Journal of Dental Materials and Techniques (Sep 2022)

A Comparative Study of Marginal Adaptation between Monolithic and Layered Zirconia Crowns: A Literature Review

  • Ezatollah Jalalian,
  • Verishe Rastin

DOI
https://doi.org/10.22038/jdmt.2022.64000.1507
Journal volume & issue
Vol. 11, no. 3
pp. 138 – 142

Abstract

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Introduction: Marginal adaptation highly affects the long-term success of crowns. This study intends to investigate the marginal adaptation of monolithic zirconia and veneered zirconia crowns. Methods: Based on our searches in PubMed and Google Scholar from 2011 to 2020, 22 articles were obtained, and after studying their full-texts. Five articles that were most related to our subject were selected. Results: In almost all articles, the greatest mean marginal gap value was recorded for monolithic zirconia, whereas layered zirconia crowns demonstrated the lowest mean marginal gap values. Conclusion: Based on finding of the current study, monolithic zirconia restorations had a superior marginal adaptation than layered zirconia restorations. However, clinically both restorations have an acceptable marginal fit

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