Aggressive periodontitis attacks people at early age of life and causes extensive bone loss which might lead to early loss of dentition, early detection of patients at high risk to be attacked by this type of periodontitis will help them a lot to be involved in a strict professional and personal preventive program thus minimize the periodontal damage to a large extent .I wonder if any one has ideas about any chairside methods for early detection of risk factors and those who are at a high risk for developing this kind of periodontitis?