Charles Sfeir, D.D.S., Ph.D. (IMAGE) University of Pittsburgh Caption Charles Sfeir, D.D.S., Ph.D., associate professor and chair of the Department of Periodontics and Preventive Dentistry in the University of Pittsburgh School of Dental Medicine and member of the McGowan Institute for Regenerative Medicine Credit University of Pittsburgh School of Dental Medicine Usage Restrictions For use with release License Original 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.