Vidal, AndreiaTeles, Ana MouraCardoso, MiguelBartolomeu, MariaNoites, Rita2026-02-192026-02-192026-02-14Vidal, A., Teles, A. M., Cardoso, M., & Bartolomeu, M. et al. (2026). CBCT in evaluation of root canal preparation - a scoping review. Dentistry Journal, 14(2), Article 114. https://doi.org/10.3390/dj140201142304-67675593c823-732d-4649-85af-7bc9598605d7http://hdl.handle.net/10400.14/57121Cone-beam computed tomography (CBCT) is widely utilized in endodontics for evaluating root canal shaping outcomes, offering critical three-dimensional imaging capabilities. This study aims to assess the differences in apical and root canal preparation across various instrumentation techniques using CBCT. A systematic search of the Medline database (via PubMed) and Web of Science was performed up to 12 April 2025, yielding a total of 70 studies, with 45 full-text articles assessed for eligibility; 28 were included in the review. Studies showed great heterogeneity in experimental design, anatomical variables, and outcome measurements. The results indicate that rotary instruments, such as ProTaper Next® and XP-Endo Shaper®, were reported more frequently or showed favorable shaping trends in individual studies. Although rotary systems often appeared advantageous, conclusions were limited by study design variability and a lack of correlation with clinical outcomes. The evidence highlights the need for standardized methodologies and further research, especially on manual techniques. CBCT remains a valuable research tool despite inherent spatial resolution limitations.engCBCTDental instrumentsEndodonticsRoot canal preparationRoot canal therapyreview article10.3390/dj14020114105031229653PMC12939242001701452200001