Australian Society of Periodontology:United Dental Hospital of Sydney, Department of Periodontics, 2 Chalmers Street, Surry Hills NSW 2010 Australia:011 61 2 92933488, EMAIL: barbara.taylor@email.cs.nsw.gov.au, INTERNET: http://www.cs.nsw.gov.au, Fax: 011 61 2 92933488