1. Department of Periodontology, Faculty of Dentistry Ondokuz Mayıs University Samsun Turkey
2. Department of Periodontology, Faculty of Dentistry Bezmialem Vakıf University İstanbul Turkey
3. Department of Biochemistry, Faculty of Medicine Ondokuz Mayıs University Samsun Turkey
4. Division of Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine Ondokuz Mayis University Samsun Turkey