1. Department of Endodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
2. Department of Endodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
3. Department of Endodontics, Faculty of Dentistry, Afyon Kocatepe University, Turkey
4. Department of Endodontics, Faculty of Dentistry, Kırıkkale University, Kırıkkale, Turkey