1. HM Yoo, DDS, MSD, PhD, associate professor, Department of Conservative Dentistry, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea and Department of Operative Dentistry, School of Dentistry, University of North Carolina at Chapel Hill, NC, USA
2. TS Oh, DDS, MSD, PhD, chairperson, professor, Department of Conservative Dentistry, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
3. PNR Pereira, DDS, PhD, assistant professor, Department of Operative Dentistry, School of Dentistry, University of North Carolina at Chapel Hill, NC, USA