Patterns of Root Canal Instrumentation in a Nigerian Teaching Hospital: A Retrospective Cross-sectional Study. Nigerian Dental Journal, [S. l.], v. 34, n. 2, 2026. DOI: 10.61172/hpaxeg74. Disponível em: https://nigeriandentaljournal.ng/ndj/article/view/459. Acesso em: 18 jun. 2026.