The American Academy of Periodontology publishes papers dealing with the etiology, pathogenesis or treatment of periodontal diseases. New and revised documents are published in the Journal of Periodontology as well as on the AAP's Web site ( http://www.perio.org/ ).

The Web-site version of the Position Papers are saved in Portable Document Format (PDF). To open them, you must have a program called Acrobat Reader installed on your computer. If you don't already have it, you can download Acrobat Reader for free.