Effect of Endodontic Instrument Tip Fracture on Apical Sealing of Obturated Root Canal: In Vitro and Retrospective Clinical and Radiological Study. Journal of Hama University , [S. l.], v. 1, n. 7, 2019. Disponível em: https://journal.hama-univ.edu.sy/huj/article/view/117. Acesso em: 6 jun. 2026.