1. Department of Endodontics; Faculty of Dentistry; Ankara University; Ankara Turkey
2. Ministry of Health; Ataturk Oral and Dental Health Care Hospital; Ankara Turkey
3. Division of Pediatric Dentistry; Ministry of Health; 75th Year Ankara Oral and Dental Health Centre Ankara Turkey
4. Department of DentoMaxillofacial Radiology; Faculty of Dentistry; Ankara University; Ankara Turkey
5. Ministry of Health; Bolu Oral and Dental Health Care Hospital; Bolu Turkey
6. Ministry of Health; Public Hospitals Agency of Turkey; Ankara Turkey