Mehdizadeh, A.H. et al. 2025. Non-Surgical Management of a Mandibular First Molar with Strip Perforation, Separated File, and Canal Ledge: A Case Report. Iranian Endodontic Journal. 20, 1 (Aug. 2025), e31. DOI:https://doi.org/10.22037/iej.v20i1.48539.