**5. Conclusions**

To summarize, within the constraints of this in vitro study, the results indicate that the Endogal and Reciproc Blue NiTi endodontic reciprocating systems are similarly capable of removing root canal dentin, except for in the coronal root canal third, in which the Reciproc Blue NiTi endodontic reciprocating system preserved more root canal dentin tissue.

**Author Contributions:** All authors aided in the research, supervision, writing, review, and editing of the study. Conceptualization, V.F.-L. and Á.Z.-M.; data curation, I.F.-M. and D.P.O.; formal analysis, V.F.-M.; visualization, C.R.-S. and A.M.R.O. All authors have read and agreed to the published version of the manuscript.

**Funding:** No external funding was applied to this research.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Information is available on request in accordance with any relevant restrictions (e.g., privacy or ethical).

**Conflicts of Interest:** The authors declare no conflict of interest.
