The Iranian Endodontic Journal (IEJ) is an international peer-reviewed biomedical publication, which aims to provide a scientific medium/ground of communication for researchers, thinkers, readers and clinicians throughout the globe. IEJ publishes the highest quality articles/papers, basic science and clinical, on all aspects of Endodontics and related fields. IEJ is the official journal of the Iranian Center for Endodontic Research (ICER) and Iranian Association of Endodontists (IAE), and welcomes different types of papers; e.g. original research, systematic reviews, meta-analyses, review of literature, clinical studies (i.e., randomized clinical trials, case series/reports, etc), hypotheses, letters to the editor and so forth.