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

Abstract

Abstract 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. S taging 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.

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Affiliated Institutions

• University of Louisville US
• University at Buffalo, State University of New York US
• The University of Queensland AU
• University of Hong Kong HK
• Universidad Complutense de Madrid ES
• University College London GB
• University of Birmingham GB
• Columbia University US
• University of Michigan US
• University of Geneva CH
• The Ohio State University US
• University of Bonn DE
• University of Pisa IT
• Guarulhos University BR
• Vrije Universiteit Amsterdam NL
• Ege University TR
• University of Pennsylvania US
• Academic Center for Dentistry Amsterdam NL
• Rutgers, The State University of New Jersey US
• University of North Carolina at Chapel Hill US
• University of Amsterdam NL
• Peking University CN
• Rambam Health Care Campus IL

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