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Evaluation of permanent premolars intended for endodontic treatment in term of root number & form, condition of periapical area and state of lamina dura (Radiographic survey). MDJ [Internet]. 2018 Jan. 25 [cited 2026 Jun. 4];5(4):323-6. Available from: https://mdj.uomustansiriyah.edu.iq/index.php/mdj/article/view/552