1. So Ran Kwon, DDS, MS, PhD, MS, Loma Linda University, School of Dentistry, Center for Dental Research, Department of Restorative Dentistry, Loma Linda, CA, USA
2. Philip W. Wertz, PhD, University of Iowa, College of Dentistry, Dows Institute for Dental Research, Iowa City, IA, USA
3. Deborah V. Dawson, PhD, ScM, University of Iowa, College of Dentistry, Dows Institute for Dental Research, Iowa City, IA, USA
4. Deborah S. Cobb, DDS, MS, University of Iowa, College of Dentistry, Operative Dentistry, Iowa City, IA, USA
5. Gerald Denehy, DDS, MS, University of Iowa, College of Dentistry, Operative Dentistry, Iowa City, IA, USA