1. Eva Eleni Achilleos, DDS, MSD, PhD, graduate student, Department of Operative Dentistry, University of Athens, Heraklion, Greece
2. Chris Rahiotis, PhD, assistant professor, Department of Operative Dentistry, National Kapodistrian University of Athens, Athens, Greece
3. Katerina Kavvadia, DDS, M Dent Sc, Dr Odont, associate professor, Department of Pediatric Dentistry, School of Dentistry, University of Athens, Athens, Greece
4. George Vougiouklakis, DDS, MSD, PhD, emeritus professor, Department of Operative Dentistry, University of Athens, Athens, Greece