**5. Conclusions**

In summary, the four calcium silicate-based cements evaluated in this study using GDSCs had good biological properties. The ProRoot MTA, Biodentine, and RetroMTA groups showed higher mineralization potential compared to the Endocem Zr and control groups. Therefore, Biodentine and RetroMTA can be used as alternatives to ProRoot MTA to treat ERR in terms of esthetics. Further in vivo research is needed.

**Author Contributions:** D.L. and J.-B.P. contributed equally to this work. D.L., J.-B.P., and S.-Y.K. participated in the conceptualization and design of the study. D.L., D.S., and H.-M.K. performed all the experimental procedures and contributed to data acquisition. D.L., J.-B.P., D.S., H.-M.K. and S.-Y.K. contributed substantially to data interpretation and analysis. D.L., J.-B.P., and S.-Y.K. were involved in drafting the manuscript and revising it critically for important intellectual content. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by a National Research Foundation of Korea (NRF) grant funded by the Korean government (Ministry of Science, ICT and Future Planning) (no. 2017R1C1B5017098 and 2019R1F1A1058955).

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