Omnia Nabil, Eman M Anwar, Heba El-Khayat, Mostafa Aboushahba. "Gingival Recession and Marginal Adaptation of Zirconia Crowns with Two Subgingival Margin Designs: A Randomized Clinical Trial." The Journal of Contemporary Dental Practice (2025). https://doi.org/10.5005/jp-journals-10024-3932