Periodontitis: Consensus report of workgroup 2 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions

Panos N. Papapanou, Mariano Sanz, Nurcan Buduneli, Thomas Dietrich, Magda Feres, Daniel H. Fine, Thomas F. Flemmig, Raul Garcia, William V. Giannobile, Filippo Graziani, Henry Greenwell, David Herrera, Richard T. Kao, Moritz Kebschull, Denis F. Kinane, Keith L. Kirkwood, Thomas Kocher, Kenneth S. Kornman, Purnima S. Kumar, Bruno G. LoosEli Machtei, Huanxin Meng, Andrea Mombelli, Ian Needleman, Steven Offenbacher, Gregory J. Seymour, Ricardo Teles, Maurizio S. Tonetti

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314 Scopus citations


A new periodontitis classification scheme has been adopted, in which forms of the disease previously recognized as "chronic" or "aggressive" are now grouped under a single category ("periodontitis") and are further characterized based on a multi-dimensional staging and grading system. Staging is largely dependent upon the severity of disease at presentation as well as on the complexity of disease management, while grading provides supplemental information about biological features of the disease including a history-based analysis of the rate of periodontitis progression; assessment of the risk for further progression; analysis of possible poor outcomes of treatment; and assessment of the risk that the disease or its treatment may negatively affect the general health of the patient. Necrotizing periodontal diseases, whose characteristic clinical phenotype includes typical features (papilla necrosis, bleeding, and pain) and are associated with host immune response impairments, remain a distinct periodontitis category. Endodontic-periodontal lesions, defined by a pathological communication between the pulpal and periodontal tissues at a given tooth, occur in either an acute or a chronic form, and are classified according to signs and symptoms that have direct impact on their prognosis and treatment. Periodontal abscesses are defined as acute lesions characterized by localized accumulation of pus within the gingival wall of the periodontal pocket/sulcus, rapid tissue destruction and are associated with risk for systemic dissemination.

Original languageEnglish (US)
Pages (from-to)S173-S182
JournalJournal of periodontology
StatePublished - Jun 1 2018

All Science Journal Classification (ASJC) codes

  • Periodontics


  • acute periodontal conditions
  • endo-periodontal lesion
  • necrotizing gingivitis
  • necrotizing periodontitis
  • periodontal abscess
  • periodontal disease
  • periodontitis


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