Untreated and Treated Tooth (IMAGE) University of Pennsylvania Caption A tooth before (top) and after (below) six weeks of treatment shows noticeable improvements in redness and inflammation. Credit University of Pennsylvania Usage Restrictions In context of reporting License Licensed content 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.