Genetic Signature Reveals New Way to Classify Gum Disease (image) Columbia University Medical Center Share Print E-Mail Caption By looking at the expression of thousands of genes in gum tissue, researchers can now classify most cases of periodontitis into one of two clusters. More severe cases of the disease are represented under the red bar, less severe cases under the blue bar. The findings may allow for earlier diagnosis and more personalized treatment of severe gum disease, before irreversible bone loss has occurred. Credit Panos N. Papapanou, D.D.S., Ph.D./Columbia University College of Dental Medicine Usage Restrictions The image may only be used in the context of this news story. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.