Hina Tariq, Rizwan Qureshi. ASSESSMENT OF PERIAPICAL PERIODONTITIS IN ROOT CANAL TREATMENT FAILURE PATIENTS RELATED TO THE LENGTH OF ROOT CANAL FILLING. Pak Oral Dent J. 2023;43(1):10-14. Accessed April 17, 2026. https://www.podj.com.pk/index.php/podj/article/view/720