Olborska, Anna, Piotr Osica, and Anna Janas-Naze. “Long-Term Pain Caused by Obturation Material Pushed Beyond the Apex – a Case Report”. Journal of Education, Health and Sport 8, no. 9 (September 15, 2018): 1530–1540. Accessed January 9, 2025. https://apcz.umk.pl/JEHS/article/view/6079.