1. *Raed Ajlouni, BDS, MS, assistant professor, Department of General Dentistry, Baylor College of Dentistry, Dallas, TX, USA
2. Khaldoun Ajlouni, BDS, MS, assistant professor, Department of Adult Restorative Dentistry, University of Nebraska Medical Center, Lincoln, NE, USA
3. Gerald E Denehy, DDS, MS, professor and chair, Department of Operative Dentistry, College of Dentistry, University of Iowa, Iowa City, IA, USA