pertinent case
definitions and to provide diagnostic criteria to aid clinicians in the use of the new
classification. All findings and recommendations of the workshop were agreed to by
consensus.

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