Which periodontal condition has been added in the 2017 classification?

• A. Peri-implantitis
• B. Localized periodontitis
• C. Periodontal abscess
• D. Chronic gingivitis

Answer: (A)

The correct answer is peri-implantitis, which was identified and explicitly classified in the 2017 World Workshop on the Classification of Periodontal and Peri-implant Diseases and Conditions. This classification update was significant because it recognized the importance of distinguishing between various peri-implant diseases, including peri-implantitis, which is characterized by inflammation of the peri-implant tissues and bone loss.

Peri-implantitis is of particular concern in periodontal practice because of its implications for dental implants, an increasingly common therapeutic option in restorative dentistry. By formally adding this condition, the classification highlights the need for specific diagnostic and treatment strategies tailored to manage complications related to dental implants.

The other conditions listed, while relevant to periodontal health, were already recognized prior to the 2017 classification update. Localized periodontitis and chronic gingivitis have been established conditions but are not new to the classification framework. Periodontal abscesses, too, have been part of the previously existing periodontal disease classifications. Thus, the inclusion of peri-implantitis marks a notable shift in how periodontal practitioners approach and manage care associated with implant dentistry.