The 4 Major Components of the New Classification System

The 4 working group categories previously identified in the course introduction became the foundation for the new classification. Table 1 below illustrates the more detailed components of the new classification.

Table 1. The Components of the New Periodontal Disease Classification.

Periodontal Health, Gingivitis & Gingival Conditions	Periodontitis	Other Conditions Affecting the Periodontium	Peri-implant Disease & Conditions
1. Periodontal Health & Gingival Health 2. Gingivitis Biofilm Induced 3. Gingival Diseases Non-biofilm Induced	1. Necrotizing Periodontal Diseases 2. Periodontitis as a Manifestation of Systemic Diseases 3. Periodontitis	1. Systemic diseases or conditions affecting periodontal supporting structures 2. Periodontal abscesses & endodontic-periodontal lesions 3. Mucogingival deformities & conditions 4. Traumatic occlusal forces 5. Tooth and prostheses-related factors	1. Peri-implant Health 2. Peri-implant Mucositis 3. Peri-implantitis 4. Peri-implant hard & soft tissue deficiencies

Adapted from Caton et al. ²

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