1. Gulhane Dentistry Faculty, Department of Periodontology University of Health Sciences Ankara Turkey
2. Forsyth Institute Cambridge Massachusetts USA
3. Gulhane Dentistry Faculty, Department of Oral and Maxillofacial Radiology University of Health Sciences Ankara Turkey
4. Department of Biochemistry Acıbadem University Ankara Turkey
5. Gulhane Medical Faculty, Department of Biochemistry Health Sciences University Ankara Turkey