K. Hero Breuning, DDS, PhD, was Assistant Professor of 3D Imaging at the Department of Orthodontics and Craniofacial Biology at Radboud University Medical Centre, Nijmegen, the Netherlands.
Chung H. Kau, BDS, MScD, MBA, PhD, MOrth, FAMS, FDSGlas, FFD (Ortho), FDSEdin, FAMS, FICD, is Professor and Chairman at the Department of Orthodontics at the University of Alabama-Birmingham School of Dentistry in Birmingham, Alabama, USA.