1. Department of Prosthodontics; Ege University, School of Dentistry; Izmir Turkey
2. Department of Endodontics; Izmir Katip Çelebi University, School of Dentistry; Izmir Turkey
3. University of Zurich; Dental Materials Unit; Center for Dental and Oral Medicine; Clinic for Fixed and Removable Prosthodontics and Dental Materials Science; Zurich Switzerland