In Operative Dentistry 36(6) 572–580, The Effect of Bleachıng Systems on the Gingiva and the Levels of IL-1β and IL-10 in Gingival Crevicular Fluid an author name was omitted from the list of authors. Dr. Ozlem Ozer Yucel should be listed as 4th co-author with the following affiliation address: Özlem Özer Yücel, DDS, PhD., Department of Oral Pathology, Faculty of Dentistry, Gazi University, Ankara, Turkey. The Authors and Operative Dentistry apologize for this omission.