Summary: Aggressive periodontitis describes a type of periodontal disease and includes two of the seven classifications of periodontitis:Localized aggressive periodontitis (LAP),Generalized aggressive periodontitis (GAP). LAP is localised to first molar or incisor interproximal attachment loss, whereas GAP is the interproximal attachment loss affecting at least three permanent teeth other than incisors and first molar. The prevalence of LAP is less than 1% and that of GAP is 0.13%. Approximately 0.1% of white Caucasians(with 0.1% in northern and in central Europe, 0.5% in southern Europe, and 0.1-0.2% in North America) and 2.6% of black Africans may suffer from LAP. Estimates of the disease prevalence are 1-5% in the African population and in groups of African descent, 2.6% in African-Americans, 0.5-1.0% in Hispanics in North America, 0.3-2.0% in South America, and 0.2-1.0% in Asia. On the other hand, in Asia, the prevalence rate of 1.2% for LAP and 0.6% for GAP in Baghdad and Iran population, and 0.47% in Japanese population. More >> Less >>

Reference Material:
https://en.wikipedia.org/wiki/Aggressive_periodontitis