Jabeen S, Khurshiduzzaman -. Postobturation Pain in Asymptomatic Non Vital Single Rooted Maxillary Teeth Following Single and Two Visit Root Canal Treatment. Chatt Maa Shi Hosp Med Coll J [Internet]. 2016 Jul. 17 [cited 2025 Oct. 24];15(1):45-8. Available from: https://www.banglajol.info/index.php/CMOSHMCJ/article/view/28762