ABSTRACT
Aggressive periodontitis [AgP] is one of the periodontal diseases which affects systemically healthy individuals usually under the age of 30. The disease is characterized by a rapid attachment loss and destruction of alveolar bone. The aim of the present study is to assess the prevalence of [AgP] among schoolchildren in the eastern districts of Syria and to investigate the role of some and risk factors and determinants. In a cross sectional study, a random sample of 1200 students was drawn [568 males and 614 females] aged from 12-20 years [mean=16 years] from Deirezzor and Al-hasakah govrnorates in the eastern districts of Syria. Students completed a written questionnaire for determinants [age, gender, race] and risk factores [oral hygiene, smoking,soci-economic and education level] for [AgP], and have been examined according to [CPITN] by WHO probe, Gingival recession[GR], Probing Pocket Depth[PPD] and simplified oral hygiene[OHI-S] indices. Students who exhibited clinical attachment loss [CAL] >/= 4 mm at one or more tooth surface were scheduled for further periodontal examination. [AgP] was diagnosed according to the AAP classification 1999. chi-square test was used at P