The American Academy of Periodontology has developed the following parameter on the treatment of acute periodontal diseases. Patients should be informed about the disease process, therapeutic alternatives, potential complications, expected results, and their responsibility in treatment. Consequences of no treatment should be explained. Failure to treat acute periodontal diseases appropriately can result in progressive loss of periodontal supporting tissues, an adverse change in prognosis, and could result in tooth loss. Given this information, patients should then be able to make informed decisions regarding their periodontal therapy.