R. T. Asaad and N. H. Hamasaeed, “Assessing The Prevalence of Anatomical Variations in Root Canals of Maxillary Molars and Premolars Using Cone Beam Computed Tomography in Erbil City: Retrospective CBCT Study”, EDJ, vol. 8, no. 2, pp. 119–127, Dec. 2025.