**5. Conclusions**

The SLM technique showed an improved coping marginal fit, but high roughness compared with controls. By contrast, the DLP-Cast specimens had smooth surfaces with poor marginal fits. Therefore, the application of additive manufacturing methods (SLM and DLP-Cast) in the fabrication of CoCr metal alloy coping needs further development.

**Author Contributions:** Conceptualization, A.S.A., F.V., T.A. and S.A.-S.; methodology, A.S.A., A.A., T.A. and M.E.; validation, A.S.A., S.A.-S., A.A., M.E. and M.K.A.; formal analysis, A.A., A.S.A., T.A., M.K.A. and M.E.; investigation, A.S.A., T.A., M.K.A., M.E., A.M.A. and F.V.; resources, T.A., S.A. and A.M.A.; data curation, M.K.A., S.A. and F.V.; writing—original draft preparation, F.V., S.A.-S. and S.A.; writing—review and editing, T.A., A.M.A. and A.A.; supervision, F.V., T.A. and A.S.A.; funding acquisition, T.A. All authors have read and agreed to the published version of the manuscript.

**Funding:** The authors are grateful to the Researchers supporting project at King Saud University for funding through Researchers supporting project No. (RSP-2019-44).

**Institutional Review Board Statement:** No ethical approval was required as patients or human or animal tissues were not involved in the study.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** The data is available on contact from the corresponding author.

**Acknowledgments:** The authors are grateful to the Researchers supporting project at King Saud University for funding through Researchers supporting project No. (RSP-2019-44).

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

#### **References**

