Résumé
Aggressive periodontitis [AgP] is a periodontal disease characterized by frequently severe clinical manifestations that normally affect young individuals, progress rapidly and can involve multiple family members. The purpose of this study is to investigate the prevalence of AgP and the association with some risk factors among students aged 12 to 18 years in southern districts of Syria. In a cross-sectional study, a total of 1216 students [596 males and 620 females] from Daraa [827] and Swaida [389] governorates were examined according to the recommendations of the Community Periodontal Index of Treatment Needs [CPITN] by using WHO ball-tip probe, and daylight for illumination. Six teeth were examined" including first molars and central incisors" at four sites of each one, in addition to simplified oral hygiene "OHI-S", gingival recession "GR", clinical attachment loss "CAL", and bleeding on probing "BOP" indices which were recorded as clinical parameters. Every student exhibited CAL