Parirokh, M., Manochehrifar, H., Nakahee, N., Kakooei, S., & Ghadimi, S. (2026). Investigating the Association between the Presence of Pulp Stone and Anesthesia Failure in Upper and Lower Molar Teeth. Iranian Endodontic Journal, 21(1), e15. https://doi.org/10.22037/iej.v21i1.46586