A 30 year old female with continuous dull pain following perforation during root canal treatment in lower left first molar tooth. Bangabandhu Sheikh Mujib Medical University Journal [Internet]. 2018 Sep. 2 [cited 2026 Jun. 25];11(3):256-60. Available from: https://banglajol.info/index.php/BSMMUJ/article/view/37607