none 10.31254/dentistry.2026.11202 BioMed Research Publishers BioMed Research Publishers 16195 199065677 314763 20260802061137627 10.31254 2026-08-02T19:03:21Z 2026-08-02T19:03:20Z 0 International Journal of Dentistry Research Int J Dentistry Res 25813218 10.31254/dentistry https://www.dentistryscience.com/ 8 2026 11 2 Sihame Chemlali Department of Periodontology, Faculty of Dental Medicine, Hassan II University, Casablanca, Morocco https://orcid.org/0000-0001-7295-3677 Zineb Essadeq Department of Periodontology, Faculty of Dental Medicine, Hassan II University, Casablanca, Morocco https://orcid.org/0009-0005-0897-6010 Samia Belfellah Department of Periodontology, Faculty of Dental Medicine, Hassan II University, Casablanca, Morocco https://orcid.org/0009-0007-1303-3492 Kissa Jamila Department of Periodontology, Faculty of Dental Medicine, Hassan II University, Casablanca, Morocco https://orcid.org/0000-0002-1497-387X Periodontal diseases are multifactorial conditions due to their numerous modifying and aggravating factors. Their diagnosis becomes particularly challenging in the absence of a proper classification system, which would allow clinical parameters to be confronted with recent scientific and epidemiological data. Over the years, the understanding of the nature of periodontal diseases has evolved in line with advances in medical research. Nevertheless, debate surrounding classification systems persists. The 2017 classification of periodontal diseases established by the American Academy of Periodontology (AAP) and the European Federation of Periodontology (EFP) aimed to address the limitations of the Armitage classification published in 1999. However, some aspects of this classification may be difficult to apply in specific contexts, such as in Morocco, where the previous distinction of aggressive periodontitis (AgP) as a separate category remains clinically relevant. 8 2026 26 29 1 10.31254/biomed-crossmark-policy www.biomedresearch.org false 10.31254/dentistry.2026.11202 https://www.dentistryscience.com/IJDR_2026112_02.pdf