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March 5, 2026BMC Oral HealthOpen Access

Vertical marginal fit of advanced lithium disilicate crowns: an in- vitro study

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Authors

AWAisha Fouad WafaieMisr International UniversityHZHanaa ZaghloulPrincess Nourah bint Abdulrahman UniversityYAY AttiaMisr International University

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Implication

In vitro study assesses vertical marginal fit of advanced and conventional lithium disilicate crowns, suggesting comparable performance.

Key Points

  • To evaluate and compare the vertical marginal fit of advanced and conventional lithium disilicate crowns.
  • Constructed ten ceramic crowns assigned to two groups: CEREC Tessera and IPS e.max CAD.
  • Evaluated vertical marginal fit with a stereomicroscope at 10X magnification.
  • Measured twenty points for each crown before and after cementation.
  • Used Mann-Whitney U test for group comparisons and Wilcoxon signed-rank test for within-group comparisons.
  • No significant difference in vertical marginal fit between the two groups before or after cementation.
  • Both groups showed a statistically significant decrease in vertical marginal fit after cementation.
  • CEREC Tessera and IPS e.max CAD crowns exhibited mean marginal gap values within clinically acceptable limits.

Cite This Study

Wafaie et al. (2026) studied this question.

synapsesocial.com/papers/69a91f0ad6127c7a504c28aahttps://doi.org/10.1186/s12903-026-07743-7
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