Hamedi, A., Saeidi, S., & Kheradmand, Z. (2025). Non-surgical Management of a C-shaped Mandibular Second Molar with Apical Periodontitis and External Root Resorption: A Case Report. Iranian Endodontic Journal, 20(1), e45. https://doi.org/10.22037/iej.v20i1.48177