Interleukin Genetics, Inc. has announced the 13th International Conference on Periodontal Research in Ljubljana, Slovenia.on June 6, 2008 with focus on the genetic and environmental factors that control inflammation differences among individuals. The ICPR meeting has been held approximately every three years since 1969 to bring together world leaders in periodontal research to reassess the current knowledge in the field and to identify new research direction, as well as to improve the diagnosis, prevention, and treatment of periodontal diseases. Approximately 30-60% of the severity of periodontal disease is determined by genetics. Interleukin Genetics developed and markets the PST genetic test to help identify individuals at increased risk for severe periodontal disease and complications from dental implants. This test helps dentists guide the management of their patients' periodontal disease to avoid complications of severe periodontitis.