1. Department of Operative Dentistry, Faculty of Dentistry, University of Kocaeli, Kocaeli, Turkey.
2. Department of Conservative Dentistry, Faculty of Dentistry, Baskent University, Ankara, Turkey.
3. Department of Conservative Dentistry, Faculty of Dentistry, Hacettepe University, Ankara, Turkey.
4. Department of Periodontology, School of Dentistry, University of Istanbul, Istanbul, Turkey.