Interview with William Giannobile (AUDIO) University of Michigan Your browser does not support the audio element. Caption Researchers discover a way to use gene therapy to slow and reverse the progression of periodontal disease. Credit Laura Bailey Usage Restrictions None 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.